Research article | Open | Open Peer Review | Published:
Measuring the quality of maternal and care processes at the time of delivery in sub-Saharan Africa: development and validation of a short index
BMC Pregnancy and Childbirthvolume 19, Article number: 133 (2019)
There is a growing recognition that quality of care must improve in facility-based deliveries to achieve further global reductions in maternal and newborn mortality and morbidity. Better measurement of care quality is needed, but the unpredictable length of labor and delivery hinders the feasibility of observation, the gold standard in quality assessment. This study evaluated whether a measure restricted to actions at or immediately following delivery could provide a valid assessment of the quality of the process of intrapartum and immediate postpartum care (QoPIIPC), including essential newborn care.
The study used a comprehensive QoPIIPC index developed through a modified Delphi process and validated by delivery observation data as a starting point. A subset of items from this index assessed at or immediately following delivery was identified to create a “delivery-only” index. This delivery-only index was evaluated across content and criterion validation domains using delivery observation data from Kenya, Madagascar, and Tanzania, including Zanzibar.
The delivery-only index included 13 items and performed well on most validation criteria, including correct classification of poorly and well-performed deliveries. Relative to the comprehensive QoPIIPC index, the delivery-only index had reduced content validity, representing fewer dimensions of QoPIIPC. The delivery-only index was also less strongly associated with overall quality performance in observed deliveries than the comprehensive QoPIIPC index.
Where supervision resources are limited, a measure of the quality of labor and delivery care targeting the time of delivery may mitigate challenges in observation-based assessment. The delivery-only index may enable increased use of observation-based quality assessment within maternal and newborn care programs in low-resource settings.
Maternal deaths have decreased dramatically in the past two decades; however, only nine of the 75 countries monitored by the Countdown to 2015 group have achieved the Millennium Development Goal (MDG) for reducing maternal mortality [1,2,3,4]. The lifetime risk of maternal mortality in sub-Saharan Africa is 1 in 39, but only 1 in 3800 in high income countries . Two million intrapartum stillbirths and intrapartum event-related early neonatal deaths also continue to occur annually .
More women are delivering in facilities in many low-income countries. Contact with health care providers does not, however, guarantee that appropriate interventions will be provided during labor & delivery (L&D) and the immediate postpartum period, including essential newborn care (ENC) [6,7,8]. High quality care ensures that women and neonates receive interventions shown to reduce intrapartum and postpartum complications or to be effective in managing these complications [9,10,11,12]. Studies indicate that coverage with effective interventions is poor during the intrapartum and immediate postpartum periods [13,14,15,16]. Studies from multiple countries indicate that increasing facility delivery may not suffice for mortality reduction in settings with low quality of care (QoC) [17,18,19].
Assessing the quality of maternity services is challenging. The vast majority of deliveries are uncomplicated, yet obstetric complications may arise even when evidence-based care has been provided [8, 20, 21]. It is, therefore, essential to assess QoC not just through clinical outcomes, but also through evaluation of care processes during labor, delivery, and the immediate postpartum period [22, 23].
A recent literature review of indicators used to assess the quality of L&D care found hundreds of proposed indicators but little validation or standardization of measures . There is no consensus about measurement of the quality of the process of intrapartum and immediate postpartum care (QoPIIPC), i.e., the actions conducted by providers during L&D care. Most existing tools to assess care processes have only been evaluated using expert opinion. Measures of QoPIIPC based on clinical guidelines or programmatic evidence can be lengthy; some include hundreds of indicators [25, 26]. Administering these tools is difficult and has significant opportunities for measurement error. A number of studies have assessed QoPIIPC through criterion-based audit or other record review, but generally relied on routine data sources, such as maternity registers, that are not designed for quality assessment. The indicator review also found that two-thirds of quality assessment studies, including nearly all criterion-based audits, focused on adverse events and maternal complications . For example, the widely-used UN process indicators for maternal health programs target emergency obstetric and neonatal care (EmONC) [27, 28]. There is relatively little information about the quality of routine L&D care and ENC.
The indicator literature review also found that few studies have used observation of maternity care in assessing quality . A substantial body of research suggests the unique role of direct observation in quality assessment [29, 30]. Numerous studies in low-resource settings have shown that facility records may not document actions that were performed and are otherwise incomplete and unreliable [29,30,31,32]. Several studies have shown low agreement among peers after reviewing the same records, particularly for indicators of care processes [33,34,35], and limitations to quality assessment using other non-observation methods such as vignette or case simulation .
The infrequent use of clinical observation in maternity services is understandable; the length of an episode of L&D care is unpredictable, with even uncomplicated cases having the potential to last up to 24 h . Procuring skilled, expert observers can also be challenging in settings where the availability of providers is limited and workloads are high. The burden in obtaining observation data is a significant barrier to comprehensive assessment of L&D care in settings without adequate human, transport, and financial resources for supervision activities [37, 38]. A recent study developed and validated a comprehensive measure assessing actions throughout an episode of L&D care  This measure is the first empirically validated observation-based tool to assess QoPIIPC that we ae aware of. However, it faces limitations in use due to these burdens in observing an entire episode of L&D care.
These challenges notwithstanding, improved assessment of the quality of routine L&D services at health facilities is essential in the current era of rapidly increasing facility delivery. Robust quality measures must be valid and reliable, but also efficient. Observation-based tools in particular must minimize the burden on clinical supervisors in low-resource settings. To examine whether this burden could be reduced while maintaining the validity of quality measurement, this study evaluated whether a measure restricted to actions performed at and immediately after delivery can provide a meaningful assessment of QoPIIPC in facility-based L&D care in sub-Saharan Africa . The current study sought to validate a measure focused on the time of delivery using the same data and validation criteria as the earlier, comprehensive index developed by the same study team.
Selection of index items
The current study used the comprehensive facility-based QoPIIPC index developed through earlier analysis as a reference point. The process of developing and validating the comprehensive index is briefly summarized here and has been reported in detail previously . The comprehensive measure was developed following a modified Delphi process with maternal and neonatal care (MNC) experts to identify consensus dimensions of QoPIIPC. MNC experts also rated the ability of items, i.e., actions during intrapartum and postpartum care, to reflect these dimensions. The five consensus QoPIIPC dimensions identified by the expert group were technical quality, screening and monitoring quality, interpersonal care quality, the quality of infection prevention/control, and the avoidance of harmful or non-indicated interventions . Indices containing combinations of highly-rated items were developed based on MNC expert ratings and evaluated for face, content, and criterion validity. Secondary data obtained from surveys observing L&D care at health facilities in sub-Saharan Africa were used in index validation. The comprehensive QoPIIPC index of 20 items was selected based on comparison of performance on several validation benchmarks . The secondary data source and validation benchmarks are described further below.
For the analysis reported in this paper, the 20 items in the comprehensive QoPIIPC index were evaluated for whether they could be assessed at or immediately following delivery, thus avoiding observation of client intake and the unpredictably long first stage of active labor and early second stage of labor. Items meeting these criteria were retained in a “delivery-only” index.
Secondary data source
The Maternal and Child Health Integrated Program (MCHIP), a USAID-funded global project implemented by Jhpiego, conducted the QoC Assessments, a set of observational surveys in sub-Saharan Africa from 2010 to 2013. QoC Assessment data were used to evaluate the delivery-only index were obtained from a series of observational surveys of QoC in sub-Saharan Africa between 2010 and 2013. Specifically, the study used data from QoC Assessments conducted in 2010–2011 in Kenya, Madagascar, and Tanzania, including Zanzibar; as well as a repeat survey in Tanzania alone in 2012–2013. The countries were selected due to similarity in their maternal health services and indicators [40,41,42].
As described in reporting the earlier study to develop a comprehensive QoPIIPC index , a structured checklist was used for delivery observations in the QoC Assessments, based on World Health Organization recommendations and other global guidelines and surveys [7, 15, 20, 43, 44]. The checklist included items about essential L&D care as well as care for maternal and newborn complications . There were 131 routine care L&D items in the L&D observation checklist [39, 45].
The QoC Assessment sample sizes, at least 250 deliveries in each country, were intended to provide national estimates of routine L&D care practices. Details of sampling approaches and data collection tools are provided in each country’s survey report . Analytic samples in this study were restricted to L&D cases observed across intake, active labor, delivery, and the immediate postpartum period. The Zanzibar and Round 1 Tanzania samples were merged for analysis, as the number of deliveries observed in Zanzibar was small. Data were not weighted for analysis.
Observed delivery scores
The delivery-only index was evaluated within each country and across countries; it was compared to the comprehensive QoPIIPC index using QoC Assessment delivery observation data. As in the prior study, each observed delivery was assigned a comprehensive index score and a delivery-only index score. Each index item had a value of 1 if performed and 0 if not performed. These item scores were summed to create comprehensive and delivery-only index scores for each delivery. A total QoC score was also given to each delivery based whether each routine intrapartum and immediate postpartum care item in the full L&D observation checklist was performed.
Validation domains and benchmarks
The delivery-only index was assessed across six validation domains, each with multiple benchmarks. The domains were: representation of QoPIIPC dimensions; association of the index score with overall QoC performance; relation of each item in the index to overall QoC performance; ability to discriminate between poorly and well-performed deliveries; inclusion of items that ranged in frequency of performance; and variability and distribution of the index score. These validation domains evaluate the degree to which an index measures and is informative about QoPIIPC. Benchmarks are specific, quantifiable, and comparable criteria within each validation domain. A total of 28 benchmarks were assessed across the six validation domains. Validation domains, benchmarks, and selection criteria are identical to those used to validate the comprehensive QoPIIPC index in the earlier study, and have been described previously . A threshold of p < 0.05 was used in tests of statistical significance.
A particular focus of assessment was content and criterion validity. Content validity describes how well the index represents QoPIIPC, specifically the consensus dimensions identified through the Delphi process described above. Criterion validity is reflected by the relation of the index score to a reference measure of QoPIIPC. In this analysis, the total QoC score across all routine care items served as the reference measure of overall QoC performance.
To be useful, a quality measure must be able to discriminate between poorly and well-performed deliveries. Therefore, this domain accounted for a substantial proportion (15 of 28) of the validation benchmarks. To enable assessment of QoC discrimination, level of care quality was described with three dichotomous variables. First, relatively good performance was defined as being in the top 25% of the total QoC score distribution. Second, absolute good performance was defined as achieving at least 80% of the maximum possible total QoC score. Finally, relatively poor performance was defined as being in the bottom 25% of the total QoC score distribution. The three dichotomous variables were treated as the dependent variables in separate analyses.
Simple logistical regressions assessed the relation between index scores and the odds of being in each good/poor performance group. The area under receiver operating characteristic (AUROC) curves based on the logistic regression results was calculated for each good/poor performance classification. AUROCs indicate the ability of the index to correctly classify QoC. If two deliveries are drawn from the sample at random, the AUROC represents the proportion of pairs in which the delivery with the higher index score is in the good performance group and vice versa, for classification of poor performance. An AUROC of 0.7–0.9 shows moderate discrimination while over 0.9 is considered excellent discrimination [46, 47]. Predicted probabilities were calculated based on logistic regressions, representing the likelihood of being in the relative and absolute good performance groups at each value of the index score.
Analyses also compared the performance of the delivery-only and comprehensive QoPIIPC indices. AUROC comparisons assessed the relative ability of each index to classify deliveries as good or poor performance. Likelihood ratio tests compared the fit of linear and logistic regression models of the association between index scores and overall QoC performance. Likelihood ratio test assessment was possible because the delivery-only index items were a subset of the comprehensive index items. Comparisons used standardized index scores to avoid differences due to the number of items included in the two indices.
To enable comparison between the delivery-only and comprehensive indices, performance on each validation benchmark was given a score for each index; the index that performed better on each benchmark received 1 point and the other, 0 points. The scores were summed for each domain. The index with a higher score within each validation domain received 1 point and the other, 0 points. Finally, validation performance scores summing across domains (potential range from 0 to 6, with 1 point for each domain) were calculated for each index within each country and across countries.
Because the comprehensive QoPIIPC index was developed through an extensive expert review and validation process, the aim of this analysis was not to determine whether the delivery-only index is a “better” measure of quality. Instead, comparative evaluation of validation performance sought to examine whether the delivery-only index may be a robust alternative in settings of limited resources for quality assessment and observation of care.
Ethics and consent
The QoC Assessment protocol was reviewed and approved by ethical review boards in each country where the survey was conducted. In the countries whose data are analyzed in this study, these boards were: the Kenya Medical Research Institute Institutional Review Board (IRB) in Kenya; the Ministry of Health Ethical Committee in Madagascar; and the National Institute of Medical Research Institutional Review Board IRB in Tanzania. The Johns Hopkins Bloomberg School of Public Health IRB ruled the protocol for the QoC Assessment study across all countries exempt from review (reference number 00002549).
Written informed consent was obtained from facility directors prior to the QoC Assessment implementation. During data collection, verbal informed consent was obtained from providers and patients or patients’ next of kin. Providers were not asked to give written consent during the provision of L&D care; however, a comprehensive discussion of benefits and burdens was held with the facility directors in a non-service provision context. Patients or next of kin were not asked to provide written consent both because of literacy limitations and to reduce the burden on women during L&D. Verbal consent was recorded in the QoC Assessment data entry applications; each module of questions noted that provider and patient (or next of kin) consent was required before items in that module could be completed. Consent procedures were described in research plans submitted to and approved by the aforementioned IRBs. The names of individual patients and providers were not collected during service observations. The quantitative analyses reported in this study were conducted using secondary data without identifiers.
Deliveries observed across admission, active labor, and immediately postpartum were retained in analysis. This resulted in the inclusion of approximately two-thirds of observed deliveries from Kenya and Madagascar (626 and 347, respectively) but only 39–40% of deliveries in Tanzania/Zanzibar (706 in Round 1, and 558 in Round 2). However, there were almost no significant differences between the full sample and the analytic sample, in terms of women’s characteristics or provider and facility type . Ultimately, approximately half the deliveries observed across the QoC Assessments were included in analysis – 1115 of 2237 deliveries across 310 health facilities. This is identical to the sample used in our earlier study to develop a comprehensive QoPIIPC index .
Table 2 provides illustrative results on validation benchmarks for both indices, based on the Tanzania Round 1 delivery observation data. The 13 items in the delivery-only index represented 3 of the 5 consensus QoPIIPC dimensions: technical quality, screening and monitoring, and interpersonal care. This is fewer than the 4 dimensions represented in the comprehensive index because both items for infection prevention were eliminated by restriction to the time of delivery. Five of the items for screening, monitoring, and the readiness to take action in case of danger signs were also eliminated in the delivery-only index.
The delivery-only index score showed a statistically significant association with the total QoC score across all country samples, with an increase of 2.80 to 3.09 points in the total score with each one-point increase in the index score. This association indicates that performing one additional intervention included as an item in the delivery-only index was associated with performance of several additional best-practice interventions during the full episode of L&D care.
An increasing delivery-only index score was associated with significantly increased odds of being in the good performance category for total QoC, whether defined absolutely or relatively. This finding was consistent across countries. Similarly, an increasing index score was associated with significantly decreased odds of being in the poor performance category for total QoC (see Table 2 for illustrative results), across countries. The delivery-only index showed moderate to excellent ability across countries to distinguish between good and poor performance. AUROCs ranged from 0.913 to 0.927 in Kenya, from 0.877 to 0.931 in Madagascar, from 0.900 to 0.924 in Tanzania Round 1, and from 0.806 to 0.833 in Tanzania Round 2. AUROCs were generally lower for classifying cases into the poor performance category. Figure 1 describes AUROCs for identification of delivery cases in the relative good performance group (top 25% of the total QoC score distribution). The results indicate that, for instance, if two deliveries were randomly drawn from the Tanzania Round 1 sample, in 92% of these pairs, the delivery-only index would correctly classify care quality, i.e., the case with the index score would be in the good performance group.
Figure 2 shows the frequency with which delivery-only index items were performed across countries. Ceiling or floor effects were not observed in the distribution of index scores. Across countries, 1–2 items were performed correctly in under 30% of cases, and 1–3 items were performed correctly in over 90% of cases.
The delivery-only index performed well on most measures of content and criterion validity. However, comparison with the comprehensive QoPIIPC index (see Tables 2 and 3) showed that the magnitude of the association with the total QoC score and the ability to distinguish poorly and well-performed deliveries were attenuated for the delivery-only index. Figure 3 compares the AUROCs for both indices, indicating the stronger ability of the comprehensive QoPIIPC index to classify deliveries as well or poorly performed. While statistically significant across most comparisons, this difference was larger in Madagascar and Tanzania Round 2. Based on all likelihood ratio tests comparing linear and logistic regression models of the relation between the index score and total QoC score, the comprehensive QoPIIPC index also fit the data better than the delivery-only index.
Notably, the delivery-only index performed better than the comprehensive QoPIIPC index on several validation benchmarks in some or all countries, including: having fewer items with no statistically significant association with the total QoC score, a better range of frequency with which index items were performed (fewer “easy” items and more “difficult” items), and a greater coefficient of variation.
The predicted probabilities of being in the relative (top 25% of the total QoC score distribution) and absolute (≥80% of possible items performed correctly) good performance group at each value of the delivery-only index score are provided in Table 4, using Tanzania Round 1 data. For example, the probability of being in the relative good performance group is just 4% at the mean delivery-only index score (7). There is a substantial increase in the likelihood of good performance with each one-point increase in the index score above this mean. These patterns are comparable to those in the predicted probabilities of good performance at each level of the comprehensive QoPIIPC index score, as reported previously .
This study compared a previously validated comprehensive index measuring intrapartum and immediate postpartum care process quality with a shorter index of items that can be assessed at or immediately after delivery, including ENC. Content and criterion validation of the 13-item index composed of “delivery-only” items supported its utility as a quality assessment measure. The comprehensive QoPIIPC index developed earlier represents more dimensions of QoPIIPC and appears to be a superior tool for classifying deliveries as poorly or well-performed. However, the delivery-only index represents a more parsimonious list of items and avoids several that are performed nearly universally. The delivery-only index is a robust and more feasible option for quality assessment in settings where complete episodes of L&D care cannot be observed due to resource constraints.
Limitations and strengths
This study faced limitations related to the QoC Assessment data analyzed, such as a potential Hawthorne effect, lack of generalizability to facilities with a lower-volume of deliveries, and restriction of data to routine L&D/ENC interventions. These limitations have been reported in depth elsewhere . However, considering the resources and effort required to observe L&D care even with the most efficient tools, it may be appropriate for the use of the delivery-only index to be restricted to higher-volume facilities. Additionally, the QoC Assessments were conducted across a diverse sample of facilities, from rural health centers to referral hospitals, possibly reducing the effect of non-random sampling on generalizability.
This study has a number of important strengths. Much research on obstetric QoC and its potential measurement has relied on routine data sources that are not designed for or suitable for quality assessment. Observations, such as those conducted in the QoC Assessments, may provide improvements in completeness, accuracy, and specificity [29,30,31]. This study is also one of very few to include validation of quality measures with empirical data from low income country settings, and the only one to focus on the time of delivery.
Program and research implications
The delivery-only index may reduce the burden of observation sufficiently to enable periodic L&D care quality assessment at the facility level, complementing other clinical supervision and records-based monitoring activities. All users must be oriented to the fact that this tool is not intended to be a comprehensive clinical guideline, checklist, or job aid; however, it can be used to provide valid information on care quality through targeted observation and may address gaps that have been identified through global MNC research and monitoring.
As greater attention is paid to the fact that QoC must improve if the global targets for maternal and neonatal mortality reduction are to be achieved, understanding of the construct is evolving . A recent study by Souza et al. concludes that coverage with life-saving interventions may be insufficient to reduce maternal deaths without improvements in overall care quality . This nuanced understanding of QoPIIPC suggests that observation of care may be crucial in quality assurance and improvement (QA/QI). Key aspects of QoPIIPC, such as provider-patient interactions and provider vigilance of danger signs, are not captured in medical records and registers. Tools that bring observation out of the research setting and into programs are necessary to address gaps in knowledge about routine L&D care quality, particularly as most assessment of QoPIIPC has focused on adverse events such as deaths and near misses [50,51,52].
The need for valid quality assessment becomes particularly urgent as incentives to women for facility delivery, removal of user fees, performance-based financing for providers and health facilities, and other trends increase the use of facility-based L&D care [18,19,20, 53]. In-depth verification of QoC contributes to QA/QI initiatives and is essential when providers and facilities are paid for performance [54, 55]. Anecdotal and program evidence suggests that when specific actions are emphasized in policy, their performance may be affected in ways that cannot be detected through record review. For example, partographs may be filled in after labor if completed partographs are rewarded in performance-based financing programs . An improved ability to efficiently measure QoPIIPC may also strengthen the validity of future research on quality assurance and improvement within maternal and newborn health services.
The quality measure evaluated in this study provides a new tool that can be used to evaluate routine L&D care in health facilities more easily using clinical observation. There is increased global attention to the care provided to mothers and newborns at the time of delivery, the focus of this index. This index complements and addresses gaps in existing tools and may improve knowledge regarding the quality of MNC in sub-Saharan Africa and other low income country settings. Expanded quality assessment using validated tools may help programs target QI activities and promote further reductions in maternal and neonatal mortality and morbidity.
Area under the receiver operating characteristic curve
Emergency obstetric and newborn care
Essential newborn care
Labor and delivery
Maternal and Child Health Integrated Program
Maternal and newborn care
Quality assurance/quality improvement
Quality of care
Quality of the process of intrapartum and immediate postpartum care
United States Agency for International Development
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The authors wish to acknowledge the important contributions of the Maternal and Child Health Integration Program (MCHIP) QoC Study Group, whose members include: Gloriose Abayisenga, Paul Ametepi, Linda Bartlett, Eva Bazant, Joseph de Graft-Johnson, Mary Drake, Ashebir Getachew, Patricia Gomez, Frank Kagema, Pamela Lynam, Christina Lulu Makene, Marya Plotkin, Barbara Rawlins, James Ricca, Heather Rosen, Jean Pierre Rakotovao, and Maria Vaz. These individuals conducted the QoC Assessment surveys described in the paper. The authors also wish thank Deborah Armbruster at USAID and Sheena Currie and Jeffrey Smith at MCHIP for their leadership and guidance, and for reviewing this manuscript. We would also like to thank Kitty Chan and Luke Mullany at the Johns Hopkins Bloomberg School of Public Health for their contributions to the analysis plan.
This study was supported by USAID (www.usaid.gov), through the MCHIP project (www.mchip.net), USAID Award #GHS-A-00-08-00002-000. Open access publication of this paper was supported through the USAID Associate Cooperative Agreement AID‐OAA‐A14‐00013. The funder had no role in study design, data collection and analysis, or decision to publish. Representatives of the funder were provided with a draft of this manuscript before submission for publication.
Availability of data and materials
The data used in the secondary analysis described in this study were obtained from the Maternal and Child Integrated Program (MCHIP) implemented by Jhpiego and supported by the United States Agency for International Development (USAID). MCHIP conducted the Quality of Care (QoC) Assessment surveys described in the manuscript. The authors cannot make datasets available directly as manuscript supplemental files because the data were collected under an IRB-approved study protocol that included protection of the confidentiality of study facilities and providers, as described in the informed consent forms read and signed by facility in-charges. The datasets contain facility identifiers and names. However, datasets with facility names and other confidential information redacted can be made available through direct communication with QoC Assessment study team. Interested readers can contact Dr. Jim Ricca at email@example.com.
Ethics approval and consent to participate
The QoC Assessment protocol was reviewed and approved by ethical review boards in each country where the survey was conducted. For the data reported here, these boards were: the Kenya Medical Research Institute Institutional Review Board (IRB) in Kenya; the Ministry of Health Ethical Committee in Madagascar; and the National Institute of Medical Research Institutional Review Board IRB in Tanzania. The Johns Hopkins Bloomberg School of Public Health IRB ruled the protocol for the QoC Assessment study across all countries exempt from review (reference number 00002549). Written informed consent was obtained from facility directors prior to data collection during the QoC Assessment study. Verbal informed consent was obtained from providers and patients or patients’ next of kin during data collection due to literacy limitations and to reduce the burden on patients. Consent procedures were described in research plans submitted to the IRBs noted above.
Consent for publication
The authors declare that they have no competing interests.
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