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Table 1 Prevalence and socio-demographic factors associated with prenatal supplement intake in a representative sample of pregnant women in Colombia

From: Use of dietary supplements by pregnant women in Colombia

Characteristics Prenatal supplement intake
Yes No
n (%*) 95% CI** n (%*) 95% CI**
Total (n = 1865) 1123 (68.6) (67.2–69.8) 742 (31.4) (29.7–33.0)
Age (years)
 13 to 17 (n = 249) 142 (65.6) (62.0–68.2) 107 (34.4) (30.0–37.5)
 18 to 29 (n = 1204) 727 (67.4) (65.8–68.7) 477 (32.6) (30.6–34.5)
 30 to 49 (n = 412) 254 (74.0) (71.6–75.8) 158 (26.0) (22.9–28.5)
Trimester of pregnancy
 First (n = 292) 96 (41.3) (36.6–44.8) 196 (58.7) (55.8–60.8)
 Second (n = 978) 602 (69.3) (67.7–70.6) 376 (30.7) (28.5–32.7)
 Third (n = 595) 425 (79.6) (78.1–80.8) 170 (20.4) (17.8–22.6)
Education level
 Elementary or secondary (n = 1537) 864 (64.6) (63.0–66.0) 673 (35.4) (33.6–37.0)
 University or postgraduate (n = 328) 259 (82.0) (80.6–83.1) 69 (18.0) (14.0–21.0)
Socioeconomic level
 Level I (n = 1088) 561 (61.2) (59.2–62.9) 527 (38.8) (36.8–40.6)
 Level II a (n = 176) 106 (62.3) (58.3–65.0) 70 (37.7) (32.1–41.6)
 Level III a (n = 136) 98 (77.1) (73.6–79.4) 38 (22.9) (17.2–26.6)
 Level IV or more (n = 465) 358 (79.5) (78.1–80.6) 107 (20.5) (17.5–23.0)
Geographic area
 Atlantic (North) (n = 438) 302 (71.7) (69.8–73.3) 136 (28.3) (25.6–30.5)
 Eastern (n = 258) 179 (69.2) (66.9–71.0) 79 (30.8) (26.7–33.9)
 Central (n = 381) 264 (73.8) (71.5–75.5) 117 (26.2) (23.2–28.6)
 Pacific (West) (n = 246) 128 (59.0) (55.6–61.6) 118 (41.0) (37.8–43.5)
 Bogotá a (n = 98) 68 (69.4) (65.9–71.8) 30 (30.6) (24.4–34.7)
 National territories (South) (n = 444) 182 (49.8) (46.3–52.6) 262 (50.2) (47.0–52.7)
Urbanicity
 Urban (n = 1186) 804 (71.0) (69.8–72.2) 382 (29.0) (26.8–30.9)
 Rural (n = 679) 319 (47.0) (58.9–64.1) 360 (53.0) (36.2–39.8)
Ethnic group
 Indigenous (n = 272) 95 (50.2) (45.1–53.6) 177 (49.8) (44.1–53.6)
 Black or Afro-Colombian (n = 202) 109 (63.6) (59.4–66-6) 93 (36.4) (33.2–38.6)
 Others (n = 1380) 908 (70.3) (69.0–71.5) 472 (29.7) (27.8–31.4)
  1. *All women analyzed by ethnic group were n = 1854. Another two belonged to “Raizal del archipiélago”, but they were not analyzed because this group did not have a representative sample
  2. **It is not correct to calculate the percentages from the “n” in this table. These calculations were taken from the weight of the values ​​given to each subject
  3. data from 1854 participants
  4. a Since the coefficient of variation is more than 20% of the deficiency prevalence, the variation should be interpreted with caution