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Table 1 Characteristics for participants in the total trial sample and in the sub-samples providing EPDS data at end-of-pregnancy and 6 months postnatally

From: Physical activity for antenatal and postnatal depression in women attempting to quit smoking: randomised controlled trial

  Total sample n = 784 End-of-pregnancy n = 383 6 months n = 279
  Mean (SD) Mean (SD) Mean (SD)
Age 27.5 (6.3) 27.7 (6.2) 28.1 (6.2)
Age left full-time education 17.7 (2.9) 17.9 (2.8) 18.0 (2.9)
Weight at booking – kg 68.3 (15.2) 68.8(15.4) 68.9 (15.9)
Body Mass Index kg/m2 26.1 (5.3) 26.0 (5.2) 26.1 (5.5)
Gestational age – wk 15.6 (3.3) 15.3 (3.2) 15.4 (3.1)
  Median (IQR) Median (IQR) Median (IQR)
Fagerström Test of Cigarette Dependence score 4.0 (2.0-5.0) 4.0 (2.0-5.0) 4.0 (2.0-5.0)
EPDS score at baseline 7.0 (3.5-11.0) 8.0 (4.0-12.0) 7.0 (4.0-11.0)
Self-report of weekly MVPA 210.0 210.0 210.0
– mins (at baseline) (130.0-355.0) (125.0-330) (120.0-340.0)
Self-report of weekly MVPA 150.0 150.0 140.0
– mins (at EOP)a (75.0-240.0) (75.0-240.0) (70.0-240.0)
Self-report of weekly MVPA 162.5 165.0 155.0
– mins (at 6 months follow up) (60.0-300.0) (80.0-310.0) (60.0-300.0)
Treatment sessions attendeda 3 (2-6) 6 (3-7) 5(3-7)
  n (%) n (%) n (%)
Allocation to physical Activity group 392 (50) 189 (49) 140 (52)
IMDb quartiles 3 or 4 555 (74) 259 (71) 191 (72)
Married or living with partner 451 (58) 224 (59) 181 (65)
Caucasian 607 (77) 301 (79) 226 (81)
Professional/managerial occupation 99 (13) 48 (13) 39 (14)
EPDS score at baseline ≥ 13 143 (18) 51 (13) 29 (10)
Thought of harming oneself (EPDS) 20 (3) 11 (3) 7 (3)
Self-report of ≥ 150 mins week MVPA (baseline) 548 (70) 266 (70) 185 (66)
Parity (range = 0 to 5)
 0-1 606 (78) 301 (79) 220 (79)
 2-3 155 (20) 75 (20) 54 (19)
  ≥ 4 21 (3) 7 (2) 5 (2)
 Takes alcohol ≥ twice a week 11 (1) 6 (2) 5 (2)
 Consumes ≥ 3 alcoholic drinks on a drinking day 17 (10) 7 (8) 6 (10)
  1. EPDS Edinburgh Post-natal Depression Scale, EOP End of pregnancy, IMD Index of Multiple Deprivation, MVPA Moderate and vigorous physical activity. aNon-baseline measure bN = 752 as there were 12 missing postcodes and 20 invalid post codes