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. 2018 May 31;7(7):859–869. doi: 10.1530/EC-18-0076

Table 1.

Characteristics of participants in each subgroup (n = 1941).

Characteristic Mean (s.d.)/n (%) No. missing
GDM + PCOS (n = 105) GDM + non-PCOS (n = 909) Non-GDM + PCOS (n = 69) Controls (n = 858)
Participants’ birtha
 Birth weight (g) 3323 (570) 3392 (559) 3511 (474) 3471 (505) 7/77/8/58
s.d. score for birth weight −0.35 (1.16) −0.14 (1.07) 0.04 (1.00) 0.02 (1.02) 20/192/14/167
 Gestational age (weeks) 39.7 (1.7) 39.7 (2.2) 40.3 (1.5) 39.8 (1.8) 17/194/11/159
  <37 + 0 weeks (%) 4 (4.5) 46 (6.4) 0 23 (3.3) 17/194/11/159
 SGAb (%) 6 (7.1) 24 (3.3) 1 (1.8) 15 (2.2) 20/192/14/167
 LGAc (%) 0 21 (2.9) 1 (1.8) 19 (2.7) 20/192/14/167
Participants’ educational attainmenta
 Basic or less (%) 4 (3.8) 62 (6.8) 1 (1.4) 41 (4.8)
 Secondary (%) 39 (37.1) 437 (48.1) 27 (39.1) 394 (45.9)
 Lower-level tertiary (%) 45 (42.9) 223 (24.5) 19 (27.5) 210 (24.5)
 Upper-level tertiary (%) 17 (16.2) 187 (20.6) 22 (31.9) 213 (24.8)
Participants’ current characteristics
 Age at delivery (years) 32.0 (5.0) 31.5 (5.4) 29.9 (3.8) 28.8 (5.1)
 Height (cm) 164.9 (5.9) 164.7 (5.8) 166.2 (6.1) 165.3 (5.9)
 Weight (kg) 80.8 (18.6) 75.9 (17.0) 67.8 (14.9) 64.7 (12.3)
 Pre-pregnancy BMI (kg/m2) 29.7 (6.6) 27.9 (5.9) 24.5 (5.1) 23.6 (4.1)
 Smoking habit, n (%) 1/2/0/1
  Before and during pregnancy (%) 16 (15.4) 144 (15.9) 13 (18.8) 127 (14.8)
  Before but not during pregnancy (%) 10 (9.6) 137 (15.1) 8 (11.6) 122 (14.2)
  Not at all (%) 78 (75.0) 623 (68.7) 48 (69.6) 607 (70.8)
 Number of previous pregnancies
  0 (%) 35 (33.3) 272 (29.9) 29 (42.0) 341 (39.7)
  1 (%) 23 (21.9) 246 (27.1) 23 (33.3) 216 (25.2)
  2 (%) 17 (16.2) 153 (16.8) 5 (7.2) 123 (14.3)
  3 or more (%) 30 (28.6) 238 (26.2) 12 (17.4) 178 (20.8)
 Number of previous deliveries
  0 (%) 44 (41.9) 388 (42.7) 38 (55.1) 433 (50.5)
  1 (%) 40 (38.1) 254 (27.9) 18 (26.1) 212 (24.7)
  2 (%) 11 (10.5) 118 (13.0) 8 (11.6) 102 (11.9)
  3 or more (%) 10 (9.5) 149 (16.4) 5 (7.2) 111 (12.9)
 Insulin-treated GDM, n (%) 27 (26.0) 149 (16.8) 1/21
 Metformin-treated GDM, n (%) 4 (3.8) 21 (2.4) 1/21
 Diet-treated GDM, n (%) 73 (70.2) 718 (83.2) 1/21

aAs reported by the participants at recruitment in this study; bsmall for gestational age (<−2 s.d.); clarge for gestational age (>+2 s.d.).

GDM, gestational diabetes mellitus; PCOS, polycystic ovary syndrome; s.d., standard deviation.