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Table 1 Characteristics of study participants at Survey 6 (age 34–39 years) by PCOS status

From: Group-based developmental BMI trajectories, polycystic ovary syndrome, and gestational diabetes: a community-based longitudinal study

Characteristics Level N (%) N (%) N (%) P valuea
Whole group PCOS non-PCOS
N   8009 662 7326  
Age, mean (SD)   36.7 (1.48) 36.6 (1.43) 36.8 (1.48) 0.001
BMI, mean (SD)   26.4 (6.30) 29.2 (7.86) 26.2 (6.07) <0.001
Educational qualification Year 12 or less 1421 (17.7) 106 (16.0) 1308 (17.9) 0.42
Trade or certificate 2171 (27.1) 194 (29.3) 1973 (26.9)
University/post-graduate 4267 (53.3) 352 (53.2) 3910 (53.4)
Missing 150 (1.87) 10 (1.51) 135 (1.84)  
SEIFA mean (SD)   1015.1 (95.7) 1020.4 (98.3) 1014.6 (95.3) 0.14
Country of birth Asian 117 (1.46) 14 (2.11) 103 (1.41) 0.15
Australia/Other 7840 (97.9) 644 (97.3) 7175 (97.9)
Missing 52 (0.65) 4 (0.60) 48 (0.66)
Smoking status Non-smoker 4854 (60.6) 415 (62.7) 4432 (60.5) 0.36
Past smoker 2167 (27.1) 180 (27.2) 1980 (27.0)  
Current smoker 928 (11.6) 63 (9.52) 862 (11.8)  
Missing 60 (0.75) 4 (0.60) 52 (0.71)  
Prevalence of GDM   460/5802 (7.93) 63/448 (14.1) 396/5339 (7.42) <0.001
Prevalence of PCOS   662/7988 (8.29)    
  1. aχ2 or t test used to compare PCOS and non-PCOS groups as appropriate
  2. BMI body mass index, GDM gestational diabetes, PCOS polycystic ovary syndrome, SD standard deviation, SEIFA socioeconomic indexes for areas