Iris de Nie

42 C H A P T E R 3 Table 1. Baseline characteristics of study cohort (n=260 trans women) n Mean (SD) or Median (IQR) Percentage (n) Dutch reference values* Age at time of fertility preservation (years) 260 24 (IQR 20.0-29.5) Testosterone (nmol/L) 181 19.1 (SD 6.7) 9 – 30 Estradiol (pmol/L) 179 87.4 (SD 24.7) 12 – 177 LH (U/L) 177 3.5 (SD 2.1) 1 – 8.4 FSH (U/L) 18 4.1 (SD 4.0) 1 – 10.5 BMI (kg/m 2 ) Underweight: < 18.5 Normal weight: 18.5-25.0 Overweight: > 25.0 200 22.7 (SD 3.8) 9.0 % (18) 65.5 % (131) 25.5 % (51) 3.9 % 63.6 % 32.5 % Alcohol Non drinker Current drinker Units/week 214 100 2.0 (IQR 1.0-4.0) 44.4 % (95) 55.6 % (119) 14.6 % 85.4 % 9.1 Smoking Never Previous smoker Current smoker Cig/day 121 45 10.0 (IQR 5.0-15.0) 52.9 % (64) 9.9 % (12) 37.2 % (45) 57.1 % 12.7 % 30.2 % 6.9 Cannabis Never Weekly Sporadically 170 84.1 % (143) 5.9 % (10) 10.0 % (17) 9.9 % 19.0 % Previous hormone use Yes No 260 4.6 % (12) 95.4 % (248) History of anxiety or depression Yes No 260 13.1 % (34) 86.9 % (226) History of inguinal hernia or cryptorchidism Yes No 260 5.0 % (13) 95.0 % (247) *data on BMI,alcohol consumption,smoking and cannabis use are obtained from the online database of Statistics Netherlands 74 . SD: standard deviation, IQR: interquartile range.