Mean (±SD) and median age, and age range (IQR) at referral to the GIDS, at first appointment at the GIDS and at referral to endocrinology by birth registered sex (assigned male at birth or assigned female at birth) for young people referred to endocrinology in 2017–2019 (cohort 1), and a separate breakdown for those referred to endocrinology in 2017–2018 (cohort 2)
| Age at referral to the GIDS | Age first appointment at the GIDS | Age at referral to endocrinology | |||||||
| Mean age (SD) | Median age | Range (IQR) | Mean age (SD) | Median age | Range (IQR) | Mean age (SD) | Median age | Range (IQR) | |
| 2017–2019 | |||||||||
| Assigned male at birth (n=227) | 13.52 (2.35) | 14.16 | 4.85–16.84 (2.67) | 14.20 (2.44) | 14.89 | 5.06–17.66 (2.71) | 15.42 (1.75) | 15.93 | 10.71–18.73 (2.35) |
| Assigned female at birth (n=441) | 13.56 (1.88) | 14.04 | 6.06–16.49 (2.05) | 14.25 (1.93) | 14.88 | 6.41–17.40 (2.07) | 15.36 (1.50) | 15.79 | 10.10–17.76 (1.73) |
| 2017–2018 | |||||||||
| Assigned male at birth (n=154) | 13.87 (2.09) | 14.36 | 6.31–16.84 (2.13) | 14.48 (2.16) | 15.02 | 6.62–17.46 (2.34) | 15.47 (1.72) | 15.98 | 10.71–18.73 (2.12) |
| Assigned female at birth (n=285) | 13.79 (1.76) | 14.29 | 6.06–16.49 (1.97) | 14.38 (1.78) | 14.92 | 6.41–17.02 (1.99) | 15.32 (1.48) | 15.73 | 10.10–17.64 (1.81) |
GIDS, Gender Identity Development Service.