Pubertal stage | N | Chronological age (yr) | Bone age TWII (yr) | 17β-estradiol (pmol/L) Median (95% confidence interval) | |||||
---|---|---|---|---|---|---|---|---|---|
0200 h | 0600 h | 1000 h | 1400 h | 1800 h | 2200 h | ||||
Pre | 16 | 9.9 (7.2 to 12.9) | 9.1 (6.2 to 11.6) | <4 (<4 – 5) | <4 (<4 – 9) | <4 (<4 – 6) | <4 (<4 – 5) | <4 (<4) | <4 (<4 – 5) |
Early | 17 | 12.4 (9.8 to 13.8) | 11.7 (9.7 to 13.1) | 5 (5 – 7) | 6 (5 – 9) | 5 (<4 – 8) | 6 (<4 – 8) | 6 (<4 – 10) | 4 (<4 – 9) |
Mid | 10 | 13.5 (11.2 to 14.1) | 13.0 (10.7 to 13.5) | 7e (<4 – 12) | 10bd (6 – 17) | 9e (<4 – 13) | 7e (5 – 14) | 7e (5 – 12) | 7 (5 – 15) |
Late-1 | 10 | 15.2 (13.0 to 16.6) | 15.2 (13.8 to 16.8) | 20ace (15 – 30) | 27bcd (21 – 39) | 25bcd (19 – 38) | 21ace (15 – 34) | 18ae (9 – 35) | 15ae (11 – 26) |
Late-2 | 9 | 17.2 (16.6 to 18.6) | 18.0 (15.4 to 18.0) | 28ae (21 – 36) | 40cd (24 – 58) | 34cd (27 – 63) | 31ae (17 – 46) | 32 (22 – 42) | 27ae (16 – 36) |