Table 1.
Baseline Clinical Characteristics and Reproductive Hormones
PCOS-d (n = 48) | OB-g (n = 30) | NW-g (n = 22) | P | PCOS-d vs OB-g | PCOS-d vs NW-g | OB-g vs NW-g | |
---|---|---|---|---|---|---|---|
Age, y | 9.7 ± 1.3a (8.0–12.3) | 10.3 ± 1.1 (8.3–12.3) | 10.3 ± 1.1 (8.3–12.7) | 0.05 | 0.09 | 0.14 | 0.99 |
BMI percentile | 80 ± 23 (16–99) | 99 ± 1 (97–99) | 50 ± 19 (19–84) | NA | NA | NA | NA |
BMI z score | 1.1 ± 0.9 (−1.0 to 2.5) | 2.4 ± 0.2 (1.9–2.9) | 0.0 ± 0.5 (−0.9 to 1.0) | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
Tanner breast stage | 44% Ib | 33% I | 32% I | 0.01c | NA | NA | NA |
40% II | 13% II | 27% II | |||||
16% III | 54% III | 41% III | |||||
Tanner pubic hair stage | 67% I | 33% I | 32% I | 0.01c | NA | NA | NA |
29% II | 33% II | 45% II | |||||
2% III | 33% III | 18% III | |||||
2% IV | 5% IV | ||||||
Total T,d ng/dL | 8 ± 6 (1–30) | 9 ± 6 (1–22) | 9 ± 8 (2–33) | 0.53 | NA | NA | NA |
SHBG,e nmol/L | 54 ± 31 (9–180) | 22 ± 10 (7–54) | 71 ± 22 (38–121) | <0.0001 | <0.0001 | 0.005 | <0.0001 |
Free T,f ng/dL | 0.13 ± 0.12 (0.01–0.58) | 0.22 ± 0.15 (0.03–0.58) | 0.10 ± 0.10 (0.02–0.40) | 0.0002 | 0.19 | 0.01 | 0.0001 |
AMH,g ng/mL | 3.28 ± 2.34 (0.13–13.00) | 1.22 ± 0.72 (0.20–3.03) | 2.08 ± 0.94 (0.79–4.52) | <0.0001 | <0.0001 | 0.10 | 0.07 |
DHEAS,h ng/mL | 493 ± 358 (91–1730) | 635 ± 349 (179–1555) | 549 ± 362 (145–1770) | 0.34 | NA | NA | NA |
Androstenedione,i ng/mL | 0.47 ± 0.37 (0.13–1.27) | 0.57 ± 0.37 (0.11–1.77) | 0.50 ± 0.41 (0.11–1.78) | 0.52 | NA | NA | NA |
Estradiol,j pg/mL | 13 ± 11 (4–59) | 20 ± 14 (7–76) | 14 ± 10 (5–43) | 0.09 | NA | NA | NA |
P values listed from analysis of covariance correcting for age and Tanner breast stage unless noted otherwise. BMI percentiles reported for descriptive purposes only. Statistical assessment for differences between the groups performed only on BMI z score. To convert DHEAS from ng/mL to nmol/L, multiply by 2.714; androstenedione from ng/dL to nmol/L, multiply by 0.0349; and estradiol from pg/mL to pmol/L, multiply by 3.671.
Abbreviation: NA, not applicable.
Mean ± SD (range).
Percentage of subjects included in each group is noted.
The categorical variables Tanner breast and pubic hair stages were analyzed by Fisher’s exact test.
Total T levels missing in three PCOS-d.
SHBG levels missing in two PCOS-d.
Free T levels missing in four PCOS-d.
AMH levels missing in nine PCOS-d, seven OB-g, and four NW-g.
DHEAS levels missing in six PCOS-d and two NW-g.
Androstenedione levels missing in 28 PCOS-d.
Estradiol levels missing in 12 PCOS-d, six OB-g, and four NW-g.