Table 1 Baseline characteristics of study subjects according to the age-specific anti-Mullerian hormone (AMH) quartiles
Variable | 1st quartile n = 203 | 2nd quartile n = 181 | 3rd quartile n = 201 | 4th quartile n = 190 | P- value |
|---|---|---|---|---|---|
Age(years) | 38.3 ± 6.7 | 37.3 ± 6.5 | 36.4 ± 6.8 | 37.2 ± 6.7 | 0.42 |
BMI (kg/m2) | 26.8 ± 4.1 | 26.8 ± 4.4 | 27.1 ± 4.4 | 27.4 ± 4.5 | 0.44 |
WC (cm) | 85.3 ± 9.8 | 84.7 ± 11.3 | 85.4 ± 10.8 | 86.0 ± 11.2 | 0.70 |
HC (cm) | 104.0 ± 7.9 | 104.1 ± 8.5 | 104.3 ± 9.1 | 104.6 ± 9.0 | 0.91 |
WHR | 0.816 ± 0.6 | 0.810 ± 0.7 | 0.816 ± 0.6 | 0.820 ± 0.7 | 0.64 |
SBP (mm/Hg) | 113.3 ± 13.9 | 108.9 ± 12.9 | 111.9 ± 14.9 | 111.4 ± 12.4 | 0.01ª |
DBP (mm/Hg) | 75.3 ± 9.92 | 73.9 ± 9.2 | 75.3 ± 10.1 | 75.2 ± 8.9 | 0.38 |
Parity (n) | 3.3 ± 1.7 | 3.0 ± 1.4 | 3.1 ± 1.6 | 3.0 ± 1.7 | 0.73 |
FT4 (pmol/L) | 14.67 ± 2.13 | 23.94 ± 4.50 | 21.36 ± 2.57 | 21.11 ± 4.50 | 0.36 |
TSH (mu/L) | 2.05 (1.03,3.13) | 1.86 (1.06,3.72) | 1.66 (1.00,2.75) | 1.64 (0.92,2.82) | 0.26 |
TPO Ab (IU/ml) | 7.85 (3.69,23.3) | 5.59 (3.10,18.66) | 5.14 (3.01,11.35) | 6.32 (3.37,13.89) | 0.02ª |
Smoking Status | |||||
 Never Smokers n (%) | 7 (3.4%) | 8 (4.4%) | 6 (3.0%) | 8 (4.2%) | 0.87 |
 Ever Smokers n (%) | 196(96.6%) | 173(95.6%) | 195(97%) | 182(95.8%) |  |
Educational Level | |||||
 Upper diploma n (%) | 21(10.6%) | 24(13.5%) | 23(11.6%) | 19(10.0%) | 0.73 |
 Diploma/Under diploma n(%) | 182(89.4%) | 157(86.5%) | 178(88.4%) | 171(90%) |  |