Table 1 Baseline characteristics of participants
Characteristics | Total (n = 3542) | Fertility (n = 3113) | Infertility (n = 429) | P value |
|---|---|---|---|---|
Demography | ||||
BMI | 29.51(0.20) | 29.14(0.22) | 32.12(0.67) | < 0.001 |
WC | 96.02(0.48) | 95.01(0.51) | 103.17(1.41) | < 0.001 |
Age, years | 32.09(0.20) | 31.66(0.20) | 35.13(0.44) | < 0.001 |
PIR | 2.70(0.06) | 2.66(0.06) | 2.93(0.11) | 0.016 |
MHO-BMI | < 0.001 | |||
MHN | 220(6.21) | 195(6.48) | 25(4.93) | |
MHOW | 252(7.11) | 233(6.72) | 19(3.73) | |
MHO | 433(12.22) | 363(10.87) | 70(15.39) | |
MUN | 928(26.2) | 838(30.25) | 90(22.28) | |
MUOW | 632(17.84) | 571(18.94) | 61(15.12) | |
MUO | 1077(30.41) | 913(26.74) | 164(38.54) | |
Race | 0.434 | |||
White | 1123(31.71) | 973(55.80) | 150(59.35) | |
Black | 850(24) | 751(13.50) | 99(13.10) | |
Other Race | 1569(44.3) | 1389(30.69) | 180(27.55) | |
Education level | 0.905 | |||
Less than high school | 695(19.62) | 612(18.93) | 83(18.85) | < 0.001 |
High school | 538(15.19) | 476(11.04) | 62(10.31) | < 0.001 |
More than high school | 2309(65.19) | 2025(70.03) | 284(70.84) | < 0.001 |
Drinking status | 0.199 | |||
Yes | 2131(60.16) | 1881(68.27) | 250(64.73) | |
No | 1411(39.84) | 1232(31.73) | 179(35.27) | |
Smoking status | 0.146 | |||
Current smoker | 612(17.28) | 524(17.86) | 88(18.89) | |
Former smoker | 400(11.29) | 339(12.84) | 61(16.59) | |
Never smoker | 2530(71.43) | 2250(69.30) | 280(64.52) | |
Physical activity | 0.161 | |||
High intensity physical | 1526(43.08) | 1362(47.59) | 164(41.76) | |
Low intensity physical activity | 1063(30.01) | 925(29.66) | 138(32.48) | |
No physical activity | 953(26.91) | 826(22.75) | 127(25.75) | |
Irregular Periods | 250(7.058) | 222(7.505) | 28(9.499) | 0.359 |
Married or Living with partner | 2032(57.37) | 1719(57.95) | 313(77.21) | < 0.001 |
Ever pregnant | 2580(72.84) | 2224(66.10) | 356(84.26) | < 0.001 |