Table 1. Overall demographics and infertility description of the study cohort (n=5250).
Demographics Female Male
Age (years) 34.31 (19-40) 36.1 (20-59)
BMI (Kg/m2)
Underweight
Normal weight
Overweight
Obese
Missing/wrong data
23.74 (15-41)
195 (3.7%)
3275 (62.4)
1258 (24%)
516 (9.8%)
6 (0.1%)
26.08 (17-48)
31 (0.6%)
1747 (33.3%)
2499 (47.6%)
728 (13.9%)
245 (4.7%)
Ethnicity
White
Non-white

5128 (97.7%)
122 (2.3%)

5151 (98.1%)
99 (1.9%)
Tobacco use
Present
Past
None

816 (15.5%)
283 (5.4%)
4151 (79.1%)

1543 (29.4%)
445 (8.4%)
3262 (62.1%)
Infertility description
Duration in months/years 45.88 (0-180)/ 3.8 (0-15)
Primary
Secondary (couple with children)
4899 (93.3%)
351 (6.7%)
Etiology
Male factor
Female factor(s)
Female and male factors
Endometriosis
Idiopathic
Others
Missing data

1643 (31.3%)
1466 (27.9%)
1084 (20.6%)
284 (5.4%)
722 (13.8%)
35 (0.7%)
16 (0.3%)