| Variable | Item | Mean | ±sd | Freq. | % | Age (years) | BMI (Kg/m2) | |||||||||
| <40 | ≥40 | 18.5 - 24.9 | 25.0 - 29.9 | ≥30 | ||||||||||||
| Freq. | % | Freq. | % | Freq. | % | Freq. | % | Freq. | % | |||||||
| History of infertility | Yes | - |
| 91 | 95.8 | 39 | 100.0 | 52 | 92.9 | 29 | 100.0 | 37 | 94.9 | 25 | 92.6 | |
| No | - |
| 4 | 4.2 | 0 | 0.0 | 4 | 7.1 | 0 | 0.0 | 2 | 5.1 | 2 | 7.4 | ||
| χ2 (P-value) | 2.88 (0.09) | - | 1.51 (0.22) | 2.19 (0.14) | ||||||||||||
| Odds Ratio (95% Confidence Interval) | undefined | - | undefined | undefined | ||||||||||||
| Type of infertility | Primary | - |
| 40 | 46.3 | 22 | 56.4 | 18 | 32.1 | 16 | 55.2 | 15 | 38.5 | 9 | 33.3 | |
| Secondary | - |
| 51 | 53.7 | 17 | 43.6 | 34 | 60.7 | 13 | 44.8 | 22 | 56.4 | 16 | 59.3 | ||
| χ2 (P-value) | 4.25 (0.04) | - | 1.38 (0.24) | 1.95 (0.16) | ||||||||||||
| Odds Ratio (95% Confidence Interval) | 2.44 (1.04, 5.73) | - | 0.55 (0.21, 1.48) | 0.46 (0.15, 1.37) | ||||||||||||
| Years trying to conceive | 0 | 0.0 | 0.0 | 25 | 21.9 | 3 | 7.7 | 6 | 10.7 | 0 | 0.0 | 4 | 10.2 | 5 | 18.5 | |
| 1 - 3 | 2.3 | 0.7 | 31 | 27.2 | 19 | 48.7 | 9 | 16.1 | 8 | 27.6 | 13 | 33.3 | 7 | 25.9 | ||
| 4 - 6 | 5.0 | 0.7 | 21 | 18.4 | 13 | 33.3 | 8 | 14.3 | 11 | 37.9 | 8 | 20.5 | 2 | 7.4 | ||
| 7 - 9 | 7.6 | 0.7 | 16 | 14.0 | 4 | 10.3 | 12 | 21.4 | 4 | 13.8 | 7 | 18.0 | 5 | 18.5 | ||
| ≥10 | 14.2 | 4.8 | 21 | 18.4 | 0 | 0.0 | 21 | 37.5 | 6 | 20.7 | 7 | 18.0 | 8 | 29.6 | ||
| All | 6.2 | 5.3 | 95 | 100.0 | 39 | 41.1 | 56 | 58.2 | 29 | 30.5 | 39 | 41.1 | 27 | 28.4 | ||
| Age | <40 | 3.5 | 2.0 | 39 | 41.1 | - | - | - | - | - | - | - | - | - | - | |
| ≥40 | 8.1 | 6.1 | 56 | 58.2 | - | - | - | - | - | - | - | - | - | - | ||
| BMI | 18.5 - 24.9 | 6.8 | 5.3 | 29 | 30.5 | - | - | - | - | - | - | - | - | - | - | |
| 25.0 - 29.9 | 5.8 | 5.3 | 39 | 41.1 | - | - | - | - | - | - | - | - | - | - | ||
| ≥30 | 6.2 | 5.7 | 27 | 28.4 | - | - | - | - | - | - | - | - | - | - | ||
| Ever fathered a child | Yes | - | - | 34 | 35.8 | 8 | 20.5 | 26 | 46.4 | 5 | 17.2 | 16 | 41.0 | 13 | 48.2 | |
| No | - | - | 61 | 64.2 | 31 | 79.5 | 30 | 53.6 | 24 | 82.8 | 23 | 59.0 | 14 | 51.8 | ||
| χ2 (P-value) | 6.65 (0.01) | - | 4.34 (0.04) | 6.01 (0.01) | ||||||||||||
| Odds Ratio (95% Confidence Interval) | 3.36 (1.31, 8.58) | - | 3.34 (1.05, 10.61) | 4.46 (1.31, 15.16) | ||||||||||||
| Miscarriage in partner | Yes | - | - | 34 | 30.7 | 12 | 30.8 | 22 | 39.3 | 10 | 34.5 | 13 | 33.3 | 11 | 40.7 | |
| No | - | - | 61 | 62.3 | 27 | 69.2 | 34 | 60.7 | 19 | 65.5 | 26 | 66.7 | 16 | 59.3 | ||
| χ2 (P-value) | 0.72 (0.40) | - | 0.01 (0.92) | 0.23 (0.63) | ||||||||||||
| Odds Ratio (95% Confidence Interval) | 1.46 (0.61, 3.46) | - | 0.95 (0.34, 2.69) | 1.31 (0.44, 3.86) | ||||||||||||
| If “yes” how many miscarriages | 1 | - |
| 22 | 64.7 | 9 | 75.0 | 13 | 59.1 | 7 | 70.0 | 6 | 46.2 | 9 | 81.8 | |
| 2 | - |
| 11 | 32.4 | 3 | 25.0 | 8 | 36.4 | 3 | 30.0 | 6 | 46.2 | 2 | 18.2 | ||
| 3 | - |
| 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | ||
| 4 | - |
| 1 | 2.9 | 0 | 0.0 | 1 | 4.5 | 0 | 0.0 | 1 | 7.6 | 0 | 0.0 | ||