| Miscarriage in partner | Yes | 0 (0.0) | 3 (33.3) | 7 (36.8) | 2 (33.3) | 8 (57.1) | 5 (25.0) | 6 (40.0) | 3 (42.9) | 8 (42.1) | 8 (27.6) | 13 (38.2) | 5 (38.5) | 9.6 | 4.5 | |
| No | 5 (100.0) | 6 (66.7) | 12 (63.2) | 4 (66.7) | 6 (42.9) | 15 (75.0) | 9 (60.0) | 4 (57.1) | 11 (57.9) | 21 (72.4) | 21 (61.8) | 8 (61.5) | 9.7 | 4.4 | ||
| χ2 (P-value) | 1.16 (0.28) | 0.0 (1.00) | 0.21 (0.64) | 0.0 (1.00) | 2.45 (0.12) | 1.81 (0.18) | 0.004 (0.95) | 0.0 (1.00) | 0.41 (0.52) | 1.21 (0.27) | 0.14 (0.71) | 0.00 (1.00) | - | |||
| OR (95% CI) | undefined | 1.17 (0.23, 5.73) | 1.75 (0.44, 6.93) | 1.15 (0.18, 7.33) | 2.67 (0.77, 9.19) | 0.37 (0.11, 1.24) | 1.04 (0.31, 3.49) | 1.18 (0.24, 5.89) | 1.40 (0.50, 3.90) | 0.59 (0.23, 1.52) | 1.18 (0.49, 2.82) | 1.14 (0.34, 3.81) | ||||
| t-test (P-value) | −0.10 (0.46) | |||||||||||||||
| Social habits | Smoking | Never | 4 (80.0) | 8 (88.9) | 17 (89.5) | 5 (83.3) | 11 (78.6) | 16 (80.0) | 14 (93.3) | 6 (85.7) | 15 (78.9) | 24 (82.8) | 31 (91.2) | 11 (84.6) | 9.9 | 4.2 |
| Ever smoked | 1 (20.0) | 1 (11.1) | 2 (10.5) | 1 (16.7) | 3 (21.4) | 4 (20.0) | 1 (6.7) | 1 (14.3) | 4 (21.1) | 3 (17.2) | 3 (8.8) | 2 (15.4 ) | 8.8 | 4.9 | ||
| χ2 (P-value) | 0.0 (1.00) | 0.0 (1.00) | 0.0 (1.00) | 0.0 (1.00) | 0.04 (0.83) | 0.05 (0.82) | 0.56 (0.45) | 0.0 (1.00) | 0.26 (0.61) | 0.02 (0.89) | 0.83 (0.36) | 0.00 (1.00) | - | |||
| OR (95% CI) | 0.55 (0.05, 6.04) | 1.23 (0.12, 12.65) | 1.50 (0.22, 10.14) | 0.69 (0.06, 7.51) | 0.61 (0.13, 2.86) | 0.65 (0.15, 2.74) | 3.40 (0.39, 29.75) | 1.17 (0.12, 11.09) | 0.57 (0.16, 2.06) | 0.76 (0.23, 2.50) | 2.27 (0.59, 8.80) | 0.94 (0.19, 4.79) | ||||
| t-test (P-value) | −0.94 (0.18) | |||||||||||||||
| Alcohol intake | Never | 3 (60.0) | 5 (55.6) | 5 (26.3) | 2 (33.3) | 4 (28.6) | 7 (35.0) | 5 (33.3) | 5 (71.4) | 7 (36.8) | 12 (41.4) | 10 (29.4) | 7 (53.8) | 9.9 | 4.5 | |
| Ever took | 2 (40.0) | 2 (44.4) | 14 (73.7) | 4 (66.7) | 10 (71.4) | 13 (65.0) | 10 (66.7) | 2 (28.6) | 12 (63.2) | 17 (58.6) | 24 (70.6) | 6 (46.2) | 9.5 | 4.3 | ||
| χ2 (P-value) | 0.32 (0.57) | 0.66 (0.42) | 1.42 (0.13) | 0.00 (1.00) | 0.23 (0.63) | 0.08 (0.78) | 0.01 (0.94) | 2.45 (0.12) | 0.01 (1.00) | 0.21 (0.64) | 1.60 (0.21) | 1.61 (0.20) | - | |||
| OR (95% CI) | 2.75 (0.40, 18.81) | 2.50 (0.55, 11.41) | 0.36 (0.09, 1.37) | 0.77 (0.12, 4.82) | 0.59 (0.16, 2.19) | 0.85 (0.27, 2.663) | 0.78 (0.23, 2.71) | 5.16 (0.90, 29.53) | 0.95 (0.33, 2.68) | 1.24 (0.51, 3.02) | 0.56 (0.23, 1.37) | 2.13 (0.65, 6.94) | ||||
| t-test (P-value) | −0.43 (0.34) | |||||||||||||||
| Use herbal tea | Never | 3 (60.0) | 6 (66.7) | 14 (73.7) | 5 (83.3) | 8 (57.1) | 15 (75.0) | 11 (73.3) | 3 (42.9) | 11 (57.9) | 21 (72.4) | 25 (73.5) | 8 (61.5) | 9.8 | 4.1 | |
| Ever used | 2 (40.0) | 3 (33.3) | 5 (26.3) | 1 (16.7) | 6 (42.9) | 5 (25.0) | 4 (26.7) | 4 (57.1) | 8 (42.1) | 8 (27.6) | 9 (26.5) | 5 (38.5) | 9.3 | 5.0 | ||
| χ2 (P-value) | 0.01 (0.92) | 0.0 (1.00) | 0.0 (1.00) | 0.04 (0.85) | 0.65 (0.42) | 0.57 (0.45) | 0.14 (0.71) | 0.92 (0.34) | 1.2 (0.27) | 0.34 (0.58) | 0.63 (0.43) | 0.06 (0.80) | - | |||
| OR (95% CI) | 0.54 (0.08, 3.78) | 0.72 (0.15, 3.62) | 1.20 (0.30, 4.86) | 2..17 (0.22, 21.08) | 0.60 (0.1, 2.07) | 1.90 (0.57, 6.43) | 1.59 (0.43, 5.87) | 0.33 (0.07, 1.66) | 0.56 (0.20, 1.58) | 1.31 (0.50, 3.3) | 1.45 (0.58, 3.69) | 0.70 (0.21, 2.36) | ||||
|
| t-test (P-value) | −0.48 (0.32) | ||||||||||||||