Table 2.
| Total | Factor 1: Healthy | Factor 2: Western | Factor 3: Rice and miso soup | ||||
|---|---|---|---|---|---|---|---|
| Total(n = 140) | Q1 (n = 35) | Q4 (n = 35) | Q1 (n = 35) | Q4 (n = 35) | Q1 (n = 35) | Q4 (n = 35) | |
| Age (years) | 37.0 ± 4.2 | 36.7 ± 4.1 | 36.7 ± 3.9 | 37.9 ± 4.4 | 37.2 ± 4.5 | 38.4 ± 4.1 | 37.3 ± 4.4* |
| Age of husband (years) | 38.6 ± 5.2 | 37.8 ± 4.2 | 38.0 ± 4.4 | 38.8 ± 5.3 | 38.1 ± 6.1 | 40.1 ± 5.1 | 38.3 ± 5.9 |
| Energy intake (kcal/d) | 1508 ± 377 | 1599 ± 295 | 1423 ± 328 | 1630 ± 434 | 1357 ± 317* | 1483 ± 346 | 1407 ± 340 |
| BMI (kg/m2) | 21.1 ± 2.9 | 20.8 ± 3.6 | 21.2 ± 2.1 | 21.5 ± 2.6 | 21.0 ± 1.8 | 21.5 ± 3.2 | 20.9 ± 2.4 |
| Education (%) | |||||||
| <13 years | 12 (8.6) | 4 (11.4) | 2 (5.7) | 3 (8.6) | 5 (14.3) | 3 (8.6) | 5 (14.3) |
| 13‐14 years | 49 (35.0) | 10 (28.6) | 12 (34.3) | 15 (42.9) | 12 (34.3) | 14 (40.0) | 13 (37.1) |
| ≥15 years | 79 (56.4) | 21 (60.0) | 21 (60.0) | 17 (48.6) | 18 (51.4) | 18 (51.4) | 17 (48.6) |
| Parity of 1 or more | 31 (22.1) | 8 (22.9) | 6 (17.1) | 10 (28.6) | 7 (20.0) | 12 (34.3) | 4 (11.4) |
| Smoking experience (%) | 28 (20.0) | 8 (22.9) | 8 (22.9) | 11 (31.4) | 6 (17.1) | 8 (22.9) | 4 (11.4) |
| Alcohol drinker (%) | 83 (59.3) | 22 (62.9) | 20 (57.1) | 26 (74.3) | 17 (48.6)** | 18 (51.4) | 20 (57.1) |
| Folate supplement user (%) | 86 (61.4) | 16 (45.7) | 22 (62.9) | 20 (57.1) | 21 (60.0) | 23 (65.7) | 24 (68.6) |
| Number of oocytes retrieved (n) | 1.96 ± 1.30 | 2.03 ± 1.64 | 1.63 ± 0.88 | 2.17 ± 1.93 | 1.83 ± 0.95 | 2.03 ± 1.01 | 1.74 ± 1.07 |
| Veeck's criteria of embryo | |||||||
| 1 | 31 (22.1) | 9 (25.7) | 5 (14.3) | 9 (25.7) | 7 (20.0) | 10 (28.6) | 5 (14.3) |
| 2 | 37 (26.4) | 6 (17.1) | 14 (40.0) | 9 (25.7) | 9 (25.7) | 8 (22.9) | 10 (28.6) |
| 3 | 70 (50.0) | 20 (57.1) | 14 (40.0) | 16 (45.7) | 18 (51.4) | 17 (48.6) | 20 (57.1) |
| 4 | 2 (1.4) | 0 (0) | 2 (5.7) | 1 (2.9) | 1 (2.9) | 0 (0) | 0 (0) |
| 5 | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
a
Values are means ± SD for continuous variables and number of subjects (%) for categorical variables.
b
A linear trend test and a Mantel‐Haenszel chi‐square test were used for continuous and categorical variables, respectively: *P < 0.05, **P < 0.01.