Table 1.
Baseline parameters
| Parameters | Cases, n (%) | Controls, n (%) | P |
|---|---|---|---|
| Age group (years) | |||
| ≤30 | 37 (74) | 44 (88) | 0.072 |
| >30 | 13 (26) | 6 (12) | |
| Mean maternal age at abortion (years) | 27.5±4.1 | 25.94±4.012 | 0.062 |
| Occupation | |||
| Housewife | 47 (94) | 48 (96) | 0.99 |
| Working | 3 (6) | 2 (4) | |
| Socioeconomic status | |||
| Low | 13 | 12 | 0.339 |
| Middle | 35 | 38 | |
| High | 2 | 0 | |
| Mental stress | |||
| Present | 1 | 0 | 0.99 |
| Absent | 49 | 50 | |
| Gravida | |||
| Primi | 9 (18) | 0 | 0.003 |
| Multi | 41 (82) | 50 | |
| Maternal anemia | |||
| Present | 44 | 38 | 0.118 |
| Absent | 6 | 12 | |
| Number of previous miscarriages | |||
| 0-1 | 9 | 0 | <0.001 |
| >1 | 41 | 0 | |
| Gestation at miscarriage (weeks) | |||
| ≤10 | 37 | 46 | 0.002 |
| >10 | 13 | 4 |