Baseline characteristics of enrolled participants
| OP | TP | IUP | |||||
|---|---|---|---|---|---|---|---|
| n* | (%) | n* | (%) | n* | (%) | p Value | |
| Sociodemographic characteristics | |||||||
| Age (years) | 1.00 | ||||||
| ≤24 | 8 | (11.43) | 16 | (11.03) | 17 | (11.64) | |
| 25–29 | 19 | (27.14) | 40 | (27.59) | 37 | (25.34) | |
| 30–34 | 32 | (45.71) | 66 | (45.52) | 70 | (47.95) | |
| ≥35 | 11 | (15.72) | 23 | (15.86) | 22 | (15.07) | |
| Marital status | 0.75 | ||||||
| Married | 66 | (92.96) | 135 | (93.10) | 139 | (95.21) | |
| Unmarried | 4 | (5.63) | 10 | (6.90) | 7 | (4.80) | |
| Education | 0.08 | ||||||
| Primary school or lower | 11 | (15.71) | 45 | (31.03) | 25 | (17.12) | |
| Middle school | 5 | (7.14) | 14 | (9.66) | 13 | (8.90) | |
| High school | 9 | (12.00) | 16 | (11.03) | 18 | (12.33) | |
| College or above | 45 | (64.29) | 70 | (48.27) | 90 | (61.64) | |
| Occupation | 0.02 | ||||||
| Employed | 61 | (87.14) | 101 | (69.66) | 122 | (83.56) | |
| Self-employed | 2 | (2.86) | 18 | (12.41) | 10 | (6.85) | |
| Unemployed | 7 | (10.00) | 26 | (17.93) | 14 | (9.59) | |
| Personal annual income (RMB) | 0.04 | ||||||
| <50 000 | 23 | (37.10) | 57 | (39.31) | 65 | (44.52) | |
| 50 000–100 000 | 26 | (41.94) | 43 | (29.66) | 57 | (39.04) | |
| >100 000 | 13 | (20.97) | 45 | (31.03) | 24 | (16.44) | |
| Smoking | 0.76 | ||||||
| Non-smoking | 68 | (97.14) | 138 | (95.17) | 134 | (95.04) | |
| Smokers | 2 | (2.86) | 7 | (4.83) | 7 | (4.97) | |
*The sum does not equal the sample size for all variables because of missing data.
IUP, intrauterine pregnancy; RMB, ren min bi; OP, ovarian pregnancy; TP, tubal pregnancy.