Table 4.
Comparison of demographic characteristics between the withdrawal group and the non-withdrawal group due to the change of bleeding pattern
|
Withdrawal
group n （ %) |
non-withdrawal
group n （ %) |
Chi-
value |
p -value | |
|---|---|---|---|---|
| age （ year ） | ||||
| ≤19 | 1 | 1 | ||
| 20-29 | 17 | 23 | ||
| 30-39 | 25 | 51 | ||
| 40-45 | 5 | 7 | 1.326 | 0.723 |
| pregnancy times | ||||
| 1 | 12 | 5 | ||
| 2 | 11 | 7 | ||
| ≥3 | 25 | 70 | 17.384 | <0.001 |
| the contraceptive method in the 3 months before implantation | ||||
| Oral bills | 4 | 3 | ||
| IUD | 8 | 10 | ||
| Condom | 31 | 62 | ||
| No contraception | 5 | 7 | 2.297 | 0.513 |
| Educational background | ||||
| High school and below | 13 | 22 | ||
| college | 23 | 54 | ||
| bachelor degree and above | 12 | 6 | 8.483 | 0.014 |
| Abortion history | ||||
| yes | 40 | 78 | ||
| no | 8 | 4 | 5.022 | 0.032 |
| Monthly income | ||||
| <2000 | 7 | 5 | ||
| 2000-5000 | 22 | 68 | ||
| >5000 | 19 | 9 | 19.88 | <0.001 |