Table 4. Distribution of missing data by crisis location.
| Variable | Stable | Intermediate | Unstable | Total | P value |
|---|---|---|---|---|---|
| Robson | 1452 (45.3) | 544 (37.8) | 446 (62.0) | 2442 (45.9) | <0.001 |
| Maternal age | 351 (11.1) | 103 (7.16) | 48 (6.7) | 502(9.4) | <0.001 |
| Abortion | 1354 (42.7) | 422 (30.7) | 112 (15.6) | 1908 (35.8) | <0.001 |
| Parity | 1142 (36.1) | 432 (30.0) | 78 (10.9) | 1652 (31.0) | <0.001 |
| Previous CS | 878 (27.7) | 69 (4.8) | 210 (29.2) | 1157 (21.7) | <0.001 |
| Gestational age | 1289 (40.7) | 447 (31.1) | 316 (43.9) | 2052 (38.5) | <0.001 |
| Number of foetuses | 493 (15.6) | 45 (3.13) | 81 (11.3) | 619 (11.6) | <0.001 |
| Presentation | 1124 (35.5) | 470 (32.7) | 151 (21.0) | 1745 (32.7) | <0.001 |
| Onset of labour | 1210 (38.2) | 391 (27.2) | 268 (37.3) | 1869 (35.1) | <0.001 |
| Birth weight | 400 (12.6) | 110 (7.7) | 67 (9.3) | 557 (10.8) | <0.001 |
| Death history in the offspring | 1372 (43.3) | 443 (30.8) | 106 (14.7) | 1921 (36.1) | <0.001 |
| Health coverage | 2131 (67.3) | 953 (66.3) | 309 (43.0) | 3393 (62.7) | <0.001 |
Data are n (%) of missing data.