Table 6.
Predicting factors of normal vaginal birth in women who planned for normal vaginal birth (N = 662)
| Variables | Simple logistic regression | Multiple logistic regression | |||||
|---|---|---|---|---|---|---|---|
| Normal vaginal birth (N = 478) | Emergency Cesarean (N = 144) | OR | P | AOR | 95% C.I for OR | ||
| Lower | Upper | ||||||
| Age (years) | |||||||
| < 20 | 37 (7.1) | 11 (7.6) | 1.27 | .082 | 2.157 | .906 | 5.137 |
| 20–30 | 280 (54.1) | 57 (39.6) | 1.86** | <.001 | 2.396 | 1.469 | 3.909 |
| > 30 | 201 (38.8) | 76 (52.8) | 1 | 1 | |||
| Educational level (years) | |||||||
| < 12 | 109 (75.7) | 403 (77.8) | 1.125 | – | – | – | – |
| > 12 | 35 (24.3) | 115 (22.2) | 1 | – | – | – | – |
| Job | |||||||
| Housewife | 472 (91.1) | 131 (91.0) | 1.02 | – | – | – | – |
| Employed | 46 (8.9) | 13 (9.0) | 1 | – | – | – | – |
| Satisfaction with household income | |||||||
| Low satisfied | 180 (34.7) | 59 (41.0) | 1 | – | – | – | – |
| Moderately satisfied/satisfied | 338 (65.3) | 85 (59.3) | 1.30† | – | – | – | – |
| Gestational age (week) | |||||||
| < 38 | 51 (9.8) | 39 (27.1) | 1 | 1 | |||
| 38–40 | 391 (75.5) | 90 (62,5) | 3.22*** | <.001 | 3.244 | 1.818 | 5.788 |
| > 40 | 76 (14.7) | 15 (10.4) | 3.87*** | .001 | 3.801 | 1.685 | 8.577 |
| Birth weight (gr) | |||||||
| < 2500 g | 42 (8.1) | 18 (12.5) | 1.50 | .007 | 5.008 | 1.556 | 16.123 |
| 2500–3999 | 462 (89.2) | 117 (81.3) | 2.54* | .007 | 3.657 | 1.416 | 9.446 |
| > 4000 | 14 (2.7) | 9 (6.3) | 1 | 1 | |||
| Having a doula | |||||||
| No | 348 (67.2) | 129 (89.6) | 1 | 1 | |||
| Yes | 170 (32.8) | 15 (10.4) | 4.20*** | <.001 | 4.419 | 2.420 | 8.068 |
| Parity | |||||||
| Primipara | 215 (41.5) | 68 (47.2) | 1 | 1 | |||
| Multipara | 303 (58.5) | 76 (52.8) | 1.26† | .010 | 1.937 | 1.175 | 3.192 |
| Infant gender | |||||||
| Female | 268 (51.7) | 80 (55.6) | 1 | – | – | – | – |
| Male | 250 (48.3) | 64 (44.4) | 1.17 | – | – | – | – |
| Onset of labor pain | |||||||
| Spontaneous | 375 (72.4) | 83 (57.6) | 1.72** | .030 | 1.624 | 1.049 | 2.515 |
| Induced | 143 (27.6) | 61 (43.4) | 1 | 1 | |||
| Satisfaction with husband support | |||||||
| Not satisfied to low satisfied | 99 (19.1) | 44 (30.6) | 1 | 1 | |||
| Moderately satisfied | 243 (46.9) | 58 (40.3) | 1.86** | .001 | 2.543 | 1.475 | 4.387 |
| Satisfied/Very satisfied | 176 (34.0) | 42 (29.1) | 1.86* | .063 | 2.024 | .964 | 4.251 |
| Perceived marital/sexual satisfaction | |||||||
| Not satisfied to moderately satisfied | 56 (10.8) | 12 (8.3) | 1 | – | 1 | – | – |
| Satisfied | 260 (50.2) | 83 (57.6) | .67† | .015 | .374 | .169 | .827 |
| Very satisfied | 202 (39.0) | 49 (34.0) | .88 | .076 | .423 | .164 | 1.096 |
| Satisfaction with pregnancy | |||||||
| Not satisfied/ Low satisfied | 67 (12.9) | 36 (25.0) | 1 | 1 | |||
| Moderately satisfied | 190 (36.7) | 52 (36.1) | 1.46 | .345 | 1.547 | .626 | 3.827 |
| Satisfied | 204 (39.4) | 53 (36.8) | 2.49* | .042 | 2.285 | 1.031 | 5.063 |
| Very satisfied | 57 (11) | 3 (2.1) | 3.18** | .012 | 2.741 | 1.248 | 6.020 |
*p < .05, ** p < .01, ***p < .001, †simple logistic regression: p < 0.25
Variables entered on step 1: having a doula, income, parity, birth weight, gestational age, mother’s age, onset of labor pain, maternal satisfaction with pregnancy, satisfaction with husband support, satisfaction with marital/sexual relationship. Method: backward, LR Cox & Snell R Square = 14.5%, Nagelkerke R Square = 22.4%