Table 2.
Comparison of labor characteristics between the three parity groups
| Variable | Group 1 (n = 1658) % | Group 2 (n = 1198) % | Group 3 (n = 160) % | RRa (95 % CI) | P value | RRb (95 % CI) | P value | RRc (95 % CI) | P value |
|---|---|---|---|---|---|---|---|---|---|
| Induction of labor | 56 (3.37) | 98 (8.18) | 6 (3.75) | 2.42 (1.75–3.33) | 0.0001*** | 1.10 (0.50–2.39) | 0.80 | 0.46 (0.21–1.03) | 0.04* |
| Labor augmentation | 99 (5.97) | 32 (2.67) | 2 (1.25) | 0.44 (0.30–0.66) | 0.0001*** | 0.21 (0.05–0.85) | 0.01* | 0.49 (0.12–1.90) | 0.27 |
| Meconium stained liquor | 152 (9.16) | 128 (10.68) | 17 (10.62) | 1.16 (0.93–1.45) | 0.17 | 1.16 (0.71–1.86) | 0.54 | 0.99 (0.62–1.59) | 0.98 |
| CTG abnormalities in labor | 87 (5.24) | 91 (7.59) | 6 (3.75) | 1.44 (1.08–1.92) | 0.01* | 0.72 (0.32–1.58) | 0.41 | 0.50 (0.23–1.11) | 0.07 |
| Preterm delivery | 43 (2.59) | 63 (5.25) | 14 (8.75) | 2.02 (1.38–2.96) | 0.0002*** | 2.96 (1.83–4.79) | 0.0001*** | 1.59 (0.96–2.62) | 0.07 |
| Post-term delivery | 48 (2.89) | 128 (10.68) | 5 (3.12) | 3.69 (2.67–5.09) | 0.0001*** | 1.07 (0.46–2.50) | 0.86 | 0.29 (0.12–0.71) | 0.002** |
* Statistically significant result; ** Statistically highly significant result; *** Statistically very highly significant result
aComparison between Groups 1 & 2
bComparison between Groups 1 & 3
cComparison between Groups 2 & 3