Table 2.
Medical indication for C-section according to the hospital guidelines: percentage and determinants
| Women with medical indication | Univariate | Adjusted for maternal age a | Adjusted for parity b | Adjusted for previous C-section | Adjusted for all a b | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | % | OR [95% CI] | P value | OR [95% CI] | P Value | OR [95% CI] | P Value | OR [95% CI] | P Value | OR [95% CI] | P Value | |
| Total population | 1433/12209 | 11.7 | – | – | – | – | – | – | – | – | – | – |
| Occupation | ||||||||||||
| Housewife | 797/7129 | 11.2 | 1 | 1 | 1 | 1 | 1 | |||||
| Small business | 295/2161 | 13.7 | 1.26 (1.09;1.45) | 0.0018 | 1.16 (1.00;1.34) | 0.0454 | 1.24 (1.08;1.44) | 0.0028 | 1.21 (1.00;1.46) | 0.0499 | 1.17 (0.97;1.41) | 0.1071 |
| Professional | 205/1304 | 15.7 | 1.48 (1.25;1.75) | 0.0000 | 1.31 (1.11;1.55) | 0.0016 | 1.5 (1.27;1.77) | 0.0000 | 1.33 (1.07;1.66) | 0.0117 | 1.17 (0.93;1.48) | 0.1672 |
| Student | 117/1375 | 8.5 | 0.74 (0.60;0.91) | 0.0035 | 0.93 (0.76;1.15) | 0.5087 | 0.81 (0.65;0.99) | 0.0411 | 1.19 (0.95;1.48) | 0.1294 | 1.19 (0.94;1.49) | 0.1402 |
| Overall p-value | 0.0000 | 0.0044 | 0.0000 | 0.0281 | 0.1832 | |||||||
| Maternal age | ||||||||||||
| < 16 years | 4/61 | 6.6 | 1 | 1 | 1 | 1 | ||||||
| 16–20 years | 171/2081 | 8.2 | 1.28 (0.46;3.56) | 0.6417 | – | – | 1.27 (0.45;3.54) | 0.6509 | 1.09 (0.39;3.04) | 0.8705 | 1.12 (0.40;3.15) | 0.8330 |
| 21–25 years | 413/4437 | 9.3 | 1.46 (0.53;4.05) | 0.4646 | – | – | 1.46 (0.53;4.05) | 0.4656 | 1.02 (0.37;2.83) | 0.9698 | 1.1 (0.39;3.09) | 0.8534 |
| 26–30 years | 461/3373 | 13.7 | 2.26 (0.81;6.25) | 0.1175 | – | – | 2.33 (0.84;6.48) | 0.1035 | 1.13 (0.40;3.13) | 0.8207 | 1.37 (0.48;3.87) | 0.5541 |
| 31–35 years | 239/1452 | 16.5 | 2.81 (1.01;7.81) | 0.0480 | – | – | 2.99 (1.07;8.35) | 0.0370 | 1.17 (0.42;3.30) | 0.7601 | 1.63 (0.57;4.69) | 0.3655 |
| 36–40 years | 119/656 | 18.1 | 3.16 (1.12;8.87) | 0.0291 | – | – | 3.51 (1.24;9.95) | 0.0184 | 1.19 (0.41;3.44) | 0.7425 | 1.97 (0.66;5.84) | 0.2228 |
| > 40 years | 25/124 | 20.2 | 3.6 (1.19;10.86) | 0.0231 | – | – | 4.17 (1.36;12.80) | 0.0126 | 2.16 (0.68;6.82) | 0.1896 | 4.24 (1.29;13.90) | 0.0173 |
| Overall p-value | 0.0000 | 0.0000 | 0.2171 | 0.0001 | ||||||||
| Parity | ||||||||||||
| 0–1 | 557/5915 | 9.4 | 1 | 1 | 1 | 1 | ||||||
| 2–4 | 795/5564 | 14.3 | 1.6 (1.43;1.80) | 0.0000 | 1.21 (1.06;1.38) | 0.0037 | – | – | 0.62 (0.54;0.73) | 0.0000 | 0.5 (0.42;0.60) | 0.0000 |
| > 4 | 78/692 | 11.3 | 1.22 (0.95;1.57) | 0.1178 | 0.64 (0.48;0.85) | 0.0020 | – | – | 0.8 (0.58;1.09) | 0.1581 | 0.48 (0.34;0.70) | 0.0000 |
| Overall p-value | 0.0000 | 0.0000 | 0.0000 | 0.0000 | ||||||||
| Previous C-section | ||||||||||||
| No | 829/11605 | 7.1 | – | – | – | – | – | – | – | – | – | – |
| Yes | 604/604 | 100 | – | – | – | – | – | – | – | – | – | – |
aAdjustment for age in years; bAdjustment for parity in actual number of births (not in parity categories)