Table 2.
Crude and adjusted c-section RRs of hospitals in group I
| Hospital | n | Crude RR | p–value | Adj* RR | p–value | % variation† |
|---|---|---|---|---|---|---|
| A |
707 |
0.94 |
0.638 |
1.08 |
0.555 |
14.9 |
| B |
397 |
0.99 |
0.953 |
1.12 |
0.467 |
13.1 |
| C |
268 |
0.42 |
0.003 |
0.47 |
0.008 |
11.9 |
| D |
107 |
0.70 |
0.303 |
0.74 |
0.386 |
5.7 |
| E |
448 |
1.48 |
0.002 |
1.53 |
<0.001 |
3.4 |
| F |
416 |
1.80 |
<0.001 |
1.77 |
<0.001 |
−1.7 |
| G |
508 |
0.92 |
0.586 |
1.02 |
0.887 |
10.9 |
| H |
112 |
1.17 |
0.543 |
1.26 |
0.333 |
7.7 |
| I |
305 |
1.60 |
0.001 |
1.73 |
<0.001 |
8.1 |
| J |
488 |
1.21 |
0.161 |
1.32 |
0.037 |
9.1 |
| K |
572 |
1.38 |
0.008 |
1.49 |
0.001 |
8.0 |
| L |
1,151 |
0.73 |
0.01 |
0.76 |
0.017 |
4.1 |
| M |
243 |
3.85 |
<0.001 |
2.43 |
<0.001 |
−36.9 |
| N |
143 |
2.55 |
<0.001 |
1.96 |
<0.001 |
−23.1 |
| O |
582 |
1.35 |
0.013 |
1.31 |
0.016 |
−3.0 |
| P |
616 |
1.44 |
0.001 |
1.51 |
<0.001 |
4.9 |
| Q |
1,177 |
0.30 |
<0.001 |
0.34 |
<0.001 |
13.3 |
| R |
1,239 |
1.12 |
0.272 |
1.22 |
0.043 |
8.9 |
| S |
99 |
3.31 |
<0.001 |
2.62 |
<0.001 |
−20.8 |
| T |
69 |
3.66 |
<0.001 |
2.57 |
<0.001 |
−29.8 |
| U |
1,382 |
1.95 |
<0.001 |
1.84 |
<0.001 |
−5.6 |
| V |
1,333 |
0.80 |
0.047 |
0.83 |
0.095 |
3.7 |
| W |
1,284 |
1.19 |
0.081 |
1.30 |
0.007 |
9.2 |
| X |
1,965 |
2.47 |
<0.001 |
2.21 |
<0.001 |
−10.5 |
| Y | 564 | 1.33 | 0.021 | 1.28 | 0.036 | −3.8 |
* Adjusted for: age, citizenship, severe co-morbid illness of the mother, HIV, diabetes, hypertension, ante-partum haemorrhage/abruption placentae/placenta praevia, eclampsia/pre-eclampsia, foetal-pelvic disproportion/excessive development of the infant, foetal anomalies, RH-isoimmunisation, polyhydramnios, oligohydramnios, abortion threats/assisted fecundation, congenital malformation, intrauterine growth retardation, post-maturity and macrosomia.
† The % variation is computed as (crude RR-adj RR)*100/crude RR.