Table 1.
Crude and adjusted c-section RRs of hospitals
| Hospital | n | Crude RR | p–value | Adj* RR | p–value | % variation† | Adj‡ RR | p–value | % variation† |
|---|---|---|---|---|---|---|---|---|---|
| A |
2,377 |
1.39 |
<0.001 |
1.19 |
<0.001 |
−14.4 |
1.18 |
<0.001 |
−15.1 |
| B |
1,306 |
1.36 |
<0.001 |
1.25 |
<0.001 |
−8.1 |
1.26 |
<0.001 |
−7.4 |
| C |
935 |
1.05 |
0.428 |
1.00 |
0.908 |
−4.8 |
1.01 |
0.877 |
−3.8 |
| D |
344 |
1.27 |
0.006 |
1.35 |
<0.001 |
6.3 |
1.37 |
<0.001 |
7.9 |
| E |
1,468 |
1.34 |
<0.001 |
1.12 |
0.001 |
−16.4 |
1.14 |
<0.001 |
−14.9 |
| F |
1,677 |
1.41 |
<0.001 |
1.12 |
0.001 |
−20.6 |
1.09 |
0.006 |
−22.7 |
| G |
1,615 |
1.22 |
<0.001 |
1.08 |
0.026 |
−11.5 |
1.11 |
0.003 |
−9.0 |
| H |
459 |
1.71 |
<0.001 |
1.34 |
<0.001 |
−21.6 |
1.31 |
<0.001 |
−23.4 |
| I |
1,430 |
1.51 |
<0.001 |
1.26 |
<0.001 |
−16.6 |
1.21 |
<0.001 |
−19.9 |
| J |
2,096 |
1.39 |
<0.001 |
1.18 |
<0.001 |
−15.1 |
1.17 |
<0.001 |
−15.8 |
| K |
1,854 |
1.28 |
<0.001 |
1.25 |
<0.001 |
−2.3 |
1.24 |
<0.001 |
−3.1 |
| L |
4,389 |
1.02 |
0.550 |
0.90 |
<0.001 |
−11.8 |
0.90 |
<0.001 |
−11.8 |
| M |
603 |
1.82 |
<0.001 |
1.77 |
<0.001 |
−2.7 |
1.62 |
<0.001 |
−11.0 |
| N |
547 |
1.38 |
<0.001 |
1.13 |
0.044 |
−18.1 |
1.13 |
0.038 |
−18.1 |
| O |
1,923 |
1.02 |
0.616 |
1.09 |
0.019 |
6.9 |
1.05 |
0.188 |
2.9 |
| P |
2,120 |
1.38 |
<0.001 |
1.28 |
<0.001 |
−7.2 |
1.28 |
<0.001 |
−7.2 |
| Q |
4,377 |
1.14 |
<0.001 |
1.02 |
0.431 |
−10.5 |
1.03 |
0.261 |
−9.6 |
| R |
4,488 |
1.45 |
<0.001 |
1.29 |
<0.001 |
−11.0 |
1.29 |
<0.001 |
−11.0 |
| S |
598 |
2.73 |
<0.001 |
1.75 |
<0.001 |
−35.9 |
1.68 |
<0.001 |
−38.5 |
| T |
304 |
2.45 |
<0.001 |
1.76 |
<0.001 |
−28.2 |
1.72 |
<0.001 |
−29.8 |
| U |
4,591 |
1.58 |
<0.001 |
1.32 |
<0.001 |
−16.5 |
1.26 |
<0.001 |
−20.3 |
| V |
4,430 |
1.26 |
<0.001 |
1.06 |
0.009 |
−15.9 |
1.03 |
0.159 |
−18.3 |
| W |
5,635 |
1.34 |
<0.001 |
1.13 |
<0.001 |
−15.7 |
1.11 |
<0.001 |
−17.2 |
| X |
6,374 |
1.44 |
<0.001 |
1.35 |
<0.001 |
−6.2 |
1.31 |
<0.001 |
−9.0 |
| Y | 1,770 | 1.33 | <0.001 | 1.25 | <0.001 | −6.0 | 1.23 | <0.001 | −7.5 |
* Adjusted for Robson class.
† The % variation is computed as (crude RR-adj RR)*100/crude RR.
‡ Adjusted for: age, citizenship, severe co-morbid illness of the mother, HIV, diabetes, hypertension, lung diseases, ante-partum haemorrhage/abruption placentae/placenta praevia, eclampsia/pre-eclampsia, foetal-pelvic disproportion/excessive development of the infant, foetal anomalies, RH-isoimmunisation, polyhydramnios, oligohydramnios, premature rupture of the membranes, problem of the amnios, congenital malformation, intrauterine growth retardation, post-maturity and macrosomia, Robson group.