Table 6.
Crude and adjusted c-section RRs of hospitals in groups V–X
| Hospital | n | Crude RR | p–value | Adj* RR | p–value | % variation† | Adj‡ RR | p–value | % variation† |
|---|---|---|---|---|---|---|---|---|---|
| A |
529 |
1.11 |
<0.001 |
1.09 |
<0.001 |
−1.8 |
1.11 |
<0.001 |
0.0 |
| B |
251 |
1.17 |
<0.001 |
1.14 |
<0.001 |
−2.6 |
1.13 |
<0.001 |
−3.4 |
| C |
168 |
1.14 |
<0.001 |
1.12 |
<0.001 |
−1.8 |
1.12 |
<0.001 |
−1.8 |
| D |
45 |
1.10 |
0.202 |
1.07 |
0.271 |
−2.7 |
1.02 |
0.729 |
−7.3 |
| E |
286 |
1.07 |
0.057 |
1.06 |
0.046 |
−0.9 |
1.06 |
0.027 |
−0.9 |
| F |
348 |
1.01 |
0.760 |
1.03 |
0.285 |
2 |
1.00 |
0.984 |
−1.0 |
| G |
270 |
1.10 |
0.006 |
1.11 |
<0.001 |
0.9 |
1.13 |
<0.001 |
2.7 |
| H |
102 |
1.18 |
<0.001 |
1.15 |
<0.001 |
−2.5 |
1.15 |
<0.001 |
−2.5 |
| I |
295 |
1.20 |
<0.001 |
1.15 |
<0.001 |
−4.2 |
1.09 |
<0.001 |
−9.2 |
| J |
435 |
1.11 |
<0.001 |
1.13 |
<0.001 |
1.8 |
1.09 |
<0.001 |
−1.8 |
| K |
308 |
1.02 |
0.650 |
1.05 |
0.145 |
2.9 |
1.05 |
0.074 |
2.9 |
| L |
1,123 |
0.77 |
<0.001 |
0.90 |
<0.001 |
16.9 |
0.91 |
<0.001 |
18.2 |
| M |
113 |
1.13 |
0.004 |
1.19 |
<0.001 |
5.3 |
1.12 |
<0.001 |
−0.9 |
| N |
89 |
1.06 |
0.277 |
1.05 |
0.311 |
−0.9 |
1.00 |
0.954 |
−5.7 |
| O |
338 |
0.99 |
0.850 |
1.08 |
0.014 |
9.1 |
1.04 |
0.143 |
5.1 |
| P |
334 |
1.09 |
0.004 |
1.15 |
<0.001 |
5.5 |
1.15 |
<0.001 |
5.5 |
| Q |
833 |
1.08 |
0.002 |
1.11 |
<0.001 |
2.8 |
1.11 |
<0.001 |
2.8 |
| R |
927 |
1.12 |
<0.001 |
1.20 |
<0.001 |
7.1 |
1.23 |
<0.001 |
9.8 |
| S |
212 |
1.21 |
<0.001 |
1.30 |
<0.001 |
7.4 |
1.28 |
<0.001 |
5.8 |
| T |
82 |
1.25 |
<0.001 |
1.16 |
<0.001 |
−7.2 |
1.12 |
0.001 |
−10.4 |
| U |
1,151 |
0.97 |
0.234 |
0.99 |
0.626 |
2.1 |
1.00 |
0.810 |
3.1 |
| V |
975 |
1.11 |
<0.001 |
1.14 |
<0.001 |
2.7 |
1.09 |
<0.001 |
−1.8 |
| W |
1,237 |
1.02 |
0.447 |
1.05 |
0.015 |
2.9 |
1.03 |
0.157 |
1.0 |
| X |
1,307 |
1.11 |
<0.001 |
1.19 |
<0.001 |
7.2 |
1.14 |
<0.001 |
2.7 |
| Y | 298 | 1.10 | 0.004 | 1.15 | <0.001 | 4.5 | 1.13 | <0.001 | 2.7 |
* Adjusted for Robson group.
† 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, ante-partum haemorrhage/abruption placentae/placenta praevia, eclampsia/pre-eclampsia, foetal-pelvic disproportion/excessive development of the infant, foetal anomalies, polyhydramnios, oligohydramnios, premature rupture of the membranes, abortion threats/assisted fecundation, congenital malformation, intrauterine growth retardation, post-maturity and macrosomia, multiple pregnancy, previous CS, cephalic/breech presentation.