Table 1

Mean cesarean section (CS) rates by physician quartile

Variables
Physician quartile



Quartile 1
Quartile 2
Quartile 3
Quartile 4
Total

No. of physicians
258
257
258
258
1031
No. of deliveries
40,973
54,464
45,456
31,618
172,511
Mean CS rate
0.21
0.32
0.39
0.52
0.36
Standard deviation
0.06
0.02
0.02
0.08
0.13
Maximum
0.28
0.35
0.43
0.89
0.89
Minimum
0.00
0.29
0.35
0.44
0.00

Tang et al. BMC Public Health 2006 6:246   doi:10.1186/1471-2458-6-246