Risk-adjusted cesarean section rates for the assessment of physician performance in Taiwan: a population-based study

Table 4 Predicted cesarean section rates by physician quartile

	Physician CS rates		Proportion below predicted CI		Proportion within predicted CI		Proportion above predicted CI
Quartile	Mean predicted rate	95% CI	No.	%	No.	%	No.	%
Model 1
Quartile 1	0.28	0.27–0.28	234	90.70	24	9.30	-	-
Quartile 2	0.33	0.33–0.34	177	68.87	42	16.34	38	14.79
Quartile 3	0.37	0.36–0.37	35	13.57	31	12.02	192	74.41
Quartile 4	0.44	0.43–0.45	-	-	40	15.50	218	84.50
Total	0.35	0.35–0.36	446	43.26	137	13.29	448	43.45
Model 2
Quartile 1	0.26	0.25–0.27	183	70.93	51	19.77	24	9.30
Quartile 2	0.31	0.31–0.32	99	38.52	41	15.96	117	45.52
Quartile 3	0.35	0.34–0.36	-	-	39	15.12	219	84.88
Quartile 4	0.42	0.41–0.43	-	-	-	-	258	100
Total	0.33	0.33–0.34	282	27.35	131	12.71	618	59.94

ISSN: 1471-2458