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Table 4 Predicted cesarean section rates by physician quartile

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

  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