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Table 3 Relationship between quality of care and the occurrence of stroke(Odds Ratio and 95% CI)

From: The role of 'confounding by indication' in assessing the effect of quality of care on disease outcomes in general practice: results of a case-control study

  MODEL 1 MODEL 2 MODEL 3
Care:    
Optimal 1.00 (ref.) 1.00 (ref.) 1.00 (ref.)
Sub-optimal 0.60 (0.24–1.53) 0.64 (0.25–1.65) 0.82 (0.29–2.30)
Sex:    
Male   1.00 (ref.) 1.00 (ref.)
Female   0.90 (0.36–2.30) 0.61 (0.22–1.72)
Age:   1.03 (0.98–1.08) 1.03 (0.98–1.08)
Risk factors:    0.76 (0.61–0.94)
  1. Note: to control for risk factors, the number of risk factors per patient were included in the regression model.
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