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Table 2: 
Multivariate results of predictors of mortality
Clipped PatientsCoiled Patients
OR (95% CI)POR (95% CI)P
Age group (yr)
    Younger than 50RefRefRefRef
    50–641.36 (1.28–1.44)<.00011.46 (1.35–1.57)<.0001
    65–792.02 (1.88–2.17)<.00012.20 (2.02–2.38)<.0001
    80 or older3.19 (2.79–3.64)<.00013.67 (3.28–4.11)<.0001
Time period
    2001–2004RefRefRefRef
    2005–20090.87 (0.83–0.92)<.00010.79 (0.74–0.84)<.0001
CCI1.23 (1.19–1.27)<.00011.22 (1.18–1.26)<.0001
  • Note:—Ref indicates reference; OR, odds ratio.