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Table 2 Results of Uni- and Multivariate Logistic Regression of Clinical Variables on Need of Anesthesia

From: A psychoeducational intervention reduces the need for anesthesia during radiotherapy for young childhood cancer patients

  Univariate Poisson regression Multivariate Poisson regression
Potential Predictor Odds Ratio (95% CI) P Odds Ratio (95% CI) P
Age (odds ratio per year) 0.52 (0.49 to 0.54) < 0.001 0.58 (0.55 to 0.62) < 0.001
Gender 0.53 (0.26 to 1.10) 0.090 0.81 (0.67 to 0.99) 0.039
Diagnostic group (reference: CNS tumor)     
   Leukemia 33.7 (16.6 to 68.4) < 0.001 18.6 (9.1 to 38.2) < 0.001
   Solid tumor 36.8 (18.2 to 85.9) < 0.001 17.0 (8.1 to 35.7) < 0.001
Site of irradiation (head vs. others) 0.83 (0.68 to 1.00) 0.049 1.35 (1.04 to 1.77) 0.027
Positioning (head vs. others) 6.97 (4.58 to 10.60) < 0.001 - NS
Psychoeducational support 0.37 (0.29 to 0.47) < 0.001 0.74 (0.57 to 0.95) 0.018
Time of irradiation (odds ratio per year) 0.91 (0.89 to 0.93) < 0.001 - NS
  1. NS indicates not significantly associated with need of anesthesia in multivariate analysis.