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

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

	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

NS indicates not significantly associated with need of anesthesia in multivariate analysis.

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