Table 2.

Child Behavior Checklist before and after surgery, TE resp. TT and compared with normal range

	TT	TE	P-value TT CBCL/normal rangea,c	P-value TE CBCL/normal rangea,c	P-value TE/TT CBCL
Before surgery	n=35	n=32
Internalizationb	5.8±4.6	4.2±3.6	<0.01	NS	NS
Externalizationb	9.8±7.0	7.8±6.1	NS	NS	NS
Total problemsb	25.6±19.1	20.9±12.4	<0.001	<0.01	NS
Six months after surgery	n=35	n=32
Internalizationb	3.7±5.4	2.4±2.7	NS	<0.05	NS
Externalizationb	7.6±6.7	6.3±4.5	<0.05	NS	NS
Total problemsb	19.5±18.4	13.5±9.8	<0.05	NS	NS
Two years after surgery	n=32	n=32
Internalizationb	3.1±3.9	2.9±5.8	NS	<0.05	NS
Externalizationb	5.6±6.0	5.6±6.9	NS	NS	NS
Total problemsb	13.9±12.9	13.6±21.7	NS	NS	NS

NS= not significant. ^aNormal range. Swedish population [18]^bMean ± SD ^cMann-Whitney U-test. The children reoperated with tonsil surgery are excluded in the two year follow-up.