Data were analyzed using descriptive and inferential statistics.
To perform statistical analysis, the software Statistical
Package for the Social Sciences for Windows (SPSS), version
11.0 was used. Quantitative variables were described by mean
and standard deviation. To verify normality of the data, we
applied the Kolmogorov-Smirnov test, accepting p>0.05.
Quantitative variables were presented by absolute and relative
frequencies. Descriptive analyzes comparing groups (mild,
moderate and severe CP) were performed with analysis of variance
(ANOVA) for quantitative (age) and chi-square test for
categorical variables (gender and SES). Multivariate analysis
was used to investigate the effects of interaction between SES
and the severity of CP in functional performance (three CP
severities with two SES), assuming an alpha of 5%. Student’s test for independent samples was applied to compare means
between groups. The level of significance was set at 5.