Cognitive and Social Outcomes in Survivors Treated with XRT versus PRT
Comparisons of social and cognitive outcomes between survivors treated with XRT and PRT accounting for time since radiation are presented in Table 3. Peer relations and social skills were similar across RT groups (all F s < 1, p s > .8). The average IQ score of the XRT group fell in the Below Average range of ability and was significantly lower than that of the PRT group, which was Average (p <0 .01). Cognitively, the XRT group performed significantly worse than the PRT group on measures of processing speed (p = 0.01) and verbal memory (p < 0.01). Effects for executive functioning (p = 0.06) and verbal learning (p = 0.07) approached significance. Survivors treated with XRT and PRT performed similarly on a measure of sustained attention.