Abbreviations: SE = sleep efficiency, SOL = sleep onset latency, TST =
total sleep time, TIB = total time in bed, NA = number of awakenings,
suprat. = supratentorial, obstr. = obstructive.
1 Proton and photon radiation therapy grouped together
* Statistically significant (P <0.05)
** Statistically significant (P <0.01)