Table 1.

Compliance With Health-Related Quality-of-Life Assessments

Time Point	Forms		%	Difference
	Expected	Received
Baseline	286	268	93.7	0.144
PCI	143	137	95.8
Control	143	131	91.6
At 6 weeks	270	162	60.0	0.274
PCI	134	76	56.7
Control	136	86	63.2
At 3 months	235	128	54.5	0.340
PCI	120	69	57.5
Control	115	59	51.3
At 6 months	130	79	60.8	0.679
PCI	71	42	59.2
Control	59	37	62.7
At 9 months	82	38	46.3	0.948
PCI	45	21	46.7
Control	37	17	45.9
At 12 months	45	22	48.9	0.155
PCI	28	16	57.1
Control	17	6	35.3

Abbreviations: PCI, prophylactic cranial irradiation.