Development and evaluation of oral Cancer quality-of-life questionnaire (QOL-OC)

BMC Cancer

Table 3 Scoring Methods and Test-retest ability of QOL-OC

Scale	Scales	Items	Score Range	Min	Max	Rough Score	Standardized Score	Spearman correlation coefficient(r)
Pain and discomfort	PD	1, 2, 3, 4, 26	1~ 4	5	20	(1 + 2 + 3 + 4 + 26)/5	[(RS-1)/3] × 100	0.881^**
Eating	ET	5, 6, 7, 8	1~ 4	4	16	(5 + 6 + 7 + 8)/4	[(RS-1)/3] × 100	0.975^**
Saliva	SA	11, 12	1~ 4	2	8	(11 + 12)/2	[(RS-1)/3] × 100	0.918^**
Social contact	SC	15, 16, 17, 18, 23	1~ 4	5	20	(15 + 16 + 17 + 18 + 23)/5	[(RS-1)/3] × 100	0.939^**
Diet	DT	21, 22	1~ 4	2	8	(21 + 22)/2	[(RS-1)/3] × 100	0.923^**
Teeth	TE	9	1~ 4	1	4	9	[(RS-1)/3] × 100	0.984^**
Opening mouth	OM	10	1~ 4	1	4	10	[(RS-1)/3] × 100	0.938^**
Sense of taste	TA	13	1~ 4	1	4	13	[(RS-1)/3] × 100	0.997^**
Appearance	AP	14	1~ 4	1	4	14	[(RS-1)/3] × 100	0.817^**
Sexuality	SX	19	1~ 4	1	4	19	[(RS-1)/3] × 100	/ ^a
Oral ulcer	OU	20	1~ 4	1	4	20	[(RS-1)/3] × 100	0.990^**
Shoulder & neck function	SN	24	1~ 4	1	4	24	[(RS-1)/3] × 100	0.374^*
Bleeding Gingiva	BG	25	1~ 4	1	4	25	[(RS-1)/3] × 100	0.997^**
Weight loss	WL	27	1~ 2	1	2	27	(RS-1) × 100	0.866^**
Weight gain	WG	28	1~ 2	1	2	28	(RS-1) × 100	/ ^a

*P < 0.05 **p < 0.01
^a Each subject got 0 points in the sexuality scale and weight gain scale in the retest trial (constant sequence), so these scales were not part of the calculation of the correlation coefficient

ISSN: 1471-2407