Validation of two generic patient-reported outcome measures in patients with type 2 diabetes

Table 8 Known-Groups Validity of the PGWB Subscales: Comparisons between Groups of Patients

Variable Used to Differentiate Groups	Groups	Anxiety		Depressed Mood		Positive Well Being		Self Control		General Health		Vitality
		Mean	t Value	Mean	t Value	Mean	t Value	Mean	t Value	Mean	t Value	Mean	t Value
ADS Median Split	ADS Score ≤ 16 (n = 58)	79.9	5.4***	89.7	5.9***	74.3	7.6***	88.4	6.1***	73.1	5.5***	71.2	6.5***
	ADS Score > 16 (n = 72)	61.8		70.3		50.4		69.6		55.7		50.1
DSC-R Median Split	DSC-R Total Score ≤ 0.7 (n = 61)	81.0	6.3***	89.5	5.9***	72.5	6.3***	89.0	6.8***	76.1	8.1***	73.0	8.4***
	DSC-R Total Score > 0.7 (n = 69)	60.0		69.6		50.9		68.3		52.3		47.6
Preference for Weight Change	Lose weight (n = 113)	68.5	-1.9	77.9	-1.4	60.2	-1.2	77.1	-1.3	61.2	-3.1**	57.9	-2.1*
	Stay same (n = 16)	79.5		86.3		67.5		84.2		77.9		70.0
Experienced Hypoglycemia During the Day	Yes (n = 53)	65.7	-2.2*	75.8	-1.5	57.1	-2.1*	74.2	-2.1*	58.7	-2.5*	56.0	-2.0*
	No (n = 74)	73.9		82.1		65.1		82.0		67.7		63.4
Experienced Hypoglycemia During the Night	Yes (n = 23)	60.5	-2.6**	70.4	-2.0	50.0	-3.1**	66.1	-3.7***	55.7	-2.2*	53.5	-1.9
	No (n = 101)	73.0		82.1		64.8		81.8		65.8		62.3
Experienced Hyperglycemia	Yes (n = 64)	67.3	-1.5	76.3	-1.6	57.5	-2.0*	75.2	-1.9	62.4	-0.7	54.8	-2.9**
	No (n = 63)	73.1		82.3		65.2		81.7		65.0		65.2
Type of Treatment	Injectable (n = 31)	65.5	-1.1	73.5	-1.2	54.7	-1.6	74.8	-0.7	58.7	-1.4	52.4	-1.6
	Oral only (n = 85)	70.9		80.1		62.5		78.0		64.7		61.0

ADS = Appraisal of Diabetes Scale; DSC-R = Diabetes Symptom Checklist – Revised; PGWB = Psychological General Well-Being Index; VAS = Visual Analog Scale; *p < 0.05; **p < 0.01; ***p < 0.001

ISSN: 1477-7525