Development of a Diagnostic Questionnaire for Damp Phlegm Pattern and Blood Stasis Pattern in Coronary Heart Disease Patients (CHD-DPBSPQ)

Table 4

Descriptive statistical data and reliability of the CHD-DPBSPQ.

	No. of items	Mean ± SD	Range of score	Cronbach’s alpha	Split-half coefficient	ICC (95% CI)
Phlegm domain	9	9.7 ± 5.4	(0.0, 27.0)	0.77	0.81	0.78 (0.66, 0.86)
Blood stasis domain	6	7.7 ± 4.7	(0.0, 18.0)	0.81	0.81	0.83 (0.74, 0.89)
CHD-DPBSPQ	15	17.4 ± 9.5	(0.0, 45.0)	0.88	0.90	0.83 (0.74, 0.89)

ICC: intraclass correlation coefficient.