Reliability and Validity of Morisky Questionnaire in Measurement of the Compliance with Hypertensive Medications / 中国慢性病预防与控制

ABSTRACT

Objective To evaluate the reliability and validity of Morisky questionnaire in measurement of the compliance with hypertensive medications. Methods Seventy-four eligible subjects were selected and asked to fill a Morisky questionnaire about their adherence in taking antihypertensive drugs during the past 1 month; nineteen of them received two surveys at 3～7 day intervals. The internal consistency (Cronbach ? coefficients),test-retest reliability (interclass correlation coefficients),construct validity and convergent validity were calculated. Results The Cronbach ? coefficient of the questionnaire was 0.749 and the interclass correlation coefficients between the items and the total scores of the questionnaires ranged from 0.71 to 1.00. Factor analysis yielded one factor with an accumulated contribution rate of 57.3%,and the loading values of all items on this factor were above 0.6. The Spearman correlation coefficients between the Morisky scores and the adherence assessment by the subjects themselves were over 0.3 (P