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Comparison between telephone and self-administration of Short Form Health Survey Questionnaire (SF-36).

Abstract：

OBJECTIVE:The characteristics of the 36 item Medical Outcome Short Form Health Study Survey (SF-36) questionnaire, designed as a generic indicator of health status for the general population, allow it to be self-administered or used in personal or telephone interviews. The main objective of the study was to compare the telephone and self-administered modes of SF-36 for a population from Girona (Spain). METHODS:A randomized crossover administration of the questionnaire design was used in a cardiovascular risk factor survey. Of 385 people invited to participate in the survey, 351 agreed to do so and were randomly assigned to two orders of administration (i.e., telephone-self and self-telephone); 261 completed both questionnaires. Scores were compared between administration modes using a paired t test. Internal consistency and agreement between modalities were analyzed by respectively applying Chronbach's alpha and intraclass correlation coefficients. The effect of the order of administration on the test-retest difference was analyzed by one-way ANOVA for repeated measurements. RESULTS:Physical function, physical role and social functioning received significantly lower scores when the self-administered questionnaire was used prior to the telephone survey. When the initial survey was conducted by telephone, all Chronbach's alpha coefficients (except social functioning) scored over 0.70 in the self-administered modality. The intraclass correlation coefficient ranged from 0.41 to 0.83 for the telephone-self order and from 0.32 to 0.73 for the self-telephone order. No clinically significant effect was observed for the order of application. CONCLUSIONS:The results of the present study suggest that the telephone-administration mode of SF-36 is equivalent to and as valid as the self-administered mode.

journal_name

Gac Sanit

journal_title

Gaceta sanitaria

authors

García M,Rohlfs I,Vila J,Sala J,Pena A,Masiá R,Marrugat J,REGICOR Investigators.

doi

10.1016/s0213-9111(05)71393-5

subject

Has Abstract

pub_date

2005-11-01 00:00:00

pages

433-9

issue

eissn

0213-9111

issn

1578-1283

pii

13082788

journal_volume

pub_type

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Comparison between telephone and self-administration of Short Form Health Survey Questionnaire (SF-36).