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Examining the causal model linking health literacy to health outcomes of asthma patients.

Abstract：

AIMS AND OBJECTIVES:To explore health literacy status in asthma patients and to examine the causal model linking health literacy to health outcome-related factors via mediator and moderator variables. BACKGROUND:Understanding how low health literacy may influence health outcomes is important. DESIGN:This is a cross-sectional survey study. METHODS:A total of 326 asthma patients aged 20 years and older (average: 51 ± 18·3 years) were recruited by purposive sampling from pulmonary medicine outpatient departments at three medical centres and a regional teaching hospital in northern Taiwan. Data were collected via structured questionnaires, including measures of socio-demographic and disease characteristics; medical decision-making; asthma knowledge, attitudes and self-efficacy; healthcare experience and health outcome-related factors (metered-dose inhaler/dry-powder inhaler usage proficiency, medical use, self-management behaviour). Three hundred patients who met the inclusion criteria and completed the questionnaire survey were analysed. RESULTS:Overall, 217 subjects (72·3%) had adequate functional health literacy, 42 (14%) had inadequate functional health literacy, and 41 (13·7%) had marginal functional health literacy. Subjects' average asthma knowledge, attitudes and self-efficacy scores were 7·23 ± 2·69, 51·46 ± 6·18 and 58·31 ± 8·10, respectively. Health literacy correlated positively with asthma knowledge (r = 0·605), attitudes (r = 0·192) and medical decision-making (r = 0·413). CONCLUSIONS:Health literacy is positively associated with proficiency in metered-dose inhaler usage, asthma knowledge, attitudes and medical decision-making, but is not significantly associated with medical care use and self-management behaviour. Health literacy had an indirect effect on self-management behaviour through the mediation effect of asthma attitudes. No moderator was found for the effect of health literacy on health outcome-related factors. RELEVANCE TO CLINICAL PRACTICE:Results of this study may help to develop adequate intervention strategies to improve the health outcomes of asthma patients.

journal_name

J Clin Nurs

journal_title

Journal of clinical nursing

authors

Wang KY,Chu NF,Lin SH,Chiang IC,Perng WC,Lai HR

doi

10.1111/jocn.12434

subject

Has Abstract

pub_date

2014-07-01 00:00:00

pages

2031-42

issue

13-14

eissn

0962-1067

issn

1365-2702

journal_volume

pub_type

杂志文章

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Examining the causal model linking health literacy to health outcomes of asthma patients.