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Effects of self-efficacy, social support and knowledge on adherence to PEFR self-monitoring among adults with asthma: a prospective repeated measures study.
Int J Nurs Stud. 2007 Aug; 44(6):882-92.IJ

Abstract

BACKGROUND

Long-term adherence to self-monitoring of peak expiratory flow rate (PEFR) is essential for early detection of declining lung function in individuals with asthma. Psychosocial and cognitive factors can influence adherence to PEFR self-monitoring behaviors.

OBJECTIVES

The specific aims of this prospective, repeated measures study were to: (1) determine the effects of asthma self-efficacy, perceived satisfaction with social support and asthma knowledge on adherence to PEFR self-monitoring behavior; and (2) examine whether adherence to PEFR self-monitoring mediates the effects of psychosocial/cognitive factors on lung function and asthma symptoms in adults with asthma.

DESIGN

Sixty-eight participants completed standardized questionnaires three times at baseline, 1 month, and 3 months and kept the records of PEFR self-monitoring behaviors twice a day. Data were analyzed using multiple linear regressions. Adherence rates to PEFR self-monitoring were 93.5% and 74.9% at 1 and 3 month, representing those who remained in the study (n=39). Other participants withdrew from the study.

FINDINGS

Both at 1 and 3 month, psychosocial/cognitive factors as a whole did not account for a significant variance in adherence to PEFR self-monitoring. Univariate analyses, however, indicated that baseline asthma self-efficacy and asthma knowledge at 1 month were significant independent predictors for adherence to PEFR self-monitoring at 3 month.

CONCLUSION

Adherence to PEFR self-monitoring did not mediate the effects of asthma self-efficacy, perceived satisfaction with social support, and asthma knowledge on lung function and asthma symptoms. Lung function was low, but participants reported low asthma symptoms, both of which remained stable over time. Because of a small sample size and high attrition, the findings of the study need to be interpreted with caution. Given the importance of long-term adherence to self-management in asthma and other chronic illnesses, factors influencing adherence need to be further investigated to set a basis for future interventions.

Authors+Show Affiliations

Fundamental Nursing Department, College of Nursing, The Thai Red Cross Society, 1873 Rama IV, Pratumwan, Bangkok 10330, Thailand. rcyui@yahoo.com <rcyui@yahoo.com>No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16620821

Citation

Ngamvitroj, Anchalee, and Duck-Hee Kang. "Effects of Self-efficacy, Social Support and Knowledge On Adherence to PEFR Self-monitoring Among Adults With Asthma: a Prospective Repeated Measures Study." International Journal of Nursing Studies, vol. 44, no. 6, 2007, pp. 882-92.
Ngamvitroj A, Kang DH. Effects of self-efficacy, social support and knowledge on adherence to PEFR self-monitoring among adults with asthma: a prospective repeated measures study. Int J Nurs Stud. 2007;44(6):882-92.
Ngamvitroj, A., & Kang, D. H. (2007). Effects of self-efficacy, social support and knowledge on adherence to PEFR self-monitoring among adults with asthma: a prospective repeated measures study. International Journal of Nursing Studies, 44(6), 882-92.
Ngamvitroj A, Kang DH. Effects of Self-efficacy, Social Support and Knowledge On Adherence to PEFR Self-monitoring Among Adults With Asthma: a Prospective Repeated Measures Study. Int J Nurs Stud. 2007;44(6):882-92. PubMed PMID: 16620821.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of self-efficacy, social support and knowledge on adherence to PEFR self-monitoring among adults with asthma: a prospective repeated measures study. AU - Ngamvitroj,Anchalee, AU - Kang,Duck-Hee, Y1 - 2006/04/18/ PY - 2005/07/30/received PY - 2006/02/16/revised PY - 2006/03/04/accepted PY - 2006/4/20/pubmed PY - 2007/9/20/medline PY - 2006/4/20/entrez SP - 882 EP - 92 JF - International journal of nursing studies JO - Int J Nurs Stud VL - 44 IS - 6 N2 - BACKGROUND: Long-term adherence to self-monitoring of peak expiratory flow rate (PEFR) is essential for early detection of declining lung function in individuals with asthma. Psychosocial and cognitive factors can influence adherence to PEFR self-monitoring behaviors. OBJECTIVES: The specific aims of this prospective, repeated measures study were to: (1) determine the effects of asthma self-efficacy, perceived satisfaction with social support and asthma knowledge on adherence to PEFR self-monitoring behavior; and (2) examine whether adherence to PEFR self-monitoring mediates the effects of psychosocial/cognitive factors on lung function and asthma symptoms in adults with asthma. DESIGN: Sixty-eight participants completed standardized questionnaires three times at baseline, 1 month, and 3 months and kept the records of PEFR self-monitoring behaviors twice a day. Data were analyzed using multiple linear regressions. Adherence rates to PEFR self-monitoring were 93.5% and 74.9% at 1 and 3 month, representing those who remained in the study (n=39). Other participants withdrew from the study. FINDINGS: Both at 1 and 3 month, psychosocial/cognitive factors as a whole did not account for a significant variance in adherence to PEFR self-monitoring. Univariate analyses, however, indicated that baseline asthma self-efficacy and asthma knowledge at 1 month were significant independent predictors for adherence to PEFR self-monitoring at 3 month. CONCLUSION: Adherence to PEFR self-monitoring did not mediate the effects of asthma self-efficacy, perceived satisfaction with social support, and asthma knowledge on lung function and asthma symptoms. Lung function was low, but participants reported low asthma symptoms, both of which remained stable over time. Because of a small sample size and high attrition, the findings of the study need to be interpreted with caution. Given the importance of long-term adherence to self-management in asthma and other chronic illnesses, factors influencing adherence need to be further investigated to set a basis for future interventions. SN - 0020-7489 UR - https://www.unboundmedicine.com/medline/citation/16620821/Effects_of_self_efficacy_social_support_and_knowledge_on_adherence_to_PEFR_self_monitoring_among_adults_with_asthma:_a_prospective_repeated_measures_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0020-7489(06)00075-7 DB - PRIME DP - Unbound Medicine ER -