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Illness perceptions and glycaemic control in diabetes: a systematic review with meta-analysis.
Diabet Med 2011; 28(11):1300-10DM

Abstract

AIMS

The Illness Perception Questionnaire, the Revised Illness Perception Questionnaire and the Brief Illness Perception Questionnaire have been widely used to measure people's beliefs about diabetes. This review aimed to synthesize evidence on the relationship between the dimensions of the Illness Perception Questionnaire, the Revised Illness Perception Questionnaire and the Brief Illness Perception Questionnaire and HbA(1c) level in adults with diabetes.

METHODS

A systematic literature search was carried out in January 2010 to identify relevant studies. Random-effects model meta-analyses were conducted with cross-sectional data to quantify the relationship between Illness Perception Questionnaire dimensions and HbA(1c) across studies. Randomized controlled trials that targeted Illness Perception Questionnaire perceptions and included HbA(1c) as an outcome measure were discussed in a narrative review.

RESULTS

Nine cross-sectional studies and four randomized controlled trials were included. Stronger Identity (r+=0.14), Consequences (r+=0.14), Timeline Cyclical (r+ = 0.26) Concern (r+= 0.21), and Emotional Representations (r+=0.18) perceptions had significant positive associations with HbA(1c.) Greater Personal Control (r+=- 0.12) was negatively associated with HbA(1c) . For all relationships, heterogeneity tests were non-significant, suggesting little variability in effect size estimates. Two of the four randomized controlled trials successfully changed illness perceptions, with one also reporting an intervention group reduction in HbA(1c).

CONCLUSIONS

Some Illness Perception Questionnaire dimensions had small significant associations with HbA(1c) , although the direction of these associations remains unclear. There was also tentative evidence that illness perceptions can be positively changed through targeted intervention and that these changes may also impact on glycaemic control. Future research could benefit from tailoring intervention content to perceptions that are most highly associated with HbA(1c).

Authors+Show Affiliations

Primary Medical Care, School of Psychology, University of Southampton, Southampton Primary Care, Hull York Medical School, York, UK. jem1d08@soton.ac.ukNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Meta-Analysis
Research Support, Non-U.S. Gov't
Review
Systematic Review

Language

eng

PubMed ID

21418098

Citation

Mc Sharry, J, et al. "Illness Perceptions and Glycaemic Control in Diabetes: a Systematic Review With Meta-analysis." Diabetic Medicine : a Journal of the British Diabetic Association, vol. 28, no. 11, 2011, pp. 1300-10.
Mc Sharry J, Moss-Morris R, Kendrick T. Illness perceptions and glycaemic control in diabetes: a systematic review with meta-analysis. Diabet Med. 2011;28(11):1300-10.
Mc Sharry, J., Moss-Morris, R., & Kendrick, T. (2011). Illness perceptions and glycaemic control in diabetes: a systematic review with meta-analysis. Diabetic Medicine : a Journal of the British Diabetic Association, 28(11), pp. 1300-10. doi:10.1111/j.1464-5491.2011.03298.x.
Mc Sharry J, Moss-Morris R, Kendrick T. Illness Perceptions and Glycaemic Control in Diabetes: a Systematic Review With Meta-analysis. Diabet Med. 2011;28(11):1300-10. PubMed PMID: 21418098.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Illness perceptions and glycaemic control in diabetes: a systematic review with meta-analysis. AU - Mc Sharry,J, AU - Moss-Morris,R, AU - Kendrick,T, PY - 2011/3/23/entrez PY - 2011/3/23/pubmed PY - 2012/1/4/medline SP - 1300 EP - 10 JF - Diabetic medicine : a journal of the British Diabetic Association JO - Diabet. Med. VL - 28 IS - 11 N2 - AIMS: The Illness Perception Questionnaire, the Revised Illness Perception Questionnaire and the Brief Illness Perception Questionnaire have been widely used to measure people's beliefs about diabetes. This review aimed to synthesize evidence on the relationship between the dimensions of the Illness Perception Questionnaire, the Revised Illness Perception Questionnaire and the Brief Illness Perception Questionnaire and HbA(1c) level in adults with diabetes. METHODS: A systematic literature search was carried out in January 2010 to identify relevant studies. Random-effects model meta-analyses were conducted with cross-sectional data to quantify the relationship between Illness Perception Questionnaire dimensions and HbA(1c) across studies. Randomized controlled trials that targeted Illness Perception Questionnaire perceptions and included HbA(1c) as an outcome measure were discussed in a narrative review. RESULTS: Nine cross-sectional studies and four randomized controlled trials were included. Stronger Identity (r+=0.14), Consequences (r+=0.14), Timeline Cyclical (r+ = 0.26) Concern (r+= 0.21), and Emotional Representations (r+=0.18) perceptions had significant positive associations with HbA(1c.) Greater Personal Control (r+=- 0.12) was negatively associated with HbA(1c) . For all relationships, heterogeneity tests were non-significant, suggesting little variability in effect size estimates. Two of the four randomized controlled trials successfully changed illness perceptions, with one also reporting an intervention group reduction in HbA(1c). CONCLUSIONS: Some Illness Perception Questionnaire dimensions had small significant associations with HbA(1c) , although the direction of these associations remains unclear. There was also tentative evidence that illness perceptions can be positively changed through targeted intervention and that these changes may also impact on glycaemic control. Future research could benefit from tailoring intervention content to perceptions that are most highly associated with HbA(1c). SN - 1464-5491 UR - https://www.unboundmedicine.com/medline/citation/21418098/Illness_perceptions_and_glycaemic_control_in_diabetes:_a_systematic_review_with_meta_analysis_ L2 - https://doi.org/10.1111/j.1464-5491.2011.03298.x DB - PRIME DP - Unbound Medicine ER -