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Vaucher P, Bischoff T, Diserens EA, et al. Detecting and measuring deprivation in primary care: development, reliability and validity of a self-reported questionnaire: the DiPCare-Q. BMJ Open. 2012;2(1):e000692doi: 10.1136/bmjopen-2011-000692.
Vaucher, P., Bischoff, T., Diserens, E. A., Herzig, L., Meystre-Agustoni, G., Panese, F., Favrat, B., Sass, C., & Bodenmann, P. (2012). Detecting and measuring deprivation in primary care: development, reliability and validity of a self-reported questionnaire: the DiPCare-Q. BMJ open, 2(1), e000692. https://doi.org/10.1136/bmjopen-2011-000692
Vaucher, Paul, et al. "Detecting and measuring deprivation in primary care: development, reliability and validity of a self-reported questionnaire: the DiPCare-Q." BMJ open vol. 2,1 (2012): e000692. doi: https://doi.org/10.1136/bmjopen-2011-000692
Vaucher P, Bischoff T, Diserens EA, Herzig L, Meystre-Agustoni G, Panese F, Favrat B, Sass C, Bodenmann P. Detecting and measuring deprivation in primary care: development, reliability and validity of a self-reported questionnaire: the DiPCare-Q. BMJ Open. 2012 Feb 03;2(1):e000692. doi: 10.1136/bmjopen-2011-000692. Print 2012. PMID: 22307103; PMCID: PMC3274718.
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BMJ Open. 2012 Feb 03;2(1):e000692. doi: 10.1136/bmjopen-2011-000692. Print 2012.

Detecting and measuring deprivation in primary care: development, reliability and validity of a self-reported questionnaire: the DiPCare-Q.

BMJ open

Paul Vaucher, Thomas Bischoff, Esther-Amélie Diserens, Lilli Herzig, Giovanna Meystre-Agustoni, Francesco Panese, Bernard Favrat, Catherine Sass, Patrick Bodenmann

Affiliations

  1. Department of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland.

PMID: 22307103 PMCID: PMC3274718 DOI: 10.1136/bmjopen-2011-000692

Abstract

OBJECTIVES: Advances in biopsychosocial science have underlined the importance of taking social history and life course perspective into consideration in primary care. For both clinical and research purposes, this study aims to develop and validate a standardised instrument measuring both material and social deprivation at an individual level.

METHODS: We identified relevant potential questions regarding deprivation using a systematic review, structured interviews, focus group interviews and a think-aloud approach. Item response theory analysis was then used to reduce the length of the 38-item questionnaire and derive the deprivation in primary care questionnaire (DiPCare-Q) index using data obtained from a random sample of 200 patients during their planned visits to an ambulatory general internal medicine clinic. Patients completed the questionnaire a second time over the phone 3 days later to enable us to assess reliability. Content validity of the DiPCare-Q was then assessed by 17 general practitioners. Psychometric properties and validity of the final instrument were investigated in a second set of patients. The DiPCare-Q was administered to a random sample of 1898 patients attending one of 47 different private primary care practices in western Switzerland along with questions on subjective social status, education, source of income, welfare status and subjective poverty.

RESULTS: Deprivation was defined in three distinct dimensions: material (eight items), social (five items) and health deprivation (three items). Item consistency was high in both the derivation (Kuder-Richardson Formula 20 (KR20) =0.827) and the validation set (KR20 =0.778). The DiPCare-Q index was reliable (interclass correlation coefficients=0.847) and was correlated to subjective social status (r(s)=-0.539).

CONCLUSION: The DiPCare-Q is a rapid, reliable and validated instrument that may prove useful for measuring both material and social deprivation in primary care.

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