Self reported skin morbidity and ethnicity: a population-based study in a Western community

Dalgard, Florence; Holm, Jan Øivind; Svensson, Åke; Kumar, Bernadette N.; Sundby, Johanne

doi:10.1186/1471-5945-7-4

Cited by 35 publications

(28 citation statements)

References 28 publications

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“…Because pruritus is a symptom associated with many medical conditions, and because not everyone with chronic pmritus may present the symptom to a physician, the need for populationbased studies estimating the prevalence of the symptom becomes apparent. Compared with other large-scale studies measuring prurigo and allied conditions (14), acute pruritus within the last week ( 15,16), or undefined chronic pruritus within the past 2 years (17), the estimates arrived at in this study are higher. Chronic pruritus requires pruritus to be present for a minimum of 6 weeks (11), hence one could argue that the point, 12-month and lifetime prevalence of chronic pruritus should be lower compared with, for instance, acute pruritus within the last week assuming the study populations are otherwise comparable.…”

Section: Discussionmentioning

confidence: 50%

“…Direct comparisons with other studies are not possible, since the effect of residential category was not addressed previously. Dalgard et al (15,16) and Rea et al (14) studied urban samples. Analyses stratified by living area were not reported by Wolkenstein et al (17).…”

Section: Discussionmentioning

confidence: 97%

“…Population-based studies, such as the Lambeth study (14), have shown a prevalence of prurigo and allied conditions of 8.2%, while a Norwegian study (15,16) reported a prevalence of acute pruritus within the last week of 8.4% in an urban population aged 30-76 years. A population-based study in France estimated the prevalence of pruritus at 12.4% during a 2-year period (17); however, no description was provided of how chronic pruritus was defined.…”

mentioning

confidence: 98%

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Prevalence, correlates and characteristics of chronic pruritus: a population-based cross-sectional study

Matterne

Apfelbacher²,

Loerbroks³

et al. 2011

Acta Derm Venerol

211

165

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Pruritus is the most frequent symptom in dermatology. Its impact on quality of life is substantial. Epidemiological data on chronic pruritus (>6 weeks) at the population level is sparse, but is important in order to understand the burden and risk factors of this distressing symptom. The aim of this population-based cross-sectional study was to estimate the point, 12-month and lifetime prevalence of chronic pruritus, assessing its association with sociodemographic variables and describing its characteristics. A validated postal questionnaire was sent to 4,500 individuals in from the German General population. Three contact attempts were made. The response rate was 57.8% (n=2,540). The point prevalence of chronic pruritus was 13.5% (95% confidence interval (95% CI) 12.2-14.9%), 12-month prevalence 16.4% (15.0-17.9%) and lifetime prevalence 22.0% (20.4-23.7%). Multivariate analyses found only ethnic origin independently associated with chronic pruritus. The impact of chronic pruritus on quality of life and emotional well-being appears to depend on severity rather than on the presence of the symptom alone. This is the first study to investigate various prevalence estimates of chronic pruritus at the population level. Despite its limitations (self-report and potential self-selection) this study indicates a high burden of chronic pruritus in society.

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Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 97%

mentioning

confidence: 98%

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Prevalence, correlates and characteristics of chronic pruritus: a population-based cross-sectional study

Matterne

Apfelbacher²,

Loerbroks³

et al. 2011

Acta Derm Venerol

211

165

View full text Add to dashboard Cite

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“…However, many studies have utilized self-administered questionnaires as well as self-report diagnosis to determine acne prevalence in their study population [8,14,15,16,17]. The few studies that have looked at this problem have concluded that generally there is poor or low agreement between self-report and trained observer acne evaluations [8, 16, 18].…”

Section: Discussionmentioning

confidence: 99%

Validity of Subject Self-Report for Acne

et al. 2008

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Background/Objective: Acne prevalence studies often use subject self-report as data source. Our aim was to evaluate the validity of acne self-report. Methods: Responses of university students to an acne questionnaire were compared to the trained observer’s concurrent examination of acne. The validity of self-report was measured by sensitivity, specificity, positive predictive value and negative predictive value. Agreement was measured by Cohen’s kappa and correct classification percentage. Results: The sensitivity of self-report was 0.55 (95% CI 0.47–0.63), the specificity was 0.72 (95% CI 0.63–0.80), the positive predictive value was 0.70 (95% CI 0.61–0.78), and the negative predictive value was 0.57 (95% CI 0.49–0.65). Cohen’s kappa was 0.26 (95% CI 0.15–0.38) and correct classification percentage was 63. Conclusions: Validity of self-report was moderate at best and agreement was fair, indicating that college students could not accurately report that they have acne. This is likely not sufficient for clinical or research activities or to assure that individuals who self-guide their acne therapy actually have acne.

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“…However, to our knowledge, no longitudinal study on the occurrence of chronic pruritus and its risk factors has been conducted to date. So far, cross-sectional data on sociodemographic factors have failed to show a consistent pattern of associations (4,6,7), while studies examining other associations (e.g. psychosocial) usually look at a limited number of variables simultaneously (8)(9)(10)(11) or at associations in discrete patient samples (12)(13)(14).…”

mentioning

confidence: 96%

Incidence and Determinants of Chronic Pruritus: A Population-based Cohort Study

Matterne¹,

Apfelbacher²,

Vogelgsang³

et al. 2013

Acta Derm Venerol

132

121

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Epidemiological data on chronic pruritus (> 6 weeks) in the general population are sparse. We aimed to provide data on the incidence and prevalence of chronic pruritus, and identify its determinants based on cross-sectional and longitudinal analyses. A cohort of 1,190 participants from a cross-sectional baseline-study (response rate: 57.8%) was followed up after one year. The questionnaire assessed occurrence of chronic pruritus, medical, lifestyle and psychosocial variables. Incident chronic pruritus was defined as reported chronic pruritus at follow-up in those subjects free-of-the-symptom at baseline. Cross-sectional analyses of data from the follow-up assessments addressed potential associations of medical, lifestyle and psychosocial factors with prevalent chronic pruritus. Longitudinal analyses examined sociodemographic factors as potential predictors of incident chronic pruritus. The follow-up response rate was 83.1%. The mean age of subjects was 56 years, and 58% were female. The 12-month cumulative-incidence equalled 7.0% (95% confidence interval (95% CI) 5.2-9.2%. Lifetime prevalence was 25.5% (95% CI 21.8-27.8%). Incidence was significantly associated with age. Determinants of prevalent chronic pruritus in multi-variable analyses were: liver disease, asthma, eczema and dry skin within the medical domain, an elevated body mass index within the lifestyle domain and higher anxiety scores within the psychosocial domain. Findings suggest a considerable 12-month incidence and lifetime prevalence and provide important directions for future research.

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Self reported skin morbidity and ethnicity: a population-based study in a Western community

Cited by 35 publications

References 28 publications

Prevalence, correlates and characteristics of chronic pruritus: a population-based cross-sectional study

Prevalence, correlates and characteristics of chronic pruritus: a population-based cross-sectional study

Validity of Subject Self-Report for Acne

Incidence and Determinants of Chronic Pruritus: A Population-based Cohort Study

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