Self-reported skin complaints: validation of a questionnaire for population surveys

Dalgard, Florence; Svensson, Åke; Holm, J.-O. H.; Sundby, Johanne

doi:10.1046/j.1365-2133.2003.05596.x

Cited by 55 publications

(65 citation statements)

References 9 publications

(16 reference statements)

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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]. Many studies have also concluded that in the community, the knowledge level about acne among young adults and teenagers is generally very low [7, 8, 17, 19].…”

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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Section: Discussionmentioning

confidence: 99%

Validity of Subject Self-Report for Acne

et al. 2008

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“…For other micronutrient levels, i.e. vitamin B 12 , folic acid and ceruloplasmin, correlations were very low and not statistically significant. To estimate the relative influences of these micronutrients on health status, a multinomial logistic regression was performed after accounting for differences in age and weight.…”

Section: Resultsmentioning

confidence: 99%

Association of micronutrient status with subclinical health complaints in lactovegetarian adults

Chiplonkar¹,

Agte²

2007

Food & Nutrition Research

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Background: Micronutrient malnutrition has many adverse effects on human health, not all of which may be clinically evident. Objective: To explore linkages between subclinical health complaints and micronutrient status in lactovegetarian Indian adults. Design: Health was assessed in 502 lactovegetarian adults (275 men, 227 women, aged 30.699 years) using a structured questionnaire for existing complaints with severity of symptoms on a four-point scale and morbidity over the preceding month. Subjects were categorized as having no complaints (NC), or complaints of mild (MI) or moderate (MD) degree, using cluster analysis. Diet was recorded by a semi-quantitative food frequency questionnaire and nutrient intakes were computed using standard databases. Levels of haemoglobin, vitamin C, retinol, ceruloplasmin, riboflavin (EGRAC), folic acid, vitamin B 12 and erythrocyte membrane zinc (RBCMZn) in blood were estimated. Results: Health complaints of a mild and moderate degree were observed in 30.5% and 24.7% of the subjects, respectively. Average dietary intakes of b-carotene, riboflavin, iron and zinc were observed to be only about half of the recommended dietary intakes. There was a decreasing trend in micronutrient intakes from NC to MD. Intakes of iron, zinc, niacin and thiamin of men from the MI group tended to be lower than in the NC group (pB0.1). Men from the MD group had significantly lower intakes of calcium, zinc and riboflavin than those from the NC group (p B0.05). The intakes of these nutrients in women from NC, MI and MD were not significantly different. Multinomial logistic regression of health status revealed that plasma vitamin C and RBCMZn were negatively associated with MD and RBCMZn with MI. Conclusions: The study indicates a need to increase micronutrient intakes of vegetarian populations, especially regarding vitamin C and zinc for maintenance of health.

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“…The item ‘have you had itchy skin?’ is part of a validated questionnaire on skin complaints in the population, the Skin Score [17]. The measurement of a subjective symptom like itch is challenging [18]; however, the survey data and statistical analysis supported dichotomization of the itch variable allowing grouping of reported itching ‘quite a lot’ and ‘very much’ as a single positive answer.…”

Section: Discussionmentioning

confidence: 99%

Are Itch and Chronic Pain Associated in Adults? Results of a Large Population Survey in Norway

2007

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Background: Few large-scale epidemiological studies have been performed on the prevalence of itch. Itch and pain are common and complex symptoms which contribute to the burden of disease. Although there is antagonistic interaction between itch and pain, there are also many similarities in their pathophysiology. Objective: To investigate possible associations between chronic itch and chronic pain in a large population. Methods: The design was cross-sectional. 18,770 adults completed a self-administered questionnaire addressing sociodemographic factors, psychosocial factors and self-reported health including chronic itch and chronic pain. Results: Individuals reporting pain and itch were more likely to be women (80 and 60%, respectively, compared to 55% in the total sample), had a lower income (49 and 37% compared to 32%), were more likely to be depressed (36 and 20% compared to 11%) and reported poorer well-being (74 and 34% compared to 25%). In an adjusted logistic regression, chronic pain was strongly associated with chronic itch (OR = 1.79, 95% CI = 1.43–2.24). Conclusion: This study demonstrates the association of chronic itch and chronic pain and points out the need of further studies that focus on both symptoms in dermatological diseases.

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Self-reported skin complaints: validation of a questionnaire for population surveys

Cited by 55 publications

References 9 publications

Validity of Subject Self-Report for Acne

Validity of Subject Self-Report for Acne

Association of micronutrient status with subclinical health complaints in lactovegetarian adults

Are Itch and Chronic Pain Associated in Adults? Results of a Large Population Survey in Norway

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