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<title>UTas ePrints - Validity and reliability of adult recall of past sun exposure in a case-control study of Multiple Sclerosis</title>
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<meta content="van der Mei, I.A.F." name="eprints.creators_name" />
<meta content="Blizzard, Leigh" name="eprints.creators_name" />
<meta content="Ponsonby, A-L." name="eprints.creators_name" />
<meta content="Dwyer, T." name="eprints.creators_name" />
<meta content="Ingrid.vanderMei@utas.edu.au" name="eprints.creators_id" />
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<meta content="2007-04-11" name="eprints.datestamp" />
<meta content="2008-01-08 15:30:00" name="eprints.lastmod" />
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<meta content="Validity and reliability of adult recall of past sun exposure in a case-control study of Multiple Sclerosis" name="eprints.title" />
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<meta content="321202" name="eprints.subjects" />
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<meta content="validity, reliability, sun exposure, skin type, actinic damage, 25(OH)D, self-report " name="eprints.keywords" />
<meta content="The definitive version is available at http://cebp.aacrjournals.org/cgi/content/abstract/15/8/1538" name="eprints.note" />
<meta content="Objective: Measurement of past sun exposure through recall by adults has the potential for measurement error. We aimed to investigate aspects of validity and reliability of self-reported past sun exposure.
Methods: A population-based case-control study was conducted in Tasmania, on 136 cases with MS and 272 age and sex-matched community controls. Repeat interviews on 52 cases and 52 controls were done on average 11 weeks after the initial interview. Sun exposure was assessed by questionnaire and lifetime calendar. Other measurements included serum 25(OH)D, actinic damage, and skin phenotype.
Results: There was an association between recent sun exposure and serum vitamin D (Time in the sun: r=0.22, p<0.01; Activities outside: r=0.31, p<0.01 for controls), and between lifetime sun exposure and actinic damage (correlation between 0.34 (p<0.01) and 0.17 (p=0.01) for controls). The test-retest weighted kappa statistic of self-reported sun exposure ranged from 0.43 to 0.74. Recall of childhood/adolescent sun exposure by standardised questioning was no less reproducible than recall of recent adult sun exposure, and no less reliable when made with the calendar method. Comparing the questionnaire and calendar method, the measures of childhood/adolescent sun exposure had a similar predictive validity for multiple sclerosis.
Conclusions: The results of this study provide further evidence that adults are able to recall past sun exposure with demonstrated validity and reliability and present information about the possible reasons for the good reliability of recalled sun exposure measures.
" name="eprints.abstract" />
<meta content="2006-08" name="eprints.date" />
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<meta content="Cancer Epidemiology, Biomarkers & Prevention" name="eprints.publication" />
<meta content="15" name="eprints.volume" />
<meta content="8" name="eprints.number" />
<meta content="1538-1544" name="eprints.pagerange" />
<meta content="10.1158/1055-9965.EPI-05-0969" name="eprints.id_number" />
<meta content="UNSPECIFIED" name="eprints.thesis_type" />
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<meta content="http://dx.doi.org/10.1158/1055-9965.EPI-05-0969" name="eprints.official_url" />
<meta content="1. van der Mei IA, Ponsonby AL, Dwyer T, et al. Past exposure to sun, skin phenotype, and risk of multiple sclerosis: case-control study. BMJ 2003;327:316.
2. Luscombe CJ, Fryer AA, French ME, et al. Exposure to ultraviolet radiation: association with susceptibility and age at presentation with prostate cancer. Lancet 2001;358:641-2.
3. Hypponen E, Laara E, Reunanen A, Jarvelin MR, Virtanen SM. Intake of vitamin D and risk of type 1 diabetes: a birth-cohort study. Lancet 2001;358:1500-3.
4. Hughes AM, Armstrong BK, Vajdic CM, et al. Sun exposure may protect against non-Hodgkin lymphoma: a case-control study. Int J Cancer 2004;112:865-71.
5. Elwood JM, Jopson J. Melanoma and sun exposure: an overview of published studies. Int J Cancer 1997;73:198-203.
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8. English DR, Armstrong BK, Kricker A. Reproducibility of reported measurements of sun exposure in a case-control study. Cancer Epidemiol Biomarkers Prev 1998;7:857-63.
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11. Holman CD, Evans PR, Lumsden GJ, Armstrong BK. The determinants of actinic skin damage: problems of confounding among environmental and constitutional variables. Am J Epidemiol 1984;120:414-22.
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16. Kricker A, Armstrong BK, English DR, Heenan PJ. A dose-response curve for sun exposure and basal cell carcinoma. Int J Cancer 1995;60:482-8.
17. Vajdic CM, Kricker A, Giblin M, et al. Sun exposure predicts risk of ocular melanoma in Australia. Int J Cancer 2002;101:175-82.
18. Dwyer T, Blizzard L, Gies PH, Ashbolt R, Roy C. Assessment of habitual sun exposure in adolescents via questionnaire-a comparison with objective measurement using polysulphone badges. Melanoma Res 1996;6:231-9.
19. Jones G, Blizzard C, Riley MD, Parameswaran V, Greenaway TM, Dwyer T. Vitamin D levels in prepubertal children in Southern Tasmania: prevalence and determinants. Eur J Clin Nutr 1999;53:824-9.
20. Jones G, Dwyer T, Hynes KL, Parameswaran V, Greenaway TM. Vitamin D insufficiency in adolescent males in Southern Tasmania: prevalence, determinants, and relationship to bone turnover markers. Osteoporos Int 2005;16:636-41.
21. Thieden E, Agren MS, Wulf HC. Solar UVR exposures of indoor workers in a Working and a Holiday Period assessed by personal dosimeters and sun exposure diaries. Photodermatol Photoimmunol Photomed 2001;17:249-55.
22. Rosso S, Minarro R, Schraub S, Tumino R, Franceschi S, Zanetti R. Reproducibility of skin characteristic measurements and reported sun exposure history. Int J Epidemiol 2002;31:439-46.
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24. Ponsonby AL, Lucas RM, van der Mei IA. UVR, vitamin D and three autoimmune diseases--multiple sclerosis, type 1 diabetes, rheumatoid arthritis. Photochem Photobiol 2005;81:1267-75.
25. Paty DW, Oger JJ, Kastrukoff LF, et al. MRI in the diagnosis of MS: a prospective study with comparison of clinical evaluation, evoked potentials, oligoclonal banding, and CT. Neurology 1988;38:180-5.
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27. Dwyer T, Blizzard L, Ashbolt R, Plumb J, Berwick M, Stankovich JM. Cutaneous melanin density of Caucasians measured by spectrophotometry and risk of malignant melanoma, basal cell carcinoma, and squamous cell carcinoma of the skin. Am J Epidemiol 2002;155:614-21.
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31. English DR, Armstrong BK, Kricker A, Winter MG, Heenan PJ, Randell PL. Case-control study of sun exposure and squamous cell carcinoma of the skin. Int J Cancer 1998;77:347-53.
32. Feinstein AR. Indexes of contrast and quantitative significance for comparisons of two groups. Stat Med 1999;18:2557-81.
33. Blizzard L, Dwyer T, Ashbolt R. Changes in self-reported skin type associated with experience of sunburning in 14-15 year old children of northern European descent. Melanoma Res 1997;7:339-46.
34. Branstrom R, Kristjansson S, Ullen H, Brandberg Y. Stability of questionnaire items measuring behaviours, attitudes and stages of change related to sun exposure. Melanoma Res 2002;12:513-9.
35. Berwick M, Chen YT. Reliability of reported sunburn history in a case-control study of cutaneous malignant melanoma. Am J Epidemiol 1995;141:1033-7.
36. Westerdahl J, Anderson H, Olsson H, Ingvar C. Reproducibility of a self-administered questionnaire for assessment of melanoma risk. Int J Epidemiol 1996;25:245-51.
37. Kricker A, Vajdic CM, Armstrong BK. Reliability and validity of a telephone questionnaire for estimating lifetime personal sun exposure in epidemiologic studies. Cancer Epidemiol Biomarkers Prev 2005;14:2427-32.
" name="eprints.referencetext" />
<meta content="van der Mei, I.A.F. and Blizzard, Leigh and Ponsonby, A-L. and Dwyer, T. (2006) Validity and reliability of adult recall of past sun exposure in a case-control study of Multiple Sclerosis. Cancer Epidemiology, Biomarkers & Prevention, 15 (8). pp. 1538-1544." name="eprints.citation" />
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<meta content="Validity and reliability of adult recall of past sun exposure in a case-control study of Multiple Sclerosis" name="DC.title" />
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<meta content="Blizzard, Leigh" name="DC.creator" />
<meta content="Ponsonby, A-L." name="DC.creator" />
<meta content="Dwyer, T." name="DC.creator" />
<meta content="321202 Epidemiology" name="DC.subject" />
<meta content="Objective: Measurement of past sun exposure through recall by adults has the potential for measurement error. We aimed to investigate aspects of validity and reliability of self-reported past sun exposure.
Methods: A population-based case-control study was conducted in Tasmania, on 136 cases with MS and 272 age and sex-matched community controls. Repeat interviews on 52 cases and 52 controls were done on average 11 weeks after the initial interview. Sun exposure was assessed by questionnaire and lifetime calendar. Other measurements included serum 25(OH)D, actinic damage, and skin phenotype.
Results: There was an association between recent sun exposure and serum vitamin D (Time in the sun: r=0.22, p<0.01; Activities outside: r=0.31, p<0.01 for controls), and between lifetime sun exposure and actinic damage (correlation between 0.34 (p<0.01) and 0.17 (p=0.01) for controls). The test-retest weighted kappa statistic of self-reported sun exposure ranged from 0.43 to 0.74. Recall of childhood/adolescent sun exposure by standardised questioning was no less reproducible than recall of recent adult sun exposure, and no less reliable when made with the calendar method. Comparing the questionnaire and calendar method, the measures of childhood/adolescent sun exposure had a similar predictive validity for multiple sclerosis.
Conclusions: The results of this study provide further evidence that adults are able to recall past sun exposure with demonstrated validity and reliability and present information about the possible reasons for the good reliability of recalled sun exposure measures.
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<h1 class="ep_tm_pagetitle">Validity and reliability of adult recall of past sun exposure in a case-control study of Multiple Sclerosis</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">van der Mei, I.A.F.</span> and <span class="person_name">Blizzard, Leigh</span> and <span class="person_name">Ponsonby, A-L.</span> and <span class="person_name">Dwyer, T.</span> (2006) <xhtml:em>Validity and reliability of adult recall of past sun exposure in a case-control study of Multiple Sclerosis.</xhtml:em> Cancer Epidemiology, Biomarkers & Prevention, 15 (8). pp. 1538-1544.</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/888/1/van_der_Mei_CancerEp_Biomarkers_2006.PDF"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/888/1/van_der_Mei_CancerEp_Biomarkers_2006.PDF"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />740Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1158/1055-9965.EPI-05-0969">http://dx.doi.org/10.1158/1055-9965.EPI-05-0969</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Objective: Measurement of past sun exposure through recall by adults has the potential for measurement error. We aimed to investigate aspects of validity and reliability of self-reported past sun exposure.
Methods: A population-based case-control study was conducted in Tasmania, on 136 cases with MS and 272 age and sex-matched community controls. Repeat interviews on 52 cases and 52 controls were done on average 11 weeks after the initial interview. Sun exposure was assessed by questionnaire and lifetime calendar. Other measurements included serum 25(OH)D, actinic damage, and skin phenotype.
Results: There was an association between recent sun exposure and serum vitamin D (Time in the sun: r=0.22, p<0.01; Activities outside: r=0.31, p<0.01 for controls), and between lifetime sun exposure and actinic damage (correlation between 0.34 (p<0.01) and 0.17 (p=0.01) for controls). The test-retest weighted kappa statistic of self-reported sun exposure ranged from 0.43 to 0.74. Recall of childhood/adolescent sun exposure by standardised questioning was no less reproducible than recall of recent adult sun exposure, and no less reliable when made with the calendar method. Comparing the questionnaire and calendar method, the measures of childhood/adolescent sun exposure had a similar predictive validity for multiple sclerosis.
Conclusions: The results of this study provide further evidence that adults are able to recall past sun exposure with demonstrated validity and reliability and present information about the possible reasons for the good reliability of recalled sun exposure measures.
</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Additional Information:</th><td valign="top" class="ep_row">The definitive version is available at http://cebp.aacrjournals.org/cgi/content/abstract/15/8/1538</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">validity, reliability, sun exposure, skin type, actinic damage, 25(OH)D, self-report </td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/321202.html">320000 Medical and Health Sciences > 321200 Public Health and Health Services > 321202 Epidemiology</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">888</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Ingrid A F van der Mei</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">11 Apr 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=888;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=888">item control page</a></p>
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