Sun exposure questionnaire predicts circulating 25-hydroxyvitamin D concentrations in Caucasian hospital workers in southern Italy

H. E C Hanwell, R. Vieth, D. E C Cole, A. Scillitani, S. Modoni, V. Frusciante, G. Ritrovato, I. Chiodini, S. Minisola, V. Carnevale

Research output: Contribution to journalArticle

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Abstract

Introduction: Recent sun exposure should correlate with circulating 25-hydroxyvitamin D [25(OH)D] due to ultraviolet B (UVB)-catalyzed cutaneous synthesis of vitamin D. Methods: A Sun Exposure Score was calculated for healthy adults using a recall questionnaire assessing daily Time in Sun (30. min) and Skin Exposure (face/hands; face/hands and arms; face/hands and legs; and " bathing suit" ) for 1 week in each of the winter and summer (n=47 and 23, respectively; n=18 participated in both). Concentrations of 25(OH)D were measured by DiaSorin RIA on end-of-week sera. Results: Mean serum 25(OH)D was higher in summer than winter (58.6 ± 16.5 nmol/L vs 38.8 ± 29.0. nmol/L, respectively, P=0.003 unpaired). The calculated Sun Exposure Score correlated strongly with serum 25(OH)D during summer (Spearman's rho. =0.59, P=0.003); based on the Pearson coefficient of determination, summer Sun Exposure Score explained 38% of the variability in summer serum 25(OH)D. The Sun Exposure Score did not correlate with 25(OH)D in the winter (rho. =0.19, P=0.210). The summer correlation was largely explained by the Time in Sun (rho. =0.58, P=0.004) rather than area of Skin Exposed (rho. =0.10, P=0.660). Although there was a correlation between winter and summer Sun Exposure Scores (rho. =0.63, P=0.005), there was no summer vs. winter correlation in serum 25(OH)D (rho. =0.08, P=0.76). Conclusion: This simple 1-week sun exposure recall questionnaire predicted summer serum 25(OH)D concentrations, accounting for 38% of the variability in 25(OH)D among healthy Italian adults.

Original languageEnglish
Pages (from-to)334-337
Number of pages4
JournalJournal of Steroid Biochemistry and Molecular Biology
Volume121
Issue number1-2
DOIs
Publication statusPublished - Jul 2010

Fingerprint

Solar System
Sun
Italy
Serum
Hand
Skin
25-hydroxyvitamin D
Surveys and Questionnaires
Vitamin D
Leg
Arm

Keywords

  • Caucasian
  • Questionnaire
  • Sun Exposure
  • UVB
  • Vitamin D

ASJC Scopus subject areas

  • Molecular Medicine
  • Endocrinology, Diabetes and Metabolism
  • Molecular Biology
  • Cell Biology
  • Endocrinology
  • Clinical Biochemistry
  • Biochemistry
  • Medicine(all)

Cite this

Sun exposure questionnaire predicts circulating 25-hydroxyvitamin D concentrations in Caucasian hospital workers in southern Italy. / Hanwell, H. E C; Vieth, R.; Cole, D. E C; Scillitani, A.; Modoni, S.; Frusciante, V.; Ritrovato, G.; Chiodini, I.; Minisola, S.; Carnevale, V.

In: Journal of Steroid Biochemistry and Molecular Biology, Vol. 121, No. 1-2, 07.2010, p. 334-337.

Research output: Contribution to journalArticle

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abstract = "Introduction: Recent sun exposure should correlate with circulating 25-hydroxyvitamin D [25(OH)D] due to ultraviolet B (UVB)-catalyzed cutaneous synthesis of vitamin D. Methods: A Sun Exposure Score was calculated for healthy adults using a recall questionnaire assessing daily Time in Sun (30. min) and Skin Exposure (face/hands; face/hands and arms; face/hands and legs; and {"} bathing suit{"} ) for 1 week in each of the winter and summer (n=47 and 23, respectively; n=18 participated in both). Concentrations of 25(OH)D were measured by DiaSorin RIA on end-of-week sera. Results: Mean serum 25(OH)D was higher in summer than winter (58.6 ± 16.5 nmol/L vs 38.8 ± 29.0. nmol/L, respectively, P=0.003 unpaired). The calculated Sun Exposure Score correlated strongly with serum 25(OH)D during summer (Spearman's rho. =0.59, P=0.003); based on the Pearson coefficient of determination, summer Sun Exposure Score explained 38{\%} of the variability in summer serum 25(OH)D. The Sun Exposure Score did not correlate with 25(OH)D in the winter (rho. =0.19, P=0.210). The summer correlation was largely explained by the Time in Sun (rho. =0.58, P=0.004) rather than area of Skin Exposed (rho. =0.10, P=0.660). Although there was a correlation between winter and summer Sun Exposure Scores (rho. =0.63, P=0.005), there was no summer vs. winter correlation in serum 25(OH)D (rho. =0.08, P=0.76). Conclusion: This simple 1-week sun exposure recall questionnaire predicted summer serum 25(OH)D concentrations, accounting for 38{\%} of the variability in 25(OH)D among healthy Italian adults.",
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T1 - Sun exposure questionnaire predicts circulating 25-hydroxyvitamin D concentrations in Caucasian hospital workers in southern Italy

AU - Hanwell, H. E C

AU - Vieth, R.

AU - Cole, D. E C

AU - Scillitani, A.

AU - Modoni, S.

AU - Frusciante, V.

AU - Ritrovato, G.

AU - Chiodini, I.

AU - Minisola, S.

AU - Carnevale, V.

PY - 2010/7

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N2 - Introduction: Recent sun exposure should correlate with circulating 25-hydroxyvitamin D [25(OH)D] due to ultraviolet B (UVB)-catalyzed cutaneous synthesis of vitamin D. Methods: A Sun Exposure Score was calculated for healthy adults using a recall questionnaire assessing daily Time in Sun (30. min) and Skin Exposure (face/hands; face/hands and arms; face/hands and legs; and " bathing suit" ) for 1 week in each of the winter and summer (n=47 and 23, respectively; n=18 participated in both). Concentrations of 25(OH)D were measured by DiaSorin RIA on end-of-week sera. Results: Mean serum 25(OH)D was higher in summer than winter (58.6 ± 16.5 nmol/L vs 38.8 ± 29.0. nmol/L, respectively, P=0.003 unpaired). The calculated Sun Exposure Score correlated strongly with serum 25(OH)D during summer (Spearman's rho. =0.59, P=0.003); based on the Pearson coefficient of determination, summer Sun Exposure Score explained 38% of the variability in summer serum 25(OH)D. The Sun Exposure Score did not correlate with 25(OH)D in the winter (rho. =0.19, P=0.210). The summer correlation was largely explained by the Time in Sun (rho. =0.58, P=0.004) rather than area of Skin Exposed (rho. =0.10, P=0.660). Although there was a correlation between winter and summer Sun Exposure Scores (rho. =0.63, P=0.005), there was no summer vs. winter correlation in serum 25(OH)D (rho. =0.08, P=0.76). Conclusion: This simple 1-week sun exposure recall questionnaire predicted summer serum 25(OH)D concentrations, accounting for 38% of the variability in 25(OH)D among healthy Italian adults.

AB - Introduction: Recent sun exposure should correlate with circulating 25-hydroxyvitamin D [25(OH)D] due to ultraviolet B (UVB)-catalyzed cutaneous synthesis of vitamin D. Methods: A Sun Exposure Score was calculated for healthy adults using a recall questionnaire assessing daily Time in Sun (30. min) and Skin Exposure (face/hands; face/hands and arms; face/hands and legs; and " bathing suit" ) for 1 week in each of the winter and summer (n=47 and 23, respectively; n=18 participated in both). Concentrations of 25(OH)D were measured by DiaSorin RIA on end-of-week sera. Results: Mean serum 25(OH)D was higher in summer than winter (58.6 ± 16.5 nmol/L vs 38.8 ± 29.0. nmol/L, respectively, P=0.003 unpaired). The calculated Sun Exposure Score correlated strongly with serum 25(OH)D during summer (Spearman's rho. =0.59, P=0.003); based on the Pearson coefficient of determination, summer Sun Exposure Score explained 38% of the variability in summer serum 25(OH)D. The Sun Exposure Score did not correlate with 25(OH)D in the winter (rho. =0.19, P=0.210). The summer correlation was largely explained by the Time in Sun (rho. =0.58, P=0.004) rather than area of Skin Exposed (rho. =0.10, P=0.660). Although there was a correlation between winter and summer Sun Exposure Scores (rho. =0.63, P=0.005), there was no summer vs. winter correlation in serum 25(OH)D (rho. =0.08, P=0.76). Conclusion: This simple 1-week sun exposure recall questionnaire predicted summer serum 25(OH)D concentrations, accounting for 38% of the variability in 25(OH)D among healthy Italian adults.

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