Serum Levels of 25-Hydroxy-Vitamin D3 Among Sun-protected Outdoor Workers in Israel (pages 1507–1512)
Esther Azizi, Felix Pavlotsky, Avraham Kudish, Pazit Flint, Arie Solomon, Yehuda Lerman, Bernice Oberman and Siegal Sadetzki
Article first published online: 30 AUG 2012 | DOI: 10.1111/j.1751-1097.2012.01196.x
25-OH-D3 serum levels were measured in two successive winters, 8 (interim) and 20 months after initiation of the study, in three groups of male outdoor workers, enrolled in either a complete, partial, or minimal sun protection program. No intragroup or intergroup differences were observed between interim- and postintervention mean 25-OH-D3 levels, which were close to 30 ng mL−1. Significant risk factors for postintervention 25-OH-D3 levels >33.8 ng mL−1 (a surrogate for reduced sun protection) were previous sunburn episodes and younger age. Borderline significant effects were seen for persons of Western, compared with Eastern paternal origin and for minimal intervention.