Are Shiftwork and Indoor Work Related to D3 Vitamin Deficiency? A Systematic Review of Current Evidences
Table 2
Characteristics of systematic review.
First author
Country
Year
Main result
Amstar score
Sowa
Canada
2017
Compared to outdoor workers, indoor workers had lower 25-hydroxyvitamin D (25-(OH)D) levels (40.6 ± 13.3 vs. 66.7 ± 16.7 nmol/L; ). Mean 25-(OH)D levels (in nmol/L) in shiftworkers, lead/smelter workers, and coalminers were 33.8 ± 10.0, 77.8 ± 5.4, and 56.6 ± 28.4, respectively