In this study, 335 men aged 18 to 70 years were
included. Distributions of continuous variables were
presented as mean±standard deviation values. P
values were estimated by using the analysis of
variance. The distributions of categorical variables
were presented as frequencies, and P values were
tested for Fisher’s exact probability. The principal
component factor analysis was used to obtain the
dietary patterns. The Pearson correlation analysis
was used to determine the correlation of vitamin D
status with dietary patterns and outdoor work or
activities. All statistical analyses were conducted by
using the Statistical Package for the Social Sciences
software version 17.0 (SPSS Inc. Chicago, Illinois,
USA).
In our study, the average status of serum
vitamin D level was 33.26 ng/mL in men highly
exposed to sunlight in the Zhejiang province. When
compared with the results from the tropics region,
the result was close to the serum 25(OH)D level of