Table 2.

Correlations between serum 25(OH)D levels and self-reported sun exposure at T1

Cases (n = 136)
Controls (n = 262)
CorrelationPCorrelationP
Time in the sun in summer in the last 3 years0.24<0.010.20<0.01
Time in the sun in winter in the last 3 years0.190.030.16<0.01
Time in the sun in the last 3 years *0.31<0.010.22<0.01
Activities outside in summer in the last 3 years0.30<0.010.22<0.01
Activities outside in winter in the last 3 years0.190.030.18<0.01
Activities outside in the last 3 years*0.39<0.010.31<0.01
Time in the sun in summer in the last 3 years (calendar)0.23<0.010.20<0.01
Time in the sun in summer in the last year (calendar)0.22<0.010.21<0.01
  • * Sun exposure in summer for subjects who had their serum sample taken in the summer and autumn months and sun exposure in winter for subjects who had their serum sample taken in the winter and spring months.