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Table 2 Association of Vitamin D status with life style factors

From: Vitamin D status in Kancheepuram District, Tamil Nadu, India

Variables Groups n Plasma 25OH vitamin D status P value
Deficient (< 12 ng/mL) Insufficient (12–20 ng/mL) Sufficient (> 20 ng/mL)
Sun exposure time per day 15–30 min 29 10 (34.5) 12 (41.4) 7 (24.1) 0.0001
30–60 min 137 27 (19.7) 68 (49.6) 42 (30.7)
60–120 min 84 9 (10.7) 36 (42.9) 39 (46.4)
> 120 min 174 13 (7.5) 59 (33.9) 102 (58.6)
Body portions exposed to sunlight Face, upper and lower limbs exposed 86 10 (11.6) 26 (30.2) 50 (58.1) 0.0196
Face and upper limbs exposed 338 49 (14.5) 149 (44.1) 140 (41.4)
Usage of sun screen No 408 55 (13.5) 164 (40.2) 189 (46.3) 0.0066
Yes 16 4 (25) 11 (68.8) 1 (6.3)
Usage of vitamin D supplements No 408 58 (14.2) 170 (41.7) 180 (44.1) 0.3218
Yes 16 1 (6.3) 5 (31.3) 10 (62.5)
Awareness of vitamin D No 356 48 (13.5) 137 (38.5) 171 (48) 0.0081
Yes 68 11 (16.2) 38 (55.9) 19 (27.9)