Groups (n = 170) | ||||||
---|---|---|---|---|---|---|
Asthma group (n = 85) | Control group (n = 85) | |||||
Characteristics | <20 ng/ml n (%) | 20-29 ng/ml n (%) | ≥30 ng/ml n (%) | <20 ng/ml n (%) | 20-29 ng/ml n (%) | ≥30 ng/ml n (%) |
Duration of sun exposure | Groups (n = 170) | |||||
0-15 min | 20 (76.9) | 2 (7.7) | 4 (15.4) | 1 (50.0) | 0 (0.0) | 1 (50.0) |
16-30 min | 23 (71.9) | 7 (21.9) | 2 (6.2) | 7 (46.7) | 1 (6.7) | 7 (46.7) |
31-60 min | 8 (42.1) | 9 (47.4) | 2 (10.5) | 14 (31.1) | 17 (37.8) | 14 (31.1)) |
61 min and + | 6 (75.0) | 2 (25.0) | 0 (0.0) | 8 (34.8) | 7 (30.4) | 8 (34.8) |
p | 0.07 | 0.001 | ||||
Eating habits | ||||||
D vitamin insufficient | 30 (76.9) | 5 (12.8) | 4 (10.3) | 13 (61.9) | 4 (19.0) | 4 (19.0) |
D vitamin sufficient | 27 (58.7) | 15 (32.6) | 4 (8.7) | 17 (26.6) | 21 (32.8) | 26 (40.6) |
p | 0.04 | 0.013 | ||||
Vitamin D supplement | ||||||
No intake | 44 (73.3) | 15 (32.6) | 4 (8.7) | 24 (32.0) | 23 (30.7) | 28 (37.3) |
Intake | 13 (52.0) | 12 (20.0) | 4 (6.7) | 6 (60.0) | 2 (20.0) | 2 (20.0) |
p | 0.141 | 0.302 | ||||
Place of residence | ||||||
Urban | 41 (70.7) | 11 (19.0) | 6 (10.3) | 19 (30.6) | 18 (29.0) | 25 (40.3) |
Rural | 16 (59.3) | 9 (13.3) | 2 (7.4) | 11 (47.8) | 7 (30.4) | 2 (21.7) |
p | 0.342 | 0.245 |