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Table 1 The serum levels of 25(OH)D by the characteristics of participants

From: Non-association between low vitamin d levels and aeroallergen-positivity evaluated using multiple allergen simultaneous test in Korean adults

  No. Serum 25(OH)D level
(mean ± SD, ng/mL)
P-value
Overall 57,467 20.2 ± 9.3  
Sex    
 Male 31,520 20.0 ± 8.3  < 0.001*
 Female 25,947 20.4 ± 10.5  
Age group    
 20–29 2674 16.0 ± 7.3  < 0.001
 30–39 6796 17.2 ± 7.7  
 40–49 14,543 18.3 ± 8.0  
 50–59 19,569 20.8 ± 9.2  
 ≥ 60 13,885 23.6 ± 10.5  
Season    
 Spring 14,565 19.6 ± 9.9  < 0.001
 Summer 14,671 21.2 ± 8.5  
 Fall 13,555 21.1 ± 8.9  
 Winter 14,676 18.9 ± 9.7  
DEXA     < 0.001
 Normal 15,437 19.5 ± 8.9  
 Osteopenia 8048 21.2 ± 10.1  
 Osteoporosis 1762 23.0 ± 10.6  
 Missing 32,220   
MAST    0.265
 Positive 617 21.1 ± 9.2  
 Negative 660 21.7 ± 8.2  
 Missing 56,190   
  1. SD standard deviation, DEXA Dual energy X-ray absorptiometry, MAST multiple allergen simultaneous test
  2. *Student’s t test, ANOVA test, with P < 0.05 considered significant