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Table 2 Caries experience according to 25(OH)D levels

From: A cross-sectional study on the association between vitamin D levels and caries in the permanent dentition of Korean children

Variables Classification Caries experience in the permanent dentition Permanent first molar caries experience
No Yes P * No Yes P *
Vitamin D (two classification) <  50 nmol 476 (45.3) 562 (54.7) 0.012 501 (47.6) 537 (52.4) 0.006
≥ 50 nmol 351 (53.0) 299 (47.0)   366 (55.8) 284 (44.2)  
  ORa 0.735    0.721   
Vitamin D (four classification) <  25 nmol 27 (40.3) 39 (59.7) 0.048 29 (44.6) 37 (55.4) 0.018
≤ 25 to < 50 nmol 449 (45.7) 523 (54.3)   472 (47.9) 500 (52.1)  
≤ 50 to < 75 nmol 318 (52.4) 270 (47.6)   330 (55.0) 258 (45.0)  
≥ 75 nmol 33 (59.6) 29 (40.4)   36 (64.4) 26 (35.6)  
  1. Units: N (%)
  2. The data were analyzed using a complex weighted sample design
  3. *P values were determined from complex samples Chi-square tests
  4. aValues are expressed as the adjusted odds ratios