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Table 3 Relationship between caries experience and general characteristics

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

Variable Caries experience First molar caries experience
ORa (95% CI) P value* OR (95% CI) P value*
Sex Male 0.819 (0.644–1.042) 0.104 0.841 (0.666–1.063) 0.148
Female 1.000 (reference)   1.000 (reference)  
House income High 1.205 (0.879–1.653) 0.247 1.172 (0.855–1.608) 0.323
Middle 1.000 (reference)   1.000 (reference)  
Low 1.314 (0.962–1.795) 0.086 1.250 (0.928–1.685) 0.142
Vitamin D (two classification) <  50 nmol 1.246 (0.975–1.592) 0.079 1.295 (1.020–1.644) 0.034
≥ 50 nmol 1.000 (reference)   1.000 (reference)  
Age   1.364 (1.184–1.572) <  0.001 1.241 (1.084–1.420) 0.002
Frequency of tooth brushing 1.057 (0.886–1.262) 0.537 1.020 (0.855–1.218) 0.824
  1. The data were analyzed using a complex weighted sample design
  2. *P values were determined from complex samples logistic regression
  3. aValues are expressed as the adjusted odds ratios