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Table 2 Vitamin D status according to periodontal status (periodontitis cases and controls)

From: Low vitamin D status strongly associated with periodontitis in Puerto Rican adults

Vitamin D status categories Cases Controls Q Cochrane
N % N % P value
Deficient ≤12 ng/ml 0 0.0 0 0.0 <0.001
Inadequate (25OHD = 12-19 ng/ml) 12 63.2 6 31.6
Adequate (25OHD = 20-30 ng/ml) 7 36.8 9 47.4
Optimal (25OHD > 30 ng/ml) 0 0.0 4 21.1