Vitamin D and the promoter methylation of its metabolic pathway genes in association with the risk and prognosis of tuberculosis

Table 10 Crossover analysis of CYP27A1 methylation levels and 1,25-dihydroxyvitamin D levels in the sputum conversion of patients with TB

1,25(OH)₂D^a	Cumulative methylation level^b	Sputum conversion		OR	95% CI
1,25(OH)₂D^a	Cumulative methylation level^b	Yes	No	OR	95% CI
Low	High	9	3	0.27	0.02–3.09
High	High	10	4	0.23	0.02–2.39
Low	Low	11	4	0.25	0.02–2.61
High	Low	11	1	1

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