Table 3.

Interactions between tenofovir exposure and vitamin D deficiency with PTH levels.

	Vitamin D < 12 ng/ml		Vitamin D > 12 ng/ml		P	P
	Tenofovir	No tenofovir	Tenofovir	No tenofovir	A versus B	A versus C
	(n: 52) A	(n: 33) B	(n: 78) C	(n: 65) D
PTH > 65 pg/mL	31 (59.6%)	11 (33.3%)	33 (42.3%)	11 (16.9%)	P: 0.002	P: 0.07
Median PTH pg/mL (IQR)	76 (52.5–105.5)	47 (31.5–75)	52 (35–90)	40 (26–57)	P: 0.001	P: 0.007