TABLE 2.

Multivariate analysis for factors associated with hypomagnesemia.

Factor	Odds ratio (95% CI)	P
Age	0.96 (0.95–1.05)	0.152
SLE	1.47 (0.54–3.97)	0.445
RA	0.84 (0.32–2.16)	0.727
GC use	1.14 (0.49–2.71)	0.753
PPI use	1.45 (1.01–3.29)	0.009
TAC use	5.99 (2.93–12.24)	<0.001
MTX use	0.72 (0.27–1.95)	0.523
HCQ use	1.71 (0.53–5.52)	0.371

SLE, systemic lupus erythematosus; RA, rheumatoid arthritis; GC, glucocorticoid; PPIs, proton pump inhibitors; TAC, tacrolimus; MTX, methotrexate; HCQ, hydroxychloroquine.