Table 2.

Comparison of serum potassium values at the initial visit, first month, and second month of treatment within the kanamycin-based and capreomycin-based groups.

		Initial visit Mean ± SD (mEq/L)	First month Mean ± SD (mEq/L)	Second month Mean ± SD (mEq/L)	p value
Kanamycin	N	44	44	44	<0.001 a
	Potassium	4.0 ± 0.4	3.6 ± 0.4	3.7 ± 0.5
	Difference	—	−0.3	−0.3
	p value	—	<0.001 b	0.003 b
Capreomycin	N	40	40	40	<0.001 a
	Potassium	4.1 ± 0.5	3.4 ± 0.7	3.2 ± 0.6
	Difference	—	−0.7	−0.9
	p value	—	<0.001 b	<0.001 b

SD, standard deviation; analyzed using ^aone-way ANOVA with post hoc ^bBonferroni test.