Table 2.

Correlation of hypokalemia with other factors

Total = 11	Mild/Grade 1 hypokalemia (N = 8)	Moderate/Grade 3 hypokalemia (N = 2)	Severe/Grade 4 hypokalemia (N = 1)
Serum creatinine (mg/dl) mean (range)	0.97 (0.4–1.1)	0.85 (0.6–1.1)	0.6
Urine potassium (mEq/L) mean (range)	21 (18–28)	36 (31–36)	51*
Level of Mg at low potassium (mg/dl)	1.65	1.5	2.0
Capecitabine dose (1000 mg/m2)	2	1	0
Capecitabine dose (2000 mg/m2)	6	1	1

^*Note: Available in only one patient.