Table 3.

Comorbid conditions^a

Condition	Total (%)^b	AKI (%)	ACRF (%)	P
IHD	31.5	29.5	42	0.028
Hypertension	27.8	27.2	30.7	0.591
Malignancy	22.5	21.7	25	0.591
CVD	17.1	17.3	15.9	0.870
Diabetes	15.7	15	19.3	0.385
Cardiac failure	13.2	12.9	14.8	0.754
None	15.7	16.0	13.6	0.683
PVD	7.7	6.8	12.5	0.100
COPD	7.7	7.8	6.8	0.919
Liver disease	2.8	3.0	2.3	1.000
CT disease	2.3	2.5	1.1	0.703
Comorbid sum^c				0.173^d
0	15.7	16.0	13.6
1	42.2	43.2	36.4
2	24.2	24.3	23.9
≥3	18.0	16.5	26.1

↵^a COPD, chronic obstructive airway disease; CT, connective tissue; CVD, cerebrovascular disease; IHD, ischemic heart disease; PVD, peripheral vascular disease.
↵^b ARF + ACRF.
↵^c Number of comorbid conditions in a patient.
↵^d χ² for all groups = 4.982, df = 3, P = 0.173.