Table 4.

Factors significantly related to hydronephrosis in the study cohort

Factor	Count	r	P value of Pearson correlation
History of hydronephrosis	30	0.5	<0.001*
Recurrent UTI	23	0.32	<0.001*
Diagnosis consistent with obstruction	127	0.2	<0.001*
Non-black race	176	0.03	0.66
Absence of exposure to nephrotoxic agents	114	0.15	0.012*
Absence of CHF	208	0.15	0.012*
Absence of prerenal AKI	184	−0.09	0.12

Pearson correlation coefficients were used to assess the correlation of factors in the risk score with hydronephrosis in our population.

*Statistically significant at p<0.05.

AKI, acute kidney injury; CHF, congestive heart failure; UTI, urinary tract infections.