Document Classification

Section Type: RESULTS

Text: In the acetylcysteine group, the mean serum creatinine concentration decreased significantly (P < 0. 001), from 2. 5 + / -1. 3 to 2. 1 + / -1. 3 mg per deciliter (220 + / -118 to 186 + / -112 micromol per liter) 48 hours after the administration of the contrast medium, whereas in the control group, the mean serum creatinine concentration increased nonsignificantly (P = 0. 18), from 2. 4 + / -1. 3 to 2. 6 + / -1. 5 mg per deciliter (212 + / -114 to 226 + / -133 micromol per liter) (P < 0. 001 for the comparison between groups).