The high-dose group showed an increase in 24-hour urine volumes from post-treatment day 3 ( 1112 262 ml ) to day 7 ( 1938 312 ml ) , and the volumes on both days were significantly better than those of the low-dose group ( day 3:986 162 ml and day 7:1760 300 ml , t = 1.500 , 1.830 , P = 0.038 , 0.041 ) .