Table 3.

Slopes (rate of change in medullary R₂* over time) of the temporal responses after water loading (with and without naproxen)

Subject	Waterload (1/s min)	Waterload with naproxen (1/s min)
1	0.39	0.038
2	0.18	0.084
3	0.23	0.079
4	0.20	0.021
5	0.11	0.180
Mean (with subject no. 5)	0.22	0.080
s.d. (with subject no. 5)	0.10	0.062
Mean (without subject no. 5)	0.25	0.056†
s.d. (without subject no. 5)	0.096	0.031

^†P<0.05 using a paired two-tailed Student’s t-test when compared to slope value without naproxen pretreatment.