TABLE 1

Summary of Breast Activity in the 4 Groups and Reference Group

			Breast activity (counts/cm²/MBq)
						Percentile
Group	State	n	Mean	SD	Median	10th	90th	P
1	Fasting	25	8.33	2.54	7.76	5.61	12.80	0.014
	Fed		6.59	2.25	6.22	4.18	10.29
2	Fasting/rest	25	10.14	2.79	10.73	6.15	14.07	<0.001
	Fasting/exercise		6.63	1.58	6.40	4.48	8.99
3	Fasting	52	8.54	2.36	8.30	5.62	12.15	0.38
	Fasting/caffeine		8.13	2.31	8.16	5.19	10.89
4	Fasting/cold	52	9.13	2.34	8.63	6.36	12.17	<0.001
	Fasting/warm		10.86	2.71	10.46	7.49	15.56
All fasting studies		154	8.96	2.51	8.57	5.95	12.36	<0.001
Reference group		60	7.08	1.92	6.81	4.92	9.88