Table 2.

Mean, SD and range of the number of bruises per child and the mean number of sites affected per developmental group for physically abused and physical abuse-excluded groups

	Total population		Physical abuse		Physical abuse-excluded
	Mean number of bruises (SD) (range)	Mean number of regions with bruises (SD) (range)	Mean number of bruises (SD) (range)	Mean number of regions with bruises (SD) (range)	Mean number of bruises (SD) (range)	Mean number of regions with bruises (SD) (range)
Baby	2.5 (3.2) (0, 22)	1.6 (1.4) (0, 6)	2.8 (3.5) (0, 22)	1.6 (1.5) (0, 6)	1.3 (1.8) (0, 7)	0.8 (0.8) (0, 3)
Early mobile	2.6 (2.9) (0, 14)	1.3 (1.3) (0, 8)	3.8 (3.3) (0, 14)	1.8 (1.5) (0, 8)	1.2 (1.4) (0, 5)	0.8 (1.) (0, 4)
Walking	4.9 (6.0) (0, 39)	2.4 (2.1) (0, 12)	6.2 (6.7) (0, 39)	2.8 (2.3) (0, 12)	2.1 (2.2) (0, 14)	1.4 (1.2) (0, 6)
Total	3.9 (5.1) (0, 39)	2 (1.9) (0, 12)	4.9 (5.8) (0, 39)	2.3 (2.1) (0, 12)	1.7 (2) (0, 14)	1.1 (1.1) (0, 6)