Table 1.

Characteristics of infants video-recorded using a 2D camera.

Subjects		Age of Recording
Risk	Sex	10 days	6 weeks	12 weeks	18 weeks	24 weeks
		n	n	n	n	n
Low risk	M	14	23	22	20	18
	F	8	15	16	9	11
High risk	M	13	14	16	16	13
	F	13	14	16	16	13