Table 2.

Descriptive statistics.

		Sit Prof (min)	Supp Sit (min)	Unsupp Sit (min)	Unsupp & Supp Sit Bouts	Grnd Sit (min)	Adt Furn Sit (min)	Chi Furn Sit (min)	Arms Sit (min)	Accumul Sit (min)
ARG	M	0.53	19.72	0.17	11.58	0.88	2.47	14.45	2.09	19.89
	SD	0.78	17.02	0.48	9.81	1.90	4.70	16.01	2.67	17.16
CAM	M	11.26	12.63	20.82	19.33	8.53	13.14	3.58	8.20	33.45
	SD	7.85	11.93	14.25	13.39	15.55	14.66	9.74	4.47	12.80
ITA	M	0.00	7.68	0.00	7.83	0.00	1.92	0.00	5.76	7.68
	SD	0.00	4.71	0.00	4.64	0.00	2.90	0.00	3.70	4.71
KEN	M	8.10	12.50	12.69	27.42	12.16	4.77	0.94	7.32	25.19
	SD	10.05	6.92	18.31	14.49	16.11	7.65	1.41	3.98	19.21
KOR	M	2.31	11.92	1.81	12.92	3.44	0.14	3.54	6.61	13.73
	SD	1.02	10.58	5.28	14.16	7.46	0.26	8.86	5.20	11.41
USA	M	2.89	15.23	1.82	11.33	2.53	0.28	9.77	4.48	17.06
	SD	2.74	7.88	5.97	8.40	5.96	0.46	7.60	2.61	10.16

Note. Sitting proficiency averages (in minutes) are shown for independent sitters. Supported plus unsupported sitting (in minutes) equal to accumulated sitting (in minutes) across the four places (ground, adult and child furniture, and mother’s arms). Frequency of supported and unsupported sitting bouts were distributed over the hour with sitters accumulating more sitting bouts overall than non-sitters. Maternal age and education did not predict duration of sitting in the four places. Places where mothers situated infants related to infant sitting proficiency after controlling for maternal age and education.