TABLE 1—

Baseline Demographic and Agricultural Characteristics: Control and Intervention Farms, Central New York State, 2001

	Control	Intervention	P
No. of farms	429	416	. . .
Median no. of acres	276	300	.2009
Acreage range	1–3000	1–5000	.3706
No. of farms with resident children	398	394	. . .
No. of child work hours	130 404	144 240	. . .
Children per age group, y, no. (%)
0–6	250 (21)	200 (16)	. . .
7–16	744 (63)	816 (65)	.0031a
17–19	196 (16)	240 (19)	. . .
Mean age of children, y (SD)	11.9 (4.0)	12.5 (3.3)	.0360
Median child work hours per farm	192	282	.0039
Farm features, %
Dairy cows	67	68	.7247
Bulls	41	50	.0069
Tractors	99	97	.1182
Power takeoff	91	92	.5186
All-terrain vehicles	50	48	.5510
Youth handling tractor	72	77	.0695
Youth involved in hitching/unhitching tractor implements	70	73	.2830
Youth involved in haying operations	77	82	.1081
Youth caring for large animals	85	87	.4322
Emergency room visit for farm injury in past year	22	24	.7498

^aProbability derived from a 3 × 2 χ² test, reflecting a significant difference in the distribution of age groups at baseline.