Table 1.

Wrist injury rate under different characteristics.

Variable	Category	Number	Constituent	Prevalence of hand	P-value
			Ratio (%)	injury (%)
Gender	Female	37,240	64.8	13	0.15
	Male	20,261	35.2	13.4
strong hand	Right hand	53,095	92.3	13	<0.01
	Left hand	4,406	7.7	14.9
Education	Junior high and below	15,369	26.7	14.1	<0.01
	High school and technical secondary school	21,900	38.1	14.3
	Junior college	12,026	20.9	11.7
	Bachelor and master degree or above	8,206	14.3	10.1
Working age	≤5	35,432	61.6	13.4	0.03
	>5	22,096	38.4	12.8
Smoking	No	36,530	63.5	13.1	0.01
	Occasionally	10,111	17.6	12.4
	Frequently	9,903	17.2	14.1
	Rimonabant	957	1.7	13
Marriage	Spinsterhood	20,997	36.5	13.5	0.05
	Married	35,343	61.5	12.9
	Married but living alone	1,161	2	14.8
Monthly income	<3,000 rmb	11,220	19.5	16.8	<0.01
	3,001–5,000 rmb	28,371	49.3	13.6
	>5,000 rmb	17,910	31.1	10
Sporting	No	17,945	31.2	14.4	<0.01
	Occasionally	30,175	52.5	13
	Frequently	9,381	16.3	11.1