Table 3.

Univariate analysis of factors associated with humeral shaft fractures in adults.

Variables	Number of individuals without humeral shaft fractures		Number of humeral shaft fractures		P
	Male (n = 215397)	Female (n = 215593)	Male (n = 19)	Female (n = 12)	Male	Female
Age groups (years)
15–59	170990	170873	14	8	0.541	0.290
≥60	44407	44720	5	4
BMI
<24	148554	161163	12	7	0.572	0.203
24–27.9	58445	45004	6	4
≥28	8398	9426	1	1
Education
Illiteracy	34592	40604	5	5	0.082	0.028
Primary school	82734	80882	9	5
Junior school or above	98071	94107	5	2
Occupation
Unemployed and Retired	24507	38622	5	2	0.439	0.639
Office worker and Student	50389	46414	2	1
Others	9047	6904	1	2
Manual worker and Farmer	131454	123653	11	7
Cigarette smoking
No	117224	208487	2	12	0.002	0.981
Yes	98173	7106	17	0
Calcium or VD supplement
No	204439	201377	17	12	0.293	0.973
Yes	10958	14216	2	0
Alcohol consumption
No	100992	189119	5	6	0.082	0.001
Yes	114405	26474	14	6
Average sleep time per day(h)
≥7	73623	76456	10	6	0.098	0.300
<7	141774	139137	9	6
Previous history of fracture
No	209398	211745	16	10	0.003	0.002
Yes	5999	3848	3	2
Urbanisation
Urban area	85442	85974	8	6	0.828	0.477
Rural area	129955	129619	11	6
Children
No or only one		115878		2		0.144
2		68942		9
>2		30773		1
Menopause age(years)
<46		5392		1		0.002
46–50		57674		7
>50		19421		3
Premenopausal		133106		1