Table 2.

A comparison of sociodemographic characteristics among sample population (injured and noninjured) and general population in Hong Kong

Demographic characteristics of the study population (as percentage of respondents)
	Noninjured % (N = 599)	Injured % (N = 402)	p value noninjured vs. injureda	All% (N = 1,001)	Hong Kong 2006 population census
Gender	N = 599	N = 402		N = 1,001
Male	55.8	35.8	<0.001**	47.8	47.7
Female	44.2	64.2		52.2	52.3
Age	N = 599	N = 402		N = 1,001
0–14	7.2	10	0.003**	8.3	13.7
15–24	16.4	20.4		18	13.2
25–34	13.7	16.4		14.8	15.3
35–44	20.7	19.9		20.4	18.2
45–54	16.2	15.9		16.1	17.4
55–64	10.2	10.2		10.2	9.7
65+	15.7	7.2		12.3	12.4
Education	N = 594	N = 400		N = 994
None	6.2	3.2	0.257	5	7.1
Primary	18	16.5		17.4	18.3
Form 3 level	18	18.8		18.3	19
Form 5 level	31.5	29		30.5	32.6
Form 6 to form 7	5.1	6		5.4	5.9
Diploma and higher diploma	4.3	5.3		4.7	7.6
University or above	16.8	21.4		18.6	15.4
Occupation	N = 268	N = 174		N = 442
Managers and administrators	5.2	5.1	0.053	5.2	10.8
Professionals	14.2	12.6		13.6	6.1
Associate professionals	11.9	14.4		12.9	16.1
Clerks	19.8	29.9		23.8	16.9
Service workers and shop sales workers	15.3	19		16.7	16.4
Craft and related workers	13.8	5.7		10.6	8.5
Plant and machine operators and assemblers	9.3	6.3		8.1	6.2
Elementary occupations	5.2	4		4.8	18.8
Unemployed	5.2	2.9		4.3	NA
Family income	N = 421	N = 280		N = 701
<5,000	13.5	6.7	0.025*	10.8	12
5,000–9,999	8.8	10		9.3	15.9
10,000–19,999	29	27.1		28.2	27.8
20,000–29,999	20	17.1		18.8	17.4
30,000–39,999	12.6	15		13.6	9.9
≥40,000	16.2	23.9		19.3	17
Average hours of staying at home everyday	N = 588	N = 396		N = 984
1–6 h	3.5	2.5	0.087	3.1	NA
7–12 h	45.9	53		48.8
13–18 h	31.4	30.1		30.9
19–24 h	19.2	14.4		17.3
Insurance typeb (not mutually exclusive)	N = 655	N = 436		N = 1,091
None	34.96	29.82	0.007*	32.91	NA
Personal/private	45.95	54.13		49.22
Employment related	18.63	14.68		17.05
Household	0.46	1.38		0.82
Housing type	N = 593	N = 396		N = 989
Public estate	35.6	28.8	0.057	32.9	31
Subsidized sale flat	16	14.6		15.5	17.8
Private flat and housing	47.2	55.8		50.7	49.3
Rental and Quarters	1.2	0.8		1	1.9
Size of living area (ft2)	N = 594	N = 401		N = 995
<400	15.7	12.2	0.236	14.3	NA
400–599	32.8	30.2		31.8
600–799	20.7	21.4		21
800–999	9.1	12		10.3
≥1,000	9.4	8.5		9
Unknown	12.3	15.7		13.7
Number of family members at the household	N = 596	N = 399		N = 995
Living alone	6	4	0.037*	5.2	NA
2 to 3 members	43.5	36.8		40.8
4 to 5 members	45.1	54.1		48.7
≥6	5.4	5		5.2
Living densityc	N = 520	N = 336		N = 856
0–99 ft2 per person	8.3	10.4	0.512	9.1	NA
100–499 ft2 per person	88.1	85.4		87
≥500 ft2 per person	3.7	4.2		3.9
Taken any precaution to prevent the household injuryd	N = 584	N = 399	<0.001**	N = 983
No, prevention	79.6	69.4		69.4	NA
Yes, prevention	20.4	30.6		30.6

Hong Kong 2006 Population Census data; # may not add up to 100% due to missing data

^aUnivariate analysis p value

^bMore than one type of insurance allowed per respondent

^cLiving density = living area (square feet)/# household member

^dAmong the respondents, 241 numbers of respondents had adopted some preventive strategy to prevent injury. Seventeen persons responded do not know and one refused to respond