Road traffic injury among young people in Vietnam: evidence from two rounds of national adolescent health surveys, 2004–2009

Figures & data

Table 1. Percent of ever used motorcycle by gender and location^a

	SAVY1				SAVY2
Age groups	14–17	18–21	22–25	14–25	14–17	18–21	22–25	14–25
Urban male	53.9	89.2	95.8	77.4	66.9	95.8	99.0	83.7
Urban female	43.5	72.8	86.8	64.2	50.0	94.4	94.2	74.2
Rural male	40.6	74.3	80.2	59.5	68.9	93.4	94.7	82.0
Rural female	25.6	50.6	45.8	38.4	50.3	79.1	80.5	65.0
All groups	36.6	67.1	70.5	54.2	59.3	88.7	90.4	75.0

^aAll percents in SAVY2 were significantly higher than those in similar age group, sex, and location found in SAVY1 (p<0.05).

Fig. 1.  Percent of always wearing helmet by gender and location.

Table 2. Percent of always wearing helmet while using motorcycle by age group and region^a

	SAVY1				SAVY2
Age groups	14–17	18–21	22–25	14–25	14–17	18–21	22–25	14–25
Red River Delta (highly urbanized)	19.9	29.8	41.6	28.0	37.6	55.6	70.2	53.2
North East (mountainous region)	34.9	40.4	42.3	38.5	49.5	67.8	78	64.3
North West (mountainous region)	20.3	26.1	26.1	23.2	38.4	57.5	56.9	50.4
North Central	27.4	34.0	41.1	31.8	63.5	76.3	78.2	71.2
Central Coast	16.4	23.5	34.3	22.9	67.1	80.3	87.4	76.6
Central Highland (mountainous region)	11.5	28.1	31.9	20.9	67.7	74.5	77.5	71.8
Southeast (highly urbanized)	11.2	17.6	26.9	17.2	78.5	87.1	93.5	86
Mekong River Delta	15.9	25.6	32.9	23.3	92.5	94.5	96.7	94.4
All groups	19.9	28.2	35.9	26.2	63.9	76.8	82.7	73.6

^aAll percents in SAVY2 were significantly higher than those in similar age group, sex, and location found in SAVY1 (p<0.05).

Table 3. Multiple logistic regression models to predict the likelihood of having road traffic injury, SAVY2 (2009)

	Model 1: Life time experience of RTI (N=10,034)^a				Model 2: RTI in the last 12 months (N=10,021)^b
Independent variables	Crude OR	95% CI of crude OR	Adjusted OR	95% CI of adjusted OR	Crude OR	95% CI of crude OR	Adjusted OR	95% CI of adjusted OR
Gender
Male	1.335	1.175–1.518	1.297	1.101–1.529	1.489	1.218–1.821	1.442	1.112–1.871
Female*	1		1		1		1
Age groups
22–25	2.869	2.444–3.368	1.905	1.594–2.277	2.354	1.827–3.034	1.508	1.165–1.953
18–21	2.215	1.892–2.594	1.609	1.359–1.905	2.305	1.813–2.933	1.377	1.038–1.827
14–17*	1		1		1		1
Area
Urban	1.536	1.339–1.763	1.241	1.063–1.448	1.203	0.965–1.498	1.032	0.809–1.317
Rural*	1		1		1		1
Had ever been drunk
Yes	2.486	2.186–2.427	1.723	1.456–2.040	3.056	2.500–3.737	2.137	1.643–2.779
No*	1		1		1		1
Had ever ridden motorbike after drinking
Yes	3.022	2.641–3.457	1.932	1.614–2.312	3.464	2.834–4.235	2.271	1.729–2.982
No*	1		1		1		1
Region
Red River Delta	0.901	0.731–1.111	0.966	0.771–1.209	0.829	0.604–1.139	0.881	0.627–1.239
North East	0.909	0.715–1.154	0.849	0.662–1.088	0.829	0.575–1.195	0.723	0.496–1.056
North West	0.690	0.452–1.053	0.692	0.448–1.069	0.876	0.492–1.559	0.784	0.432–1.424
North Central	0.733	0.569–0.943	0.862	0.664–1.118	0.537	0.353–0.817	0.613	0.399–1.118
Central Coast	1.324	1.026–1.708	1.266	0.972–1.650	1.210	0.825–1.774	1.103	0.742–1.638
Central Highland	1.067	0.803–1.419	1.060	0.790–1.422	1.191	0.793–1.787	1.099	0.724–1.670
South East	1.735	1.423–2.116	1.514	1.229–1.866	1.300	0.957–1.766	1.158	1.842–1.594
Mekong River Delta*	1		1		1		1

*Reference category.

^aGoodness-of-fit Hosmer & Lemeshow test χ²=4.533; df = 8; p=0.806.

^bGoodness-of-fit Hosmer & Lemeshow test χ²=8.204; df = 8; p=0.414.

Fig. 2.  Percent ever had traffic accidents by gender, age group, and location.

Fig. 3.  Percent ever had traffic injury in the last 12 months by gender, age group, and location, SAVY2 (2009).