Use of motorcycle in Brazil: users profile, prevalence of use and traffic accidents occurrence — a population-based study

Seerig, Lenise Menezes; Bacchieri, Giancarlo; Nascimento, Gustavo Giacomelli; Barros, Aluisio J D; Demarco, Flávio Fernando

doi:10.1590/1413-812320152112.28212015

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Article • Ciênc. saúde colet. 21 (12) • Dec 2016 • https://doi.org/10.1590/1413-812320152112.28212015 copy

Use of motorcycle in Brazil: users profile, prevalence of use and traffic accidents occurrence — a population-based study

Uso de motocicletas no Brasil: perfil dos usuários, prevalência de uso e ocorrência de acidentes de trânsito - estudo de base populacional

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

This study aimed to describe the profile of motorcycle users and determine the prevalence of use. Also, to evaluate the reason for using a motorcycle, users' perceived risk of traffic accident, pattern of helmet wearing and number of accidents related to motorcycle use in the last 12 months. This cross-sectional study was conducted in the city of Pelotas, Southern Brazil. Sampling process was carried out in two stages, with the primary unit being the census track and the secondary the house. The study included 3,004 individuals aged 10 to 59 years, which answered a structured questionnaire. The outcome of the study was the use of motorcycle. The prevalence of motorcycle use was 25%. The majority of the riders were composed by males (79%). Individuals aged from 18 to 35-years-old comprised 42% of the total number of users, mainly as riders (24%). Forty percent of the users were not using properly the helmet strap. The major part of the users (76%) had a perception of high risk for accidents. The prevalence of accidents was 8%; it was higher among males and among those individuals aged from 18 to 35 years. The use of motorcycle was widespread in the population. Users were aware of the risk of accident, even though they reported to not wear correctly the helmet.

Key words
Motorcycles; Accidents; Traffic; Epidemiology; Public policies

Variables		General Total Sample		Motorcycle user condition
		General Total Sample		Rider		Passenger
		N	%	N	%	N	%
Sex
	Male	1320	43.9	289	79.8	106	27.0
	Female	1684	56.1	72	20.2	287	73.0
Skin color
	White	2360	78.6	287	79.5	293	74.6
	Dark black skinned	390	13.0	42	11.6	61	15.5
	Light black skinned	219	7.3	27	7.5	33	8.4
	Others	35	1.2	5	1.4	6	1.5
Age
	10-17 years	576	19.2	18	5.0	133	33.8
	18-35 years	1111	37.0	181	50.1	136	34.6
	36-49 years	803	26.7	120	33.2	78	19.9
	50-59 years	514	17.1	42	11.6	46	11.7
Years of Schooling - Adults (N = 2260)
	0-4 years	237	10.5	23	7.1	24	10.7
	5-8 years	635	28.1	112	34.5	71	31.6
	9-11 years	706	31.2	130	40.0	87	38.7
	12 years or more	682	30.2	60	18.5	43	19.1
Years of Schooling - Adolescents (N = 576)
	0-4 years	119	20.6	4	22.2	22	16.5
	5-8 years	341	59.2	14	77.8	93	69.9
	9-11 years	109	18.9	-	-	17	12.8
	12 years or more	7	1.2	-	-	1	0.8
IEN 5quintiles
	1(20% poorer)	552	18.5	69	19.2	94	24.0
	2	592	19.9	62	17.2	81	20.7
	3	626	21.0	82	22.8	86	22.0
	4	600	20.1	88	24.4	84	21.5
	5 (20% richer)	609	20.4	59	16.4	46	11.7
Total		3004		361		393

Variables		Motorcycle use						Accidents last 12 months
		Total		Rider		Passenger		Accidents last 12 months
		N	%	N	%	N	%	N	%
Sex		p < 0.001		p < 0,001		p < 0,001		p < 0,001
	Male	395	29,9	289	21,9	106	8,0	42	10,6
	Female	359	21,3	72	4,3	287	17,1	18	5,0
Skin color		p = 0,717		p = 0,843		p = 0,5113		p = 0,690
	White	580	24,6	287	12,2	293	12,4	49	8,5
	Dark black skinned	103	26,4	42	10,8	61	15,6	7	6,8
	Light black skinned	60	27,4	27	12,3	33	15,1	4	6,7
	Others	11	31,4	5	14,3	6	17,1	-	-
Age		p < 0,001		p < 0,001		p < 0,001^ p value of linear trend.		p < 0,001
	10-17 years	151	26,2	18	3,1	133	23,1	3	2,0
	18-35 years	317	28,5	181	16,3	136	12,2	39	12,3
	36-49 years	198	24,7	120	15,0	78	9,7	14	7,1
	50-59 years	88	17,1	42	8,2	46	9,0	4	4,6
Schooling^* ***** only for adults (20 years or more).		p < 0,001		p < 0,001		p < 0,001		p = 0,333
	0-4 years	47	19,9	23	9,8	24	10,2	4	8,5
	5-8 years	183	28,8	112	17,6	71	11,2	10	5,5
	9-11 years	217	30,7	130	18,4	87	12,3	23	10,6
	12 years or more	103	15,1	60	8,8	43	6,3	8	7,8
IEN (quintiles)		p = 0,02		p = 0,081		p = 0,002		p = 0,647
	1 (20% poorer)	163	29,5	69	12,5	94	17,0	15	9,2
	2	143	24,2	62	10,5	81	13,7	8	5,6
	3	168	26,9	82	13,1	86	13,8	13	7,7
	4	172	28,7	88	14,7	84	14,0	14	8,1
	5 (20% richer)	105	17,2	59	9,7	46	7,6	10	9,5
Total		754		395		359		60

Variables		N	%
Perception of risk
	Very high	333	44.2
	High	239	31.7
	Medium	136	18.1
	Low	34	4.5
	Very low	11	1.5
Daily hours use
	Up to one hour	470	62.4
	Two to three hours	231	30.1
	More than 4 hours	49	6.5
Frequency of use
	Weekdays	222	29.5
	Weekends	156	20.8
	Both	375	49.9
Helmet strap
	Fastened and tightened when	426	56.6
	starting to ride the motorcycle
	Always closed but not fastened	276	36.6
	Never closed	51	6.7

Variables		N	%
Reason for use
	Commuting to work or school	434	57.4
	Leisure	559	75.9
	Children of relatives transportation	110	14.6
	Motored office boy or taxi	16	2.2
	Other kind of work	26	3.4

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E-mail: cienciasaudecoletiva@fiocruz.br

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[1] Collaborations

LM Seerig, G Bacchieri, GG Nascimento, AJD Barros and FF Demarco participated equally in all stages of preparation of the article.