questionnaire used in this step has the same questions of the pre-test questionnaire, except for the sociodemographic
characteristics.
Regarding the data analysis, it was considered a quasi-experimental study to evaluate the knowledge of mothers on
the prevention of accidents in childhood pre and post the education intervention. The data were analyzed through the
mentioned variables of the questionnaire by using the chi-square test of Pearson at 5% significance.
It was also analyzed the mothers' knowledge question by question (before and after the educational intervention) by
applying the linear trend chi-square test to compare pre and post interventions. In addition, it was calculated the
frequencies of the characteristics through Fisher's exact test to verify if there was a significant increase in knowledge of
mothers before and after the educational intervention. The data were tabulated in Excel 2013, and the tests performed
by using SPSS, version 20.0.
The research followed the ethical and legal aspects for its development as required by the Brazilian Resolution
number 466/12 of the Brazilian National Health Council that is in charge of research involving human beings. It was
assured for the subjects confidentiality and freedom for rejection or exclusion at any stage of the research [15]. The
approval number of this research is 320/11.
RESULTS
The current study included 155 mothers, the average age was 24.8 years (standard deviation=0.9 months), 43.6% of
the interviewees had less than 9 years of education. The largest proportion of the subjects reported being
married/common-law marriage (63.6%). With regard to the employment status, the numbers showed an equal result
(29.1% of the subjects claimed to be self-employed, and 29.1% homemaker). The data about the subjects’ number of
children and family income reveal that 65.5% had two to three children, and 50.9% had an income below the Brazilian
minimum wage.
Table 1 shows the characterization of the occurrence of accidents in childhood. It was observed that the largest
proportion of the subjects admitted an occurrence of accident episode with their children (63.6%).