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Table 2 The role of different variables in students’ use of the restraint system

From: A study of students’ use of restraint systems in school transportation services in primary and secondary schools in northern Iran: an observational study

Variable OR Standard. Error 95% CI P-value
Lower Limit Upper Limit
Constant coefficient 0.27 0.4 0.015 4.87 0.377
Driver seat belt use(Yes)
Base: No
4.5 3.73 0.88 22.91 0.069
Driver age (>  40)
Other: base age (<  40)
0.58 0.39 0.15 2.19 0.42
Driver sex (Female)
Base: Male
1.61 0.76 0.63 4.06 0.31
Type of car Sedan Base v
SUV 3.88 2.42 1.14 13.2 0.03
Vehicle age 2.047 1.51 0.48 8.69 0.33
Student age 0.98 0.56 0.31 3.03 0.97
Student sex (Female)
Base (Male)
1.57 0.89 0.51 4.79 0.42
School location High income Base
Medium income 0.19 0.122 0.055 0.66 0.009
Low income 0.2 0.128 0.058 0.7 0.012
Student position (Back)
Base(Front)
0.4 0.028 0.015 0.15 0.001>