Table 3

Logistic regression analysis: odds of being a case

OR3-150 95% CIp Value3-151
Child restrained (yes)0.070.02 to 0.21<0.001
Sex of parent (male)1.23 0.58 to 2.57 0.590
Driver<0.01
 Interviewee1
 Interviewee’s spouse2.751.17 to 6.48
 Relative, friend, others3.74 1.17 to 11.96
Journey time<0.01
 6 am–12 noon1
 12 noon–6 pm5.02 2.10 to 12.03
 6 pm–6 am30.15 5.68 to 160.1
Journey length (miles)<0.01
 <1 1
 1–54.81 0.96 to 24.16
 5–10 6.73 1.38 to 2.68
 ⩾108.75 1.78 to 43.08
Marital status (married)0.65 0.22 to 1.93 0.44
Employment 0.44
 Full time1
 Part time0.470.18 to 1.23
 Retired, student, unemployed0.330.14 to 0.79
Housing (own)0.890.41 to 1.95 0.77
Points on licence (yes)5.26 2.04 to 13.51<0.001
No of points (per point)1.72 1.21 to 2.45<0.001
No of accidents in 5 years (per accident)5.812.93 to 11.52<0.001
Age at completion of full time education (years) (per additional year)0.97 0.88 to 1.08 0.62
  • OR = odds ratio; CI = confidence interval.

  • 3-150 Comparing case with control.

  • 3-151 p Value for overall test of association.