Motor vehicle occupant death (n=621) according to gender and type of crash, in association with individual and municipal characteristics, for 609 807 Norwegians born between 1967 and 1976 and followed-up from age 16 to 20 years*
| Characteristic | Females | Males | ||||||
| Non-collision† (57 deaths) | Collision† (71 deaths) | Non-collision† (259 deaths) | Collision† (234 deaths) | |||||
| RR‡ | 95% CI | RR‡ | 95% CI | RR‡ | 95% CI | RR‡ | 95% CI | |
| Individual level variables | ||||||||
| Year of birth | 0.90 | 0.81 to 1.00 | 0.94 | 0.80 to 1.11 | 0.93 | 0.88 to 0.97 | 0.92 | 0.87 to 0.96 |
| Parental education level | ||||||||
| Tertiary, high | 1 | Ref. | 1 | Ref. | 1 | Ref. | 1 | Ref. |
| Tertiary, low | 0.36 | 0.07 to 1.86 | 0.90 | 0.28 to 2.90 | 3.06 | 0.91 to 10.27 | 1.10 | 0.51 to 2.36 |
| Upper secondary, complete | 1.42 | 0.39 to 5.24 | 1.00 | 0.31 to 3.21 | 5.49 | 1.69 to 17.89 | 1.82 | 0.87 to 3.78 |
| Upper secondary, basic | 1.08 | 0.29 to 3.98 | 1.17 | 0.38 to 3.59 | 6.73 | 2.09 to 21.68 | 1.53 | 0.74 to 3.16 |
| Lower secondary or less | 1.37 | 0.34 to 5.44 | 0.93 | 0.26 to 3.29 | 10.24 | 3.13 to 33.49 | 1.83 | 0.85 to 3.93 |
| Father's income quartile | ||||||||
| Highest | 1 | Ref. | 1 | Ref. | 1 | Ref. | 1 | Ref. |
| Third | 0.74 | 0.29 to 1.90 | 1.54 | 0.75 to 3.13 | 0.70 | 0.47 to 1.05 | 1.03 | 0.68 to 1.57 |
| Second | 0.71 | 0.28 to 1.83 | 0.58 | 0.24 to 1.39 | 0.78 | 0.53 to 1.16 | 0.88 | 0.57 to 1.34 |
| Lowest | 1.38 | 0.59 to 3.25 | 1.08 | 0.49 to 2.41 | 0.54 | 0.36 to 0.82 | 0.99 | 0.64 to 1.54 |
| Missing | 1.34 | 0.44 to 4.04 | 1.21 | 0.40 to 3.67 | 0.85 | 0.50 to 1.43 | 1.43 | 0.81 to 2.52 |
| Mother's marital status | ||||||||
| Married | 1 | Ref. | 1 | Ref. | 1 | Ref. | 1 | Ref. |
| Unmarried | 2.06 | 1.14 to 3.71 | 0.69 | 0.34 to 1.42 | 1.67 | 1.23 to 2.26 | 1.04 | 0.73 to 1.49 |
| Missing | 1.41 | 0.19 to 10.36 | 0.29 | 0.04 to 4.27 | 2.18 | 1.02 to 4.66 | 1.87 | 0.82 to 4.25 |
| Municipal level variables | ||||||||
| Proportion high-income earners (quartiles) | ||||||||
| Highest | 1 | Ref. | 1 | Ref. | 1 | Ref. | 1 | Ref. |
| Third | 2.74 | 1.14 to 6.55 | 1.78 | 0.74 to 4.33 | 1.14 | 0.71 to 1.83 | 1.72 | 1.01 to 2.92 |
| Second | 2.19 | 0.88 to 5.45 | 1.76 | 0.70 to 4.43 | 1.66 | 1.06 to 2.59 | 2.18 | 1.30 to 3.65 |
| Lowest | 1.88 | 0.69 to 5.13 | 3.67 | 1.48 to 9.14 | 1.76 | 1.10 to 2.81 | 2.23 | 1.29 to 3.86 |
| Urbanisation | ||||||||
| Urban | 1 | Ref. | 1 | Ref. | 1 | Ref. | 1 | Ref. |
| Rural | 1.15 | 0.54 to 2.43 | 0.61 | 0.31 to 1.20 | 1.66 | 1.20 to 2.29 | 0.72 | 0.49 to 1.07 |
| Random effect, intercept variability (SE) | 0.000 | (0.000) | 0.134 | (0.323) | 0.086 | (0.104) | 0.167 | (0.123) |
↵* 1847 Participants with missing data on parental education or municipality were not included in the analysis.
↵† Non-collision: ICD-8 E816; ICD-9 E816; ICD-10 V28/V48: non-collision motor vehicle crash due to loss of control on the road. Collision: other motor vehicle crashes.
↵‡ RR in a model including gender, year of birth, parental education level, father's income level, mother's marital status, municipal proportion of high-income earners, and municipal urbanisation.