Sex-stratified analysis of multivariable models
| Parameter | Model (males) (N=1814) | Model (females) (N=1315) | ||
| OR | 95% Wald confidence limits | OR | 95% Wald confidence limits | |
| Mechanism of injury | ||||
| wr-mTBI (non-assault) | 1.00 | – | 1.00 | – |
| Assault-induced wr-mTBI | 2.17 | 1.40 to 3.36 | 1.74 | 0.99 to 3.05 |
| Injury severity (hospitalisation) | ||||
| Not hospitalised | 1.00 | - | 1.00 | – |
| Hospitalised | 7.24 | 5.52 to 9.51 | 6.29 | 4.13 to 9.59 |
| Age at the time of injury (by decade) | ||||
| 15–24 years | 1.00 | – | 1.00 | – |
| 25–34 years | 0.59 | 0.37 to 0.94 | 0.46 | 0.24 to 0.88 |
| 35–44 years | 0.63 | 0.39 to 1.01 | 0.28 | 0.15 to 0.54 |
| 45–54 years | 0.39 | 0.25 to 0.62 | 0.29 | 0.16 to 0.54 |
| 55+ years | 0.38 | 0.23 to 0.61 | 0.29 | 0.15 to 0.56 |
| Employment type | ||||
| Full-time employee | 1.00 | – | 1.00 | -– |
| Part-time employee | 1.06 | 0.59 to 1.90 | 1.14 | 0.77 to 1.70 |
| Other employees | 0.85 | 0.61 to 1.18 | 1.30 | 0.80 to 2.10 |
| Employer size | ||||
| Large | 1.00 | – | 1.00 | – |
| Medium | 0.78 | 0.56 to 1.10 | 0.62 | 0.42 to 0.90 |
| Small | 0.40 | 0.28 to 0.57 | 0.49 | 0.29 to 0.80 |
| Occupation type | ||||
| Community and personal service occupations | 1.00 | – | 1.00 | – |
| Service-oriented occupations | 0.95 | 0.58 to 1.55 | 0.43 | 0.25 to 0.74 |
| Professionals | 1.06 | 0.56 to 2.00 | 0.63 | 0.37 to 1.08 |
| Goods-oriented occupations | 0.90 | 0.55 to 1.47 | 0.45 | 0.26 to 0.80 |
| Socioeconomic status | ||||
| 9–10 (advantaged) | 1.00 | – | 1.00 | – |
| 7–8 (advantaged) | 1.19 | 0.81 to 1.76 | 0.94 | 0.60 to 1.49 |
| 5–6 (middle) | 1.17 | 0.80 to 1.71 | 0.81 | 0.51 to 1.30 |
| 3–4 (disadvantaged) | 1.73 | 1.10 to 2.70 | 0.79 | 0.47 to 1.33 |
| 1–2 (most disadvantaged) | 1.37 | 0.90 to 2.10 | 1.03 | 0.57 to 1.85 |
For males: categories injury severity, age (45–54 and 55+) and employer size (small-sized) were significant at p<0.000; category mechanism of injury was significant at p=0.001; categories socioeconomic status and age (25–34 and 35–44) and were significant at p=0.01, p=0.02 and p=0.05 respectively. For females: categories injury severity and age (35–44, 45–54 and 55+) were significant at p<0.000; categories employer size (medium), socio-economic status (most disadvantaged), employment type and occupation type were significant at p=0.002, p=0.003, p=0.005 and p=0.006 respectively; categories age (25–34) and employer size (small) were significant at p=0.01; category mechanism of injury was significant at p=0.05.
wr-mTBI, work-related mild traumatic brain injury.