Table 3. Relationship between gig work experience and occupational injury.
| Any minor injury | Activity-limiting injury | ||||||
|
| |||||||
| OR | 95% CI | OR | 95% CI | ||||
| Gig work experience in the last year | No | 1.00 | (reference) | 1.00 | (reference) | ||
| Yes | 3.68 | 3.02 | 4.49 | 9.11 | 7.03 | 11.8 | |
| Age (year) |
–19 | 2.17 | 1.54 | 3.07 | 1.48 | 0.70 | 3.09 |
| 20–29 | 1.85 | 1.58 | 2.16 | 2.17 | 1.64 | 2.89 | |
| 30–39 | 1.00 | (reference) | 1.00 | (reference) | |||
| 40–49 | 0.85 | 0.72 | 0.99 | 0.68 | 0.50 | 0.94 | |
| 50–59 | 0.69 | 0.58 | 0.82 | 0.66 | 0.47 | 0.93 | |
| 60–69 | 0.79 | 0.65 | 0.97 | 0.89 | 0.61 | 1.29 | |
| 70–79 | 0.72 | 0.54 | 0.97 | 0.51 | 0.27 | 0.94 | |
| Sex | Female | 1.00 | (reference) | 1.00 | (reference) | ||
| Male | 0.97 | 0.86 | 1.10 | 0.92 | 0.73 | 1.16 | |
| Household income in 2020 (1,000yen) |
6,000+ | 1.00 | (reference) | 1.00 | (reference) | ||
| 3,000–5,999 | 1.38 | 1.21 | 1.57 | 1.02 | 0.80 | 1.30 | |
| –2,999 | 1.52 | 1.29 | 1.79 | 1.14 | 0.84 | 1.54 | |
| Do not want to answer | 1.04 | 0.85 | 1.28 | 0.67 | 0.44 | 1.02 | |
| Do not know | 1.23 | 1.02 | 1.47 | 0.87 | 0.61 | 1.24 | |
| Employment status | Standard employment | 1.00 | (reference) | 1.00 | (reference) | ||
| Non-standard employment | 1.44 | 1.25 | 1.67 | 0.67 | 0.50 | 0.90 | |
| Self employed | 1.44 | 1.19 | 1.75 | 2.09 | 1.52 | 2.88 | |
| Freelance | 0.68 | 0.46 | 1.00 | 0.73 | 0.40 | 1.31 | |
| Duration of work (hours/week) |
–20 | 1.00 | (reference) | 1.00 | (reference) | ||
| 20–29 | 1.30 | 1.07 | 1.59 | 1.28 | 0.88 | 1.85 | |
| 30–39 | 1.47 | 1.21 | 1.79 | 1.06 | 0.73 | 1.54 | |
| 40–49 | 1.77 | 1.46 | 2.14 | 1.14 | 0.80 | 1.64 | |
| 50–59 | 1.91 | 1.48 | 2.46 | 0.85 | 0.51 | 1.42 | |
| 60+ | 1.94 | 1.50 | 2.52 | 1.10 | 0.67 | 1.80 | |
| Main occupationa) | Clerk | 1.00 | (reference) | 1.00 | (reference) | ||
| Professional and engineering | 1.58 | 1.31 | 1.91 | 0.97 | 0.68 | 1.37 | |
| Shop and market sale | 1.36 | 1.11 | 1.68 | 0.87 | 0.59 | 1.28 | |
| Service | 2.11 | 1.72 | 2.60 | 1.47 | 1.01 | 2.14 | |
| Manufacturing process | 2.25 | 1.83 | 2.75 | 1.04 | 0.68 | 1.58 | |
| Carrying, cleaning, packaging | 3.58 | 2.89 | 4.44 | 2.24 | 1.50 | 3.33 | |
| Else | 1.62 | 1.36 | 1.94 | 1.30 | 0.95 | 1.77 | |
| Self-rated health | Excellent | 1.00 | (reference) | 1.00 | (reference) | ||
| Good | 1.14 | 0.96 | 1.35 | 1.05 | 0.75 | 1.46 | |
| Fair | 1.35 | 1.18 | 1.56 | 1.48 | 1.13 | 1.94 | |
| Poor | 2.00 | 1.66 | 2.42 | 2.46 | 1.73 | 3.49 | |
| Bad | 1.80 | 1.15 | 2.82 | 3.49 | 1.84 | 6.63 | |
| Smoking status | Non smoker | 1.00 | (reference) | 1.00 | (reference) | ||
| Past smoker | 1.29 | 1.12 | 1.48 | 1.55 | 1.18 | 2.02 | |
| Current smoker | 1.41 | 1.24 | 1.61 | 1.52 | 1.19 | 1.95 | |
| Amount of drinking (alcohol g/day) |
Non drinker | 1.00 | (reference) | 1.00 | (reference) | ||
| –19.9 | 1.13 | 0.99 | 1.29 | 0.92 | 0.70 | 1.19 | |
| 20–39.9 | 0.90 | 0.77 | 1.04 | 0.83 | 0.62 | 1.12 | |
| 40.0– | 1.17 | 1.01 | 1.35 | 1.24 | 0.95 | 1.62 | |
a)Security or transportation were combined with “Else” occupation.
Construction was also combined with occupations involving carrying, cleaning, and packaging.