Table 1. Study sample, invited sample and national workforce characteristics.
| Variable | Study sample % (n) |
Invited sample % (n) |
Difference % (p-value)a |
Norwegian workforce %b |
|---|---|---|---|---|
| Gender | 1.6 (.081) | |||
| Male | 32.6 (1067) | 34.2 (4908) | 52.7 | |
| Female | 67.4 (2211) | 65.8 (9445) | 47.3 | |
| Age | 4.0 (< .001) | |||
| ≤ 39 | 31.5 (1032) | 35.5 (5102) | 45.0 | |
| ≥ 40 | 68.5 (2246) | 64.5 (9251) | 55.0 | |
| Educational level | ||||
| Primary/lower secondary | 2.5 (81) | - | 16.3 | |
| Upper secondary | 22.2 (728) | - | 42.3 | |
| University/college | 75.3 (2469) | - | 41.4 | |
| Living status | ||||
| Living alone | 13.7 (448) | - | - | |
| Living with others | 86.3 (2830) | - | - | |
| Employment sector | ||||
| Private | 10.0 (328) | - | - | |
| Public | 90.0 (2950) | - | - | |
| Industry | ||||
| Transport | 1.8 (60) | - | - | |
| Production | 5.6 (184) | - | - | |
| Publ. administration | 75.3 (2468) | - | - | |
| Health care | 16.5 (542) | - | - | |
| Hotel/restaurant | 0.7 (24) | - | - |
aDifference between study sample and invited sample.
bCharacteristics of the Norwegian national workforce in 2016, obtained from Statistics Norway (http://www.ssb.no)