Potential confounder | Categories | Internal drop-outs aM/W (%) |
---|---|---|
Smoking habits | Daily smoker, Not daily smoker | 0/1 |
Alcohol consumption (Grams of 100% alcohol/day) | No alcohol consumption, | 6/5 |
Low (males >0 to 40Â g/day, females >0 to 20Â g/day), | ||
Moderate (males >40 to 60Â g/day, females >20 to 40Â g/day), | ||
High (males >60Â g/day, females >40Â g/day) | ||
Neck pain the latest 6Â months | No pain, Two days in total, On average two days a month, | 1/1 |
On average two days a week, Every day | ||
Chronic illness or handicap | Suffering from long lasting disease, handicap or disability from accidental event? (Yes/No) | 2/2 |
Psychological wellbeing (GHQ-12) b | Reduced psychological wellbeing, | 2/1 |
Not reduced psychological wellbeing | ||
Emotional social support c | I have emotional social support, | 1/1 |
I do not have emotional social support | ||
Instrumental social support d | I have instrumental social support, | 1/1 |
I do not have instrumental social support | ||
Socioeconomic class (SEI class) e | Unskilled and semiskilled workers, | 4/5 |
Skilled workers, | ||
Assistant non-manual employees, | ||
Intermediate non-manual employees, | ||
Employed/self-employed professionals/ higher civil servants and executives, | ||
Self-employed (other than professionals) | ||
Current occupation | Employed, Self-employed, Unemployed, | 3/4 |
On disability or retirement pension, | ||
On leave, Student, âTaking care of the householdâ | ||
Marital status | Married/registered partnership, Unmarried, | 0/0 |
Divorced, Widow or widower | ||
Birthplace | Born in Sweden, Born abroad | 0/1 |
Time spent doing housework a normal weekday | Almost no time at all, About 30Â minutes, | 2/1 |
1-2Â hours, 3-5Â hours, > 5Â hours | ||
Main physical work load the latest 12Â months f | Sedentary, Light (mobile but no heavy lift), | 48/51 h |
Moderate (mobile and some heavy lift), Heavy | ||
Sick leave during the latest 12Â months | No sick leave, 1-7Â days, > 8Â days | 38/48 h |
Freedom to decide how to perform work g | Never, Mostly not, Mostly, Always | 42/51 h |
Freedom to decide what to perform at work g | Never, Mostly not, Mostly, Always | 43/51 h |
Good collegiality at work g | No, Not so good, Quite good, Good | 43/51 h |