Table 3 Sickness absence in one year: registered sickness-absence net days (n-days) > 14 days among the study population N = 4567 workers with self-reported neck or upper back pain by gender, age group and work ability score (WAS). Mean number of days, number of days on the 90th and 95th percentile (Pctl). N = number of workers

From: Important work demands for reducing sickness absence among workers with neck or upper back pain: a prospective cohort study