https://www.selleckchem.com/pr....oducts/apr-246-prima
The additive effect of having both poor work ability and sleep disturbances was modelled with a dummy variable, including both exposures. Poisson log-linear regression was used to calculate risk ratios (RRs) and 95% CIs. Results At follow-up, 9% had developed LNBP. Poor work ability and sleep disturbances were independent risk factors for LNBP; adjusted RR 1.7 (95% CI 1.4 to 2. and 1.4 (95% CI 1.2 to 1.5), respectively. No additive interaction was observed. Conclusion Workers with occasional NBP who have poor work ability a