Working in a cold environment, feeling cold at work and chronic pain: a cross-sectional analysis of the Tromsø Study

• Published in: BMJ Open
• Main Authors: Farbu, Erlend Hoftun, Skandfer, Morten, Nielsen, Christopher, Brenn, Tormod, Stubhaug, Audun, Höper, Anje Christina
• Other Authors: Helse- og Omsorgsdepartementet, Troms County, Universitetet i Tromsø, Norwegian Institute of Public Health, Helse Nord RHF
• Format: Article in Journal/Newspaper
• Language: English
• Published: BMJ 2019
• Subjects: Tromsø
• Online Access: http://dx.doi.org/10.1136/bmjopen-2019-031248; https://syndication.highwire.org/content/doi/10.1136/bmjopen-2019-031248

Aim The aim of this study was to investigate if working in a cold environment and feeling cold at work are associated with chronic pain (ie, lasting ≥3 months). Methods We used data from the sixth survey (2007–2008) of the Tromsø Study. Analyses included 6533 men and women aged 30–67 years who were not retired, not receiving full-time disability benefits and had no missing values. Associations between working in a cold environment, feeling cold at work and self-reported chronic pain were examined with logistic regression adjusted for age, sex, education, body mass index, insomnia, physical activity at work, leisure time physical activity and smoking. Results 779 participants reported working in a cold environment ≥25% of the time. This exposure was positively associated with pain at ≥3 sites (OR 1.57; 95% CI 1.23 to 2.01) and with neck, shoulder and leg pain, but not with pain at 1–2 sites. Feeling cold sometimes or often at work was associated with pain at ≥3 sites (OR 1.58; 95% CI 1.22 to 2.07 and OR 3.90; 95% CI 2.04 to 7.45, respectively). Feeling cold often at work was significantly and positively associated with pain at all sites except the hand, foot, stomach and head. Conclusion Working in a cold environment was significantly associated with chronic pain. The observed association was strongest for pain at musculoskeletal sites and for those who often felt cold at work.