Study Design. Cross-sectional. Objective. To examine whether 3 types of chronic pain are associated with absenteeism and with the number of days absent from work in the general population of Spain. Summary of Background Data. Chronic pain has been associated with absenteeism, but most of the evidence is based on unadjusted analyses and on specifi c professional categories. Methods. A cross-sectional analysis was performed on the basis of data of 8283 Spanish workers. Chronic pain was ascertained from self-reported information on frequent symptoms of pain in the low back and neck and/or migraine in the last 12 months. Absenteeism was defi ned as missing at least 1 day from work because of health problems. Multivariate regression models were adjusted for the main confounders.Results. Health-related absenteeism was reported by 27.8% of subjects. The prevalence of chronic pain was reported 12.3% in the neck, 14.1% in the low back, and 10.3% migraine. In adjusted analyses, absenteeism was associated with chronic neck pain (odds ratio: 1.20; 95% confi dence interval [CI], 1.02-1.40), low back pain (odds ratio: 1.22; 95% CI, 1.06-1.42), and migraine (odds ratio: 1.22; 95% CI, 1.04-1.44). These associations were strongest in younger (18-34 yr) rather than in older workers. Furthermore, those who reported frequent pain in the neck and low back were 44% more likely to be

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