One year incidence of low back pain among male residents of Copenhagen aged 40-59.
D000328:Adult; D001416:Back Pain / Q000453:epidemiology*; D001794:Blood Pressure; D003718:Denmark; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008393:Marriage; D008875:Middle Aged; D005082:Physical Exertion; D012959:Socioeconomic Factors; D013315:Stress, Psychological; D011795:Surveys and Questionnaires