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Low back pain and sciatica prevalence and intensity reported in a Mediterranean country: ordinal logistic regression analysis.

The objective of this retrospective cross-sectional study was to estimate the 6-month prevalence and severity of low back pain and sciatica in a representative sample of an adult Mediterranean population. The study group comprised a sample of 674 adults aged 20 years or older from a mainly (74.8%) urban population. Information regarding low back pain and sciatica prevalence and severity and its related aspects, as well as socioeconomic and demographic characteristics, was collected by personal interviews with a validated questionnaire. The association between the intensity of low back pain and sciatica with several sociodemographic parameters was tested using ordered univariate and multivariate logistic regression analysis.A total of 266 (39.5%) patients reported low back pain and 166 (24.6%) reported sciatica during the previous 6-month period. A woman living in a Mediterranean country reported low back pain of increased severity if she was a married housewife aged older than 65 years who was a smoker and suffered from depression. More severe sciatic pain was reported by working married women older than 65 years who were smokers.