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关注:1
2013-05-23 12:21
求翻译:Methods. The nationally representative sample comprised of 2323 men aged 30 to 64 (the Health 2000 Survey). The diagnoses of sciatica and chronic low back syndromes were based on a standardized clinical examination by specially trained physicians. Life-long exposure to professional car driving and to physically demanding work was assessed retrospectively via interviews. Logistic regression was used to estimate the risk of clinical chronic low back syndromes related to these exposures, and the risks were presented with odds ratios (OR) with 95% confi dence intervals (95% CI).是什么意思? 待解决
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- 离问题结束还有
Methods. The nationally representative sample comprised of 2323 men aged 30 to 64 (the Health 2000 Survey). The diagnoses of sciatica and chronic low back syndromes were based on a standardized clinical examination by specially trained physicians. Life-long exposure to professional car driving and to physically demanding work was assessed retrospectively via interviews. Logistic regression was used to estimate the risk of clinical chronic low back syndromes related to these exposures, and the risks were presented with odds ratios (OR) with 95% confi dence intervals (95% CI).
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