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[目的 ]研究体质指数 (BMI)与肺癌的关系。[方法 ]以福州市区 1997- 1998年的肺癌新病例 30 0例进行病例对照研究。 [结果 ]随着体质指数的降低 ,肺癌危险性增加约 1倍而且有明显的剂量反应关系 (趋势检验 ,P=0 .0 0 2 )。调整混杂因素及引进膳食营养素 ,其结果变化很小。BMI与肺癌关系仍然存在。 [结论 ]体质指数 (BMI)可能是肺癌的危险因子。增强体质可防癌 ,对提高治疗效果也起一定作用。
[Objective] To study the relationship between body mass index (BMI) and lung cancer. [Methods] A case-control study was conducted on 30 new cases of lung cancer from 1997 to 1998 in Fuzhou District. [Results] With the decrease of body mass index, the risk of lung cancer increased approximately one-fold and there was a significant dose-response relationship (trend test, P=0.020). Adjustment of confounding factors and the introduction of dietary nutrients have resulted in very little change in the results. The relationship between BMI and lung cancer still exists. [Conclusion] The body mass index (BMI) may be a risk factor for lung cancer. Strengthening the body can prevent cancer and also play a role in improving the therapeutic effect.