Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi
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Zhonghua Liu Xing Bing Xue Za Zhi · Mar 2014
[Body mass index and cancer incidence:a prospective cohort study in northern China].
To evaluate the association and its strength between body mass index (BMI, kg/m(2)) and cancer incidence in a large-scale population-based cohort study. ⋯ The association between BMI and cancer incidence varied by cancer site. Underweight increased the risk of gastric cancer and liver cancer in males, and obesity increased the risk of colon cancer in males, breast cancer and ovarian cancer in females. However, overweight might played a protective role in lung cancer incidence and bladder cancer incidence in males and obesity might play a protective role in lung cancer incidence in male non-smokers.
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Zhonghua Liu Xing Bing Xue Za Zhi · Mar 2014
[Implication of inverse-probability weighting method in the evaluation of diagnostic test with verification bias].
To evaluate and adjust the verification bias existed in the screening or diagnostic tests. Inverse-probability weighting method was used to adjust the sensitivity and specificity of the diagnostic tests, with an example of cervical cancer screening used to introduce the Compare Tests package in R software which could be implemented. Sensitivity and specificity calculated from the traditional method and maximum likelihood estimation method were compared to the results from Inverse-probability weighting method in the random-sampled example. ⋯ In the analysis of data with randomly missing verification by gold standard, the sensitivity and specificity calculated by traditional method were 90.48% (95%CI:80.74-95.56)and 71.96% (95%CI:68.71-75.00), respectively. The adjusted sensitivity and specificity under the use of Inverse-probability weighting method were 82.25% (95% CI:63.11-92.62) and 85.80% (95% CI: 85.09-86.47), respectively, whereas they were 80.13% (95%CI:66.81-93.46)and 85.80% (95%CI: 84.20-87.41) under the maximum likelihood estimation method. The inverse-probability weighting method could effectively adjust the sensitivity and specificity of a diagnostic test when verification bias existed, especially when complex sampling appeared.
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Zhonghua Liu Xing Bing Xue Za Zhi · Nov 2013
Controlled Clinical Trial[Study on the effectiveness of continuous local infiltration analgesia and related short-term prognosis after laparotomy].
To evaluate the effectiveness of incisional infusion through local anesthetics under a continuous-infusion elastomeric pump for the management of postoperative pain after laparotomy, on reducing the amount of opioids being used after surgery. ⋯ Continuous infusion of local anesthetic under an elastomeric infusion pump post the laparotomy, a similar analgesic effect could be seen on those patient-controlled intravenous analgesia within the first 48 hours, it could also reduce opioid consumption and postoperative symptoms as nausea or vomiting, which all appeared to be associated with the earlier recovery of bowel function.
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Zhonghua Liu Xing Bing Xue Za Zhi · Jun 2013
[Economic costs of both overweight and obesity among Chinese urban and rural residents, in 2010].
Using the latest available data to estimate the direct economic burden of overweight and obesity in China. ⋯ The economic costs of overweight and obesity increased over the years, accounting for 4.5% of the national health expenditure. The high economic burden of overweight and obesity implied the need to develop and implement policies that addressing the behavior-related risk factors and the obese-genic environment, in order to curb the NCDs epidemic in China.