比值比（Odds Ratio, OR）作为RR的一个替代指标，在回顾性研究中可以评价暴露因素和疾病的关联强度。什...
However, in a case control study, we use odds ratio instead of risk ratio due to the fact th...
PURPOSE: This study aimed to identify risk factors of unplanned extubation in intensive care unit (ICU) patients with mechanical ventilation using a patient safety model. METHODS: This study was designed to be a case-control study. Data collection sheets, including 29 risk factors of unplanned ...
In the single variable analysis, occupational exposure to animals or animal products was the only risk factor associated with cases at the 5% level (P=0.05, odds ratio (OR) 3.4). Long term illness appeared to be significantly protective (P=0.03, OR 0.3). In multivariable analysis the ...
family relationship and the situation of intercourse with parents.The odds ratio(OR) were 2.752,1.291,(1.296),1.232,1.241,3.348 and 0.549 respectively.Conclusion Teenagers are the focal target people for preventing psychoactive drug abuse,the nice environment of family,school and society and the ...
In a large Danish study, the odds ratio of hospital admission for sepsis was 1.4 and 4.4 for cancer and immunosuppression respectively26. Diabetes is commonly advocated as a risk factor for sepsis26,27. It is proposed that diabetes causes a functional immune deficiency reducing immune cell ...
People with epilepsy (PWE) have an increased suicide prevalence. This study aimed to identify the risk factors for suicidal tendency among PWE in West China. A nested case–control study was designed in a cohort of patients with epilepsy (n = 2087)
The objective of this study was to identify potential risk factors for severe hand, foot and mouth disease (HFMD). In this case-control study, 459 severe HFMD patients and 246 mild HFMD patients from G...
Objective To study the risk factors of lu ng cancer patients in Xi'an. Methods The analysis was based on the data of a case-control study conducted during 1999~2002 in Xi'an, China, and evaluated by the odd ratio (OR). Results Single fact or analysis showed that tobacco smoking(OR=1.6...
The observation of deer and lizards around the home and a history of exposure to ticks were associated with Lyme disease (deer, odds ratio (OR) = 2.53, 95% confidence interval (CI) 1.25-5.15; lizards, OR = 2.14, 95% CI 1.14-4.04). However, the only activity associated with Lyme ...