Abstract
Purpose
Materials and Methods
Results
Conclusion
Figures and Tables
Table 1
An alcohol drinker was defined as a person with current alcohol intake more than once a week and a smoker was defined as a current cigarette smoker. Regular exercise was defined as exercise or physical work for more than 30 minutes three times a week.
RT-PCR, reverse transcriptase-polymerase chain reaction.
*Influenza A (H1N1)-positive was defined by a positive result on real-time RT-PCR. Conversely, a negative result on RT-PCR was defined as influenza A (H1N1)-negative. p values between influenza A (H1N1)-positive and negative were calculated with the t-test, Wilcoxon's rank sum test (for continuous variables) or χ2-test, and Fisher exact test (for categorical variables).
†Underlying conditions: asthma, chronic pulmonary disease, coronary heart disease, Hypertension, Diabetes Mellitus, thyroid disease, chronic renal failure, cancer, immune deficiency disease, cerebrovascular disease, chronic liver disease or pregnancy.
Table 4
The CDC criteria are the presence of fever (> 37.8℃ or previous medication with antipyretics) plus one or more of the following: rhinorrhea, nasal congestion, sore throat, or cough. The WHO criteria are the sudden onset of fever (> 38℃) and cough or sore throat. The ILI criteria are the presence of fever (≥ 37.8℃) plus two of the following four symptoms: cough, sore throat, myalgia, and headache. Our suggested criteria are the presence of cough plus fever or myalgia.
OR, odds ratio; CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value; AUC, area under the curve; ILI, influenza like illness.
*Age, sex adjusted OR, AUC.