Table VIII. Stratification analysis in five-year follow-up.

^aData present here were the value of follow up from 90 days after index date to the respective following up years. ^bPropensity score matching was performed on age at index, sex, race, body mass index, status of comorbidities (including diabetes mellitus, hypertension, hyperlipidemia), status of smoking, alcoholism and substance use, medical utilization status, lab data regarding inflammation status (CRP) and socioeconomic status (problems related to housing and economic circumstances, persons with potential health hazards related to socioeconomic and psychosocial circumstances) and the history of endotracheal intubation.