Prevention and control of COVID-19 by primary health care facilities in China: a field-survey-based qualitative study in three typical cities.

Background: During the coronavirus disease 2019 (COVID-19) containment, primary health care (PHC) facilities inChina played an important role in providing both healthcare and public care services to community populations. The tasks of COVID-19 containment facilitated by PHC facilities were different among different regions and during different periods of COVID-19 pandemic. We sought to investigate the gaps on task participation, explore existing problems and provide corresponding solutions.

Independent risk factors for hypoxemia after surgery for acute aortic dissection.

Objectives: To determine risk factors associated with postoperative hypoxemia after surgery for acute type A aortic dissection.

Methods: We retrospectively analyzed the clinical data of 192 patients with acute type A aortic dissection who underwent surgery in Qingdao Municipal Hospital, Medical College of Qingdao University, Qingdao, China between January 2007 and December 2013. Patients were divided into hypoxemia group (n=55) [arterial partial pressure of oxygen (PaO2)/fraction of inspired oxygen (FiO2) ≤ 200 mm Hg] and non-hypoxemia group (n=137) [PaO2/FiO2 > 200 mm Hg].

[Survival analysis on 3103 HIV/AIDS patients receiving antiretroviral treatment in Dehong prefecture, Yunnan province].

Objective: To determine the survival rate of HIV/AIDS patients after receiving free antiretroviral treatment in Dehong prefecture, Yunnan province.

Methods: A retrospective cohort analysis was conducted on all the HIV/AIDS patients aged over 16 years who had started antiretroviral treatment during January 2007 throughout December 2009 in Dehong prefecture.

Results: A total of 3103 HIV/AIDS patients had received antiretroviral treatment during the study period.