scholarly journals Persistence of COVID-19 Symptoms after Recovery in Mexican Population

2020 ◽  
Vol 17 (24) ◽  
pp. 9367
Author(s):  
Carlos E. Galván-Tejada ◽  
Cintya Fabiola Herrera-García ◽  
Susana Godina-González ◽  
Karen E. Villagrana-Bañuelos ◽  
Juan Daniel De Luna Amaro ◽  
...  
Keyword(s):  
Public Health ◽  
Infectious Disease ◽  
Case Control Study ◽  
Case Control ◽  
Persistent Symptoms ◽  
Margin Of Error ◽  
R Project ◽  
The Moment ◽  
Public Health Strategies ◽  
Control Study

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the coronavirus disease (COVID-19), a highly contagious infectious disease that has caused many deaths worldwide. Despite global efforts, it continues to cause great losses, and leaving multiple unknowns that we must resolve in order to face the pandemic more effectively. One of the questions that has arisen recently is what happens, after recovering from COVID-19. For this reason, the objective of this study is to identify the risk of presenting persistent symptoms in recovered from COVID-19. This case-control study was conducted in one state of Mexico. Initially the data were obtained from the participants, through a questionnaire about symptoms that they had at the moment of the interview. Initially were captured the collected data, to make a dataset. After the pre-processed using the R project tool to eliminate outliers or missing data. Obtained finally a total of 219 participants, 141 recovered and 78 controls. It was used confidence level of 90% and a margin of error of 7%. From results it was obtained that all symptoms have an associated risk in those recovered. The relative risk of the selected symptoms in the recovered patients goes from 3 to 22 times, being infinite for the case of dyspnea, due to the fact that there is no control that presents this symptom at the moment of the interview, followed by the nausea and the anosmia with a RR of 8.5. Therefore, public health strategies must be rethought, to treat or rehabilitate, avoiding chronic problems in patients recovered from COVID-19.

scholarly journals Determinants of virological failure among adults on first-line highly active antiretroviral therapy at public health facilities in Kombolcha town, Northeast, Ethiopia: a case–control study

BMJ Open ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. e036223
Author(s):  
Habtamu Mengist Meshesha ◽  
Zelalem Mehari Nigussie ◽  
Anemaw Asrat ◽  
Kebadnew Mulatu
Keyword(s):  
Public Health ◽  
Antiretroviral Therapy ◽  
Virological Failure ◽  
Highly Active Antiretroviral Therapy ◽  
Case Control Study ◽  
Case Control ◽  
First Line ◽  
Highly Active ◽  
Northeast Ethiopia ◽  
Control Study

ObjectiveTo identify determinants of virological failure among HIV-infected adults on first-line highly active antiretroviral therapy at public health facilities in Kombolcha town, Northeast, Ethiopia, in 2019.MethodsAn unmatched case–control study was conducted from April to May 2019. About 130 cases and 259 controls were selected by simple random sampling. Data were extracted from charts of patients using a structured checklist. Multiple logistic regression analysis was performed to identify possible factors. Hosmer-Lemeshow goodness of fit test was used to check the model. Finally, independent predictor variables of virological failure were identified based on adjusted OR (AOR) with 95% CI and a p value of 0.05.ResultsThe odds of virological failure were 2.4-fold (AOR=2.44, 95% CI 1.353 to 4.411) higher in clients aged <35 years compared with older clients, fivefold (AOR=5.00, 95% CI 2.60 to 9.63) higher in clients who did not disclose their HIV status, threefold (AOR=2.99, 95% CI 1.33 to 6.73) higher in clients with poor adherence, and 7.5-fold (AOR=7.51, 95% CI 3.98 to 14.14) higher in clients who had recent CD4 count of ≤250 cells/mm3.Conclusion and recommendationThis study revealed that age, marital status, occupation, disclosure status, baseline functional status, missed clinic visit, current antiretroviral therapy regimen, adherence to treatment and recent CD4 count were significantly associated with virological failure. Therefore, adherence support should be strengthened among clients. Missed clinic visits should also be reduced, as it could help clients better adhere to treatment, and therefore boost their immunity and suppress viral replication.

scholarly journals Are infectious diseases risk factors for sarcoidosis or a result of reverse causation? Findings from a population-based nested case–control study

2020 ◽  
Vol 35 (11) ◽  
pp. 1087-1097 ◽  
Author(s):  
Marios Rossides ◽  
Susanna Kullberg ◽  
Johan Askling ◽  
Anders Eklund ◽  
Johan Grunewald ◽  
...  
Keyword(s):  
Infectious Disease ◽  
Infectious Diseases ◽  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Disease Onset ◽  
Latency Period ◽  
Case Control ◽  
Reverse Causation ◽  
Nested Case Control ◽  
Control Study

AbstractFindings from molecular studies suggesting that several infectious agents cause sarcoidosis are intriguing yet conflicting and likely biased due to their cross-sectional design. As done in other inflammatory diseases to overcome this issue, prospectively-collected register data could be used, but reverse causation is a threat when the onset of disease is difficult to establish. We investigated the association between infectious diseases and sarcoidosis to understand if they are etiologically related. We conducted a nested case–control study (2009–2013) using incident sarcoidosis cases from the Swedish National Patient Register (n = 4075) and matched general population controls (n = 40,688). Infectious disease was defined using inpatient/outpatient visits and/or antimicrobial dispensations starting 3 years before diagnosis/matching. Adjusted odds ratios (aOR) of sarcoidosis were estimated using conditional logistic regression and tested for robustness assuming the presence of reverse causation bias. The aOR of sarcoidosis associated with history of infectious disease was 1.19 (95% confidence interval [CI] 1.09, 1.29; 21% vs. 16% exposed cases and controls, respectively). Upper respiratory and ocular infections conferred the highest OR. Findings were similar when we altered the infection definition or varied the infection-sarcoidosis latency period (1–7 years). In bias analyses assuming one in 10 infections occurred because of preclinical sarcoidosis, the observed association was completely attenuated (aOR 1.02; 95% CI 0.90, 1.15). Our findings, likely induced by reverse causation due to preclinical sarcoidosis, do not support the hypothesis that common symptomatic infectious diseases are etiologically linked to sarcoidosis. Caution for reverse causation bias is required when the real disease onset is unknown.

scholarly journals Determinants of Postpartum IUCD Utilization Among Mothers Who Gave Birth in Gamo Zone Public Health Facilities, Southern Ethiopia: a Case-Control Study

2020 ◽  
Vol Volume 11 ◽  
pp. 125-133
Author(s):  
Seid Jemal Mohammed ◽  
Weynshet Gebretsadik ◽  
Gesila Endashaw ◽  
Mulugeta Shigaz Shimbre ◽  
Kenzudin Assfa Mossa ◽  
...  
Keyword(s):  
Public Health ◽  
Case Control Study ◽  
Case Control ◽  
Health Facilities ◽  
Southern Ethiopia ◽  
Public Health Facilities ◽  
Control Study

scholarly journals Metabolome analysis for pancreatic cancer risk in nested case-control study: Japan Public Health Center-based prospective Study

2018 ◽  
Vol 109 (5) ◽  
pp. 1672-1681 ◽  
Author(s):  
Takashi Nakagawa ◽  
Takashi Kobayashi ◽  
Shin Nishiumi ◽  
Akihisa Hidaka ◽  
Taiki Yamaji ◽  
...  
Keyword(s):  
Public Health ◽  
Pancreatic Cancer ◽  
Cancer Risk ◽  
Prospective Study ◽  
Health Center ◽  
Case Control Study ◽  
Case Control ◽  
Metabolome Analysis ◽  
Nested Case Control ◽  
Control Study

Plasma Isoflavones and Subsequent Risk of Prostate Cancer in a Nested Case-Control Study: The Japan Public Health Center

2008 ◽  
Vol 26 (36) ◽  
pp. 5923-5929 ◽  
Author(s):  
Norie Kurahashi ◽  
Motoki Iwasaki ◽  
Manami Inoue ◽  
Shizuka Sasazuki ◽  
Shoichiro Tsugane
Keyword(s):  
Public Health ◽  
Prostate Cancer ◽  
Health Center ◽  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Case Control ◽  
Conditional Logistic Regression Model ◽  
Public Health Center ◽  
Nested Case Control ◽  
Control Study

PurposeThe incidence of prostate cancer is much lower in Japanese than Western populations. Given the preventive effects of isoflavones on carcinogenesis in the prostate in many nonhuman studies and the high consumption of isoflavones in Japanese, this low incidence may be partly due to the effects of soy.Patients and MethodsWe conducted a nested case-control study within the Japan Public Health Center–based Prospective Study. A total of 14,203 men aged 40 to 69 years who had returned the baseline questionnaire and provided blood samples were observed from 1990 to 2005. During a mean of 12.8 years of follow-up, 201 newly diagnosed prostate cancers were identified. Two matched controls for each case were selected from the cohort. Conditional logistic regression model was used to estimate the odds ratios (ORs) and 95% CIs for prostate cancer in relation to plasma levels of isoflavone.ResultsPlasma genistein level tended to be inversely associated with the risk of total prostate cancer. Although plasma daidzein showed no association, the highest tertile for plasma equol, a metabolite of daidzein, was significantly associated with a decreased risk of total prostate cancer (OR = 0.60; 95% CI, 0.36 to 0.99; Ptrend= .04). These inverse associations were strengthened after analysis was confined to localized cases, with ORs in the highest group of plasma genistein and equol compared with the lowest of 0.54 (95% CI, 0.29 to 1.01; Ptrend= .03) and 0.43 (95% CI, 0.22 to 0.82; Ptrend= .02), respectively. Plasma isoflavone levels were not statistically significantly associated with the risk of advanced prostate cancer.ConclusionIsoflavones may prevent the development of prostate cancer.

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