• A retrospective cohort study was performed on patients with PE. (ersjournals.com)
  • Design Retrospective cohort study. (bmj.com)
  • This retrospective cohort study was conducted on 70 895 Korean women who delivered a singleton in 1999, with their prepregnancy hemoglobin concentration measured at health examinations in 1997-1999. (nature.com)
  • This was a retrospective cohort study that tested serum samples collected from 13 to 49-year-old study participants that were residing in two Ugandan Lake Victoria fishing communities of Kasenyi (a mainland) and Jaana (an island). (biomedcentral.com)
  • In this single-center retrospective cohort study we examined if the complications of the intravenous treatment with valproic acid is different in patients with or without diabetes. (biomedcentral.com)
  • A case-control study is often used to produce an odds ratio, which is an inferior measure of strength of association compared to relative risk, but new statistical methods make it possible to use a case-control study to estimate relative risk, risk differences, and other quantities. (wikipedia.org)
  • Methods This is a retrospective study using the National Health and Nutrition Survey. (bmj.com)
  • METHODS: This is a retrospective study in 383 patients with DTC who were treated with surgery followed by RIT. (minervamedica.it)
  • METHODS: Retrospective, epidemiological, cross-sectional study using Bayesian multivariable logistic regression to assess risk factors for hyperthyroidism. (avmi.net)
  • METHODS: A retrospective analysis of consecutive dermatitis patients in 2015-2020 was performed. (lu.se)
  • Methods: As a retrospective quantitative research design was used, 173 maternal records of pregnant teenagers from 13 to 19 years were sampled from six district hospitals and Community Health Centres (CHCs) between 01 January 2017 and 31 December 2019 to undergo systematic random sampling. (bvsalud.org)
  • Methods: we conducted a retrospective case-control study at the Provincial Hospital Center in the city of Settat since June 1, 2020 to June 1, 2021. (bvsalud.org)
  • Mikko Tarvonen, Ph.D., from the University of Helsinki, and colleagues compared different fetal surveillance methods and their association with adverse short- and long-term fetal and neonatal outcomes in a retrospective cohort of deliveries. (msdmanuals.com)
  • Methods: A retrospective case-control study was conducted in the four coastal villages in Tacloban City with the highest numbers of typhoon-associated deaths. (who.int)
  • To assess potential risk factors, CDC, in collaboration with French and British public health authorities, conducted a retrospective case-control study using data reported to national surveillance systems in the United States, France, and the United Kingdom. (cdc.gov)
  • In a multivariate logistic regression analysis, high pain intensity (odds ratio (OR) =2.742, 95% confidence interval (CI): 1.022 - 7.353, P =0.045), high pain catastrophizing (OR=4.185, 95% CI: 1.697 - 10.324, P =0.002), greater level of depression (OR =3.330, 95% CI: 1.127 - 9.837, P =0.030) were significantly associated with clinical insomnia. (medsci.org)
  • The logistic regression analysis within the subpopulation of truck drivers showed that the odds ratio for arterial hypertension was 3.20, for smoking-2.48. (cdc.gov)
  • the analysis of binary outcomes for retrospective and prospective data. (edu.au)
  • retrospective observational study. (isciii.es)
  • A retrospective analysis was performed on data from 462 patients who underwent burr hole trephination (BHT) surgery for CSDH at five hospitals from March 2010 to June 2021. (jkns.or.kr)
  • In those undergoing curative surgery for gastrointestinal (GI) tract cancers, Black patients were less likely to receive standard of care treatment, a large retrospective study found. (medpagetoday.com)
  • Among more than half a million such patients, lower odds of negative surgical margins (odds ratio [OR] 0.96, 95% CI 0.93-0.98) and adequate lymphadenectomy (OR 0.89, 95% CI 0.87-0.91) were observed for Black versus white patients, according to Sajid Khan, MD, of the Yale School of Medicine in New Haven, Connecticut, and colleagues. (medpagetoday.com)
  • In their study, they found that Black patients had lower odds of negative surgical margins following esophagectomy proctectomy, and biliary resections (with ORs ranging from 0.71-0.75). (medpagetoday.com)
  • This retrospective and cross-sectional study aims to identify the risk factors associated with clinical insomnia in FBSS patients. (medsci.org)
  • Odds ratio of different risk factors like age, sex, TNM stage, fTg and Anti-Tg Ab were compared between patients with and without incomplete response 1 and 2 years after treatment. (minervamedica.it)
  • In a large retrospective review of 379 patients, Sugihara et al confirmed the opinion that early surgical intervention reduces mortality. (medscape.com)
  • Increasing the number of controls above the number of cases, up to a ratio of about 4 to 1, may be a cost-effective way to improve the study. (wikipedia.org)
  • A retrospective study, on the other hand, looks backwards and examines exposures to suspected risk or protection factors in relation to an outcome that is established at the start of the study. (wikipedia.org)
  • This study was a retrospective cross-sectional study. (hindawi.com)
  • STUDY DESIGN: Retrospective consecutive case series. (who.int)
  • This is a retrospective study using routinely collected data and reported per the RECORD Statement [ 14 ]. (biomedcentral.com)
  • A retrospective case study of 420 respondents with psoriasis from a 2005 telephone and email survey was conducted. (accessdermatology.com)
  • Kim, S.H. Clinical insomnia and associated factors in failed back surgery syndrome: a retrospective cross-sectional study. (medsci.org)
  • While the expert-based occupational exposure assessment approach has been considered the reference method for retrospective population-based studies, its implementation in large study samples has become prohibitive. (biomedcentral.com)
  • We present here an approach to retrospective exposure assessment developed for PROtEuS (Prostate Cancer & Environment Study), a population-based case-control study comprising approximately 4000 subjects in Montreal, Canada. (biomedcentral.com)
  • A retrospective comparative study was performed. (lww.com)
  • Study design and site lence of LBW is estimated to be 16% and transcribed onto the data collection worldwide, 19% in the least developed This study was a retrospective, hospital- form. (who.int)
  • A retrospective cohort analysis was performed of the cancer incidence and general mortality among a cohort of Florida licensed pesticide applicators. (cdc.gov)
  • Proportional mortality ratio studies and mortality odds ratio were performed. (cdc.gov)
  • Hospital factors explained 10% of the variation (ICC = 0.10), and the median odds ratio (MOR) was 2.03. (biomedcentral.com)
  • The researchers found that in fetuses of women with ultrasound transducer alone, neonatal encephalopathy and severe acidemia were significantly higher compared with concurrent external fetal and maternal heart rate recording (odds ratios, 1.48 and 2.03, respectively). (msdmanuals.com)
  • We present a Bayesian method for translating the knowledge of interrater reliability, which is often available, into knowledge about validity, which is often needed but not directly available, and applying this to correct odds ratios (OR). (bmj.com)
  • We also investigated the intra-rater reliability and degree of attenuation of the hypothetical odds ratio of the panel in retrospective chemical exposure assessment. (nih.gov)
  • This was a retrospective analysis of HIV-related hospitalizations at Tripoli Medical Centre in 2013. (who.int)
  • We performed a retrospective continuous longitudinal analysis comparing cases' and controls' contacts with health services. (suicideinfo.ca)
  • A population-based retrospective case-control analysis was conducted using the Taiwan National Health Insurance Research Database. (psychiatrist.com)
  • For this reason, retrospective investigations are often criticised. (wikipedia.org)
  • In this review I will present the observations that form the bases for several proposed investigations, and what is needed to validate the retrospective observations. (frontiersin.org)
  • In the ultrasound transducer and concurrent ultrasound transducer and maternal heart rate recording groups, the risk for severe neonatal acidemia was increased compared with those monitored with fetal scalp electrode (odds ratios, 2.78 and 1.37, respectively). (msdmanuals.com)
  • Estimation of genotype relative risks from pedigree data by retrospective likelihoods. (snpedia.com)
  • Univariable and multivariable logistic regression analyses were used to estimate the odds ratios (ORs) and 95% CIs for the association between dementia and antidepressant use. (psychiatrist.com)
  • 95% CI : 1.97-4.52) were significantly associated with an increased odds of having a LBW baby. (who.int)
  • Odds ratios for hypertension, heart diseases and related subjective symptoms among local truck drivers were significantly increased by job career, twisting posture, vibration and driving stress. (cdc.gov)
  • Odds ratios for fatigue symptoms were significantly increased by the shortage of recess, vibration and driving stress. (cdc.gov)
  • The odds ratio product (ORP) is a continuous metric of sleep depth that ranges from 0 (very deep sleep) to 2. (frontiersin.org)
  • In contrast to evaluating sleep state in discrete stages (wake, NREM1-NREM3), assigned every 30 s, the odds ratio product (ORP) measures wake/sleep state on a continuous scale from 0 (very deep sleep) to 2.5 (full wakefulness) and makes this assessment every 3 s ( 1 ). (frontiersin.org)
  • A past history of a loss of consciousness while playing football and a recognized concussion while playing football were both associated with increased odds of experiencing a concussion during the 1997 season. (nih.gov)
  • We calculated odds ratios (ORs), with and without adjustment for socioeconomic status, tobacco smoking, alcohol drinking, physical inactivity at leisure time, overweight status, diabetes and hypertension. (cdc.gov)
  • We used conditional logistic regression to calculate odds ratios, adjusted for deprivation. (suicideinfo.ca)
  • An increased risk for neonatal intubation for resuscitation was also seen in association with monitoring with ultrasound transducer alone (odds ratio, 1.22). (msdmanuals.com)
  • The relationship between PESI score and the composite outcome was analysed and odds ratios (OR) were calculated. (ersjournals.com)
  • Using 1990-1999 National Transportation Safety Board (NTSB) records, applying a retrospective case control approach, the authors compared fatal (n=120) and nonfatal (n=577) air taxi and commuter crashes occurring in Alaska for probable cause (the leading factor that caused the event) and pilot performance. (cdc.gov)
  • The attenuation of the odds ratios due to exposure misclassification by the panel was variable and dependent upon the exposure. (nih.gov)
  • Correcting "winner's curse" in odds ratios from genomewide association findings for major complex human diseases. (snpedia.com)