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Risk Factors for Delayed Isolation of Patients with Active Pulmonary Tuberculosis in an Acute-care Hospital.

ABSTRACT: The objective of the current study was to determine the factors associated with delayed isolation of pulmonary tuberculosis (TB). In this retrospective study, data of patients newly diagnosed with pulmonary TB from January 2015 through December 2017 at a referral hospital were reviewed. Delayed recognition of pulmonary TB was defined as failure to initiate airborne isolation within the first 3 days of admission. We analyzed the clinical, microbiological, and radiological factors associated with delayed isolation of pulmonary TB. A total of 134 patients with positive sputum acid-fast bacilli (AFB) cultures were analyzed, of which 44 (33%) were isolated within 3 days after admission. In multivariate logistic regression analysis, older age (p?=?0.01), admission to departments other than Infectious Disease or Pulmonology (p?=?0.005), and presence of malignancy (p?=?0.02) were associated with delayed isolation. Patients with a radiologic diagnosis of active pulmonary TB were likely to be isolated early (p?=?0.01). Better awareness of pulmonary TB among attending practitioners in hospital settings is required. Delay in isolation is associated with older age, malignancy, hospitalization to departments other than Infectious Disease or Pulmonology, and non-confident radiologic diagnosis of active pulmonary TB.

SUBMITTER: Han J

PROVIDER: S-EPMC6424955 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Risk Factors for Delayed Isolation of Patients with Active Pulmonary Tuberculosis in an Acute-care Hospital.

Han Jaijun J Nam Bo Da BD Park Se Yoon SY Park Jebyung J Lee Eunyoung E Lee Eun Jung EJ Hwang Jung Hwa JH Kim Tae Hyong TH

Scientific reports 20190319 1

The objective of the current study was to determine the factors associated with delayed isolation of pulmonary tuberculosis (TB). In this retrospective study, data of patients newly diagnosed with pulmonary TB from January 2015 through December 2017 at a referral hospital were reviewed. Delayed recognition of pulmonary TB was defined as failure to initiate airborne isolation within the first 3 days of admission. We analyzed the clinical, microbiological, and radiological factors associated with ...[more]

PMID: 30890727

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Project description:BackgroundEarly diagnosis and treatment of pulmonary tuberculosis (PTB) is essential for an effective control of the tuberculosis (TB) epidemic. Delayed diagnosis and treatment of TB increases the chance of complications and mortality for the patients, and enhances TB transmission in the population. Therefore, the aim of this study was to characterize patient, healthcare and total delay in diagnosing PTB and assess the effect of clinical and sociodemographic factors on the time until first contact with healthcare or reaching a PTB diagnosis.MethodsRetrospective cohort study that included active PTB patients notified in the National Tuberculosis Surveillance System (SVIG-TB), between 2008 and 2017. Descriptive statistics, Kaplan-Meier estimates, logrank test and Cox proportional hazards model were used to characterize patient, healthcare and total delay and estimate the effect of clinical and sociodemographic variables on these delays. Significance level was set at 0.05.ResultsMedian patient, healthcare and total delays was 37 days (Interquartile range (IQR): 19-71), 8 days (IQR: 1-32) and 62 days (IQR: 38-102), respectively. The median patient delay showed a constant increase, from 33 days in 2008 to 44 days in 2017. The median total delay presented a similar trend, increasing from 59 days in 2008 to 70 days in 2017. Healthcare delay remained constant during the study period. More than half of the PTB cases (82.9%) had a delay > 1 month between symptom onset and diagnosis. In the final Cox model, alcohol abuse, unemployment and being from a high TB incidence country were factors significantly associated with longer patient delay, while being female, having more than 45 years, oncologic and respiratory diseases were associated with longer healthcare delay. Being female, having more than 45 years and being from a high TB incidence country were associated with longer total delay.ConclusionsPatient delay and total delay have increased in recent years. Older patients, patients with alcohol problems, other comorbidities, unemployed or from countries with high TB incidence would benefit from the development of specific public health strategies that could help reduce the delay in TB diagnosis observed in our study. This study emphasizes the need to promote awareness of TB in the general population and among the healthcare community, especially at ambulatory care level, in order to reduce the gap between beginning of symptoms and TB diagnosis.

Project description:BACKGROUND:The problem of population aging is a critical public health concern in modern China, and more tuberculosis (TB) control efforts are needed to reach elderly people at high priority. In this study, we aim to determine the prevalence and identify the risk factors of TB among elderly people in China. METHODS:A multistage cluster-sampled cross-sectional survey was conducted in 2013, and 27 clusters were selected from 10 counties of 10 provinces in China. All consenting participants greater than or equal to 65?years of age were screened for pulmonary TB with a chest X-ray (CXR) and a symptom questionnaire. Three sputum specimens for bacteriological examination by microscopy and culture were collected from those whose screening was positive. Prevalence was calculated, a multiple logistic regression model was performed to confirm the risk factors, and population attributable fraction (PAF) of each risk factor was calculated to indicate the public health significance. RESULTS:Of 38?888 eligible people from 27 clusters, 34?269 participants finished both questionnaire and physical examination. There were 193 active pulmonary TB cases, 62 of which were bacteriologically confirmed. The estimated prevalence of active pulmonary TB and bacteriologically confirmed TB in those 65?years of age and older was 563.19 per 100?000 (95% CI: 483.73-642.65) and 180.92 per 100?000 (95% CI: 135.89-225.96), respectively. Male sex, older age, living in rural areas, underweight, diabetes, close contact of pulmonary TB (PTB) and previous TB history are all risk factors for TB. The risk of TB increased with increasing age and decreasing body mass index (BMI) after adjusting for other factors, and there is a positive dose-response relationship. CONCLUSIONS:In China, active case finding (ACF) could be implemented among elderly people aged 65 and above with underweight, diabetes, close contact history and previous TB history as a priority, which will get significant yields and be cost-effective.

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Risk Factors for Delayed Isolation of Patients with Active Pulmonary Tuberculosis in an Acute-care Hospital.

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Risk Factors for Delayed Isolation of Patients with Active Pulmonary Tuberculosis in an Acute-care Hospital.

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