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Comparison of a frailty short interview to a validated frailty index in adults hospitalized for acute respiratory illness.

ABSTRACT: BACKGROUND:Frailty is an important physiologic factor in studies of influenza and influenza vaccines carried out in older adults and hospitalized populations. Unfortunately, comprehensive assessments of frailty requiring physical assessments and extensive medical record review are not often feasible in time- and resource-limited settings common to studies of influenza and influenza vaccines. METHODS:We developed a 5-question frailty short interview, and implemented it in a multicenter, hospital-based study of influenza over two years. Frailty status defined by the frailty short interview was compared to a validated frailty index based on medical record review of 59 parameters. Agreement between the two frailty measures was assessed, and multivariable linear regression models were used to explore differences between the measures. The association between each frailty measure and likelihood of influenza vaccination was also assessed. RESULTS:During the 2015-2016 and 2016-2017 influenza seasons, 2070 adult patients hospitalized with acute respiratory illness were enrolled and included in analyses. Frailty was frequently identified in the study population; 43% of participants were defined as frail by the frailty short interview and 32% by frailty index. Responses to the frailty short interview were only moderately correlated with the frailty index, and agreement between the two frailty measures was low. Women were more likely to be defined as frail by the frailty short interview than men. White individuals were more likely than other races to be defined as frail by the frailty index. Increasing frailty index was associated with increased likelihood of influenza vaccination, but the frailty short interview was not associated with vaccination. CONCLUSIONS:The frailty short interview provided a feasible and consistent measure of frailty across study hospitals and study years. However, its modest correlation with the frailty index and differential association with likelihood of influenza vaccination highlight differences in the conceptualization of frailty.

SUBMITTER: Petrie JG

PROVIDER: S-EPMC8564875 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:A standard multiplex PCR offers comprehensive testing for respiratory viruses. However, it has traditionally been performed in a referral laboratory with a lengthy turnaround time, which can reduce patient flow through the hospital. We aimed to determine whether the introduction of a rapid PCR, but with limited targets (Cepheid Xpert Flu/RSV XC), was associated with improved outcomes for adults hospitalized with respiratory illness. A controlled quasi-experimental study was conducted across three hospitals in New South Wales, Australia. Intervention groups received standard multiplex PCR during the preimplementation, July to December 2016 (n = 953), and rapid PCR during the postimplementation, July to December 2017 (n = 1,209). Control groups (preimplementation, n = 937, and postimplementation, n = 1,102) were randomly selected from adults hospitalized with respiratory illness during the same periods. The outcomes were hospital length of stay (LOS) and microbiology test utilization (blood culture, urine culture, sputum culture, and respiratory bacterial and virus serologies). The introduction of rapid PCR was associated with a nonsignificant 8.9-h reduction in median LOS (95% confidence interval [CI], -21.5 h to 3.7 h; P = 0.17) for all patients and a significant 21.5-h reduction in median LOS (95% CI, -36.8 h to -6.2 h; P < 0.01) among patients with positive test results in an adjusted difference-in-differences analysis. For patients receiving test results before disposition, rapid PCR use was associated with a significant reduction in LOS, irrespective of test results. Compared with standard PCR testing, rapid PCR use was significantly associated with fewer blood culture (adjusted odds ratio [aOR], 0.67; 95% CI, 0.5 to 0.82; P < 0.001), sputum culture (aOR, 0.56; 95% CI, 0.47 to 0.68, P < 0.001), bacterial serology (aOR, 0.44; 95% CI, 0.35 to 0.55, P < 0.001) and viral serology (aOR, 0.42; 95% CI, 0.33 to 0.53, P < 0.001) tests, but not with fewer urine culture tests (aOR, 0.94; 95% CI, 0.78 to 1.12, P = 0.48). Rapid PCR testing of adults hospitalized with respiratory illnesses can deliver benefits to patients and reduce resource utilization. Future research should consider a formal economic analysis and assess its potential impacts on clinical decision making.

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Comparison of a frailty short interview to a validated frailty index in adults hospitalized for acute respiratory illness.

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