Obesity and weight misperception among adults in the Eastern Caribbean Health Outcomes Research Network (ECHORN) Cohort Study.

OBJECTIVE: Prior studies have suggested that weight misperception - underestimating one's actual weight - may be associated with reduced engagement in weight loss programmes, decreasing the success of initiatives to address obesity and obesity-related diseases. The purpose of this study was to examine the factors associated with weight misperception among Eastern Caribbean adults and its influence on engagement in weight control behaviour. METHODS: Data from the Eastern Caribbean Health Outcomes Research Network (ECHORN) Cohort Study were analysed (adults aged 40 and older, residing in the US Virgin Islands, Puerto Rico, Barbados and Trinidad). Weight misperception is defined as participants who under-assess their weight measured by body mass index (BMI). Multivariable logistic regression (n = 1,803 participants) was used to examine the association of weight misperception with BMI category, age, gender, education, history of non-communicable disease and attempt to lose weight. RESULTS: Weight misperception was common, with 54% of overweight (BMI 25-29 kg m-2), and 23% of obese class I (BMI 30-34.9 kg m-2) participants under-assessing their actual weight. Participants with higher levels of education, versus lower, had decreased odds of weight misperception (OR 0.5, p < 0.001). There were no significantly reduced odds of weight misperception in women versus men (OR 1.13, p = 0.367) or in individuals with history of diabetes versus none (OR 0.88, p = 0.418). Participants with weight misperception had 85% (p < 0.0001) lower odds of attempting weight loss than those with accurate weight perception. CONCLUSION: Weight misperception is common among adults with overweight and obesity in the Eastern Caribbean and is associated with lower likelihood of attempting weight loss. Obesity interventions, targeting similar populations, should incorporate approaches for addressing weight misperception to achieve measurable success.

Non-communicable chronic diseases and timely breast cancer screening among women of the Eastern Caribbean Health Outcomes Research Network (ECHORN) Cohort Study.

PURPOSE: The Caribbean population faces a growing burden of multiple non-communicable chronic diseases (NCDs). Breast cancer is the leading cause of cancer death for women in the Caribbean. Given the substantial burden of NCDs across the region, cancer prevention and control strategies may need to be specifically tailored for people with multiple co-morbidities. Preventive screening, such as timely mammography, is essential but may be either facilitated or hampered by chronic disease control. The main objective of this study is to examine the relationship between a chronic disease and timely breast cancer screening. METHODS: We conducted a cross-sectional data analysis using baseline data from the Eastern Caribbean Health Outcomes Research Network (ECHORN) Cohort Study-ECS. Our independent variables were presence of chronic diseases (hypertension or diabetes), defined as having been told by a clinical provider. Our dependent variable was timely screening mammography, as defined by receipt of mammography within the past 2 years. We examined bivariate and multivariate associations of covariates and timely screening mammography. RESULTS: In our sample (n = 841), 52% reported timely screening mammography. Among those with timely screening, 50.8% reported having hypertension, and 22.3% reported having diabetes. In our bivariate analyses, both diabetes and hypertension were associated with timely screening mammography. In partially adjusted models, we found that women with diabetes were significantly more likely to report timely screening mammography than women without diabetes. In our fully adjusted models, the association was no longer significant. Having a usual source of healthcare and a woman's island of residence were significantly associated with timely screening mammography (p < 0.05). CONCLUSIONS: We found that half of eligible women received timely screening mammography. Diabetes and hypertension, though common, are not associated with timely screening mammography. Usual source of care remains an important factor to timely breast cancer screening.

Methods for evaluating temporal trends in noise exposure.

OBJECTIVE: Hearing conservation programs have been mandatory in many US industries since 1983. Since then, three program elements (audiometric testing, hearing protection, and training) have been the focus of much research. By comparison, little has been done on noise exposure evaluation. DESIGN: Temporal trends in time weighted average (TWA) exposures and the fraction of measurements exceeding 85 dBA were evaluated by facility, by exposure group within facility, and by individual worker within facility. STUDY SAMPLE: A large dataset (> 10 000 measurements over 20 years) from eight facilities operated by a multinational aluminum manufacturing company was studied. RESULTS: Overall, exposures declined across locations over the study period. Several facilities demonstrated substantial reductions in exposure, and the results of mean noise levels and exceedance fractions generally showed good agreement. The results of analyses at the individual level diverged with analyses by facility and exposure group within facility, suggesting that individual-level analyses, while challenging, may provide important information not available from coarser levels of analysis. CONCLUSIONS: Validated metrics are needed to allow for assessment of temporal trends in noise exposure. Such metrics will improve our ability to characterize, in a standardized manner, efforts to reduce noise-induced hearing loss.

Organic solvent exposure and hearing loss in a cohort of aluminium workers.

OBJECTIVES: Organic solvent exposure has been shown to cause hearing loss in animals and humans. Less is known about the risk of hearing loss due to solvent exposures typically found in US industry. The authors performed a retrospective cohort study to examine the relationship between solvent exposure and hearing loss in US aluminium industry workers. METHODS: A cohort of 1319 workers aged 35 years or less at inception was followed for 5 years. Linkage of employment, industrial hygiene and audiometric surveillance records allowed for estimation of noise and solvent exposures and hearing loss rates over the study period. Study subjects were classified as "solvent exposed" or not, on the basis of industrial hygiene records linked with individual job histories. High frequency hearing loss was modelled as both a continuous and a dichotomous outcome. RESULTS: Typical solvent exposures involved mixtures of xylene, toluene and/or methyl ethyl ketone (MEK). Recorded solvent exposure levels varied widely both within and between jobs. In a multivariate logistic model, risk factors for high frequency hearing loss included age (OR = 1.06, p = 0.004), hunting or shooting (OR = 1.35, p = 0.049), noisy hobbies (OR = 1.74, p = 0.01), baseline hearing level (OR = 1.04, p<0.001) and solvent exposure (OR = 1.87, p = 0.004). A multivariate linear regression analysis similarly found significant associations between high frequency hearing loss and age (p<0.001), hunting or shooting (p<0.001), noisy hobbies (p = 0.03), solvent exposure (p<0.001) and baseline hearing (p = 0.03). CONCLUSION: These results suggest that occupational exposure to organic solvent mixtures is a risk factor for high frequency hearing loss, although the data do not allow conclusions about dose-response relationships. Industries with solvent-exposed workers should include such workers in hearing conservation programs.

Do ambient noise exposure levels predict hearing loss in a modern industrial cohort?

BACKGROUND: Much of what is known about the exposure-response relationship between occupational noise exposures and hearing loss comes from cross-sectional studies conducted before the widespread implementation of workplace hearing conservation programmes. Little is known about the current relationship of ambient noise exposure measurements to hearing loss risk. AIM: To examine the relationship between rates of high frequency hearing loss and measured levels of noise exposure in a modern industrial workforce. METHODS: Ten-year hearing loss rates were determined for 6217 employees of an aluminium manufacturing company. Industrial hygiene and human resources records allowed for reconstruction of individual noise exposures. Hearing loss rates were compared to ANSI 3.44 predictions based on age and noise exposure. Associations between hearing loss, noise exposure, and covariate risk factors were assessed using multivariate regression. RESULTS: Workers in higher ambient noise jobs tended to experience less high frequency hearing loss than co-workers exposed at lower noise levels. This trend was also seen in stratified analyses of white males and non-hunters. At higher noise exposure levels, the magnitude of hearing loss was less than predicted by ANSI 3.44 formulae. There was no indication that a healthy worker effect could explain these findings. The majority of 10 dB standard threshold shifts (STS) occurred in workers whose calculated ambient noise exposures were less than or equal to 85 dBA. CONCLUSIONS: In this modern industrial cohort, hearing conservation efforts appear to be reducing hearing loss rates, especially at higher ambient noise levels. This could be related to differential use of hearing protection. The greatest burden of preventable occupational hearing loss was found in workers whose noise exposure averaged 85 dBA or less. To further reduce rates of occupational hearing loss, hearing conservation programmes may require innovative approaches targeting workers with noise exposures close to 85 dBA.

The case for comprehensive quality indicator reliability assessment.

To demonstrate the importance of evaluating overall quality indicator reliability, in addition to component or variable level reliability, a comparison of interrater agreement on four chart-abstracted pneumonia-related processes of care was conducted. The hospital medical records of 356 Medicare patients' recent discharges for pneumonia were independently abstracted by different abstractors. Kappa, prevalence and bias-adjusted kappa, P(pos), P(neg), and the Bias Index were used to assess reliability of composite quality indicators and their components. The adjusted kappas for the data elements used to determine eligibility to receive as well as to derive the pneumonia-related processes of care ranged from 0.68 to 1.0. The adjusted kappa associated with overall eligibility to receive the pneumonia-related processes of care was 0.63. The kappa statistics for determining if processes of care were provided ranged from 0.56 to 0.83 and increased to 0.65 and 0.85 upon adjustment for the prevalence effect. Kappas for the composite quality indicators were lower, but improved with adjustment for the prevalence effect. The composite quality indicator with the highest adjusted kappa value was oxygenation assessment (0.93); the composite quality indicator with the lowest adjusted kappa value was antibiotic administration within 8 hours of hospital arrival (0.74). This study establishes the reliability of pneumonia indicators and underscores the need for reliability assessment at the quality indicator level, as well as at the component level.

Associations between initial antimicrobial therapy and medical outcomes for hospitalized elderly patients with pneumonia.

BACKGROUND: Although medical practice guidelines exist, there have been no large-scale studies assessing the relationship between initial antimicrobial therapy and medical outcomes for patients hospitalized with pneumonia. OBJECTIVE: To determine the associations between initial antimicrobial therapy and 30-day mortality for these patients. METHODS: Hospital records for 12945 Medicare inpatients (> or = 65 years of age) with pneumonia were reviewed. Associations between initial antimicrobial regimens and 30-day mortality were assessed with Cox proportional hazards models, adjusting for baseline differences in patient characteristics, illness severity, and processes of care. Comparisons were made with patients treated with a non-pseudomonal third-generation cephalosporin alone (the reference group). RESULTS: Initial treatment with a second-generation cephalosporin plus macrolide (hazard ratio [HR], 0.71; 95% confidence interval [CI], 0.52-0.96), a non-pseudomonal third-generation cephalosporin plus macrolide (HR, 0.74; 95% CI, 0.60-0.92), or a fluoroquinolone alone (HR, 0.64; 95% CI, 0.43-0.94) was independently associated with lower 30-day mortality. Adjusted mortality among patients initially treated with these 3 regimens became significantly lower than that in the reference group beginning 2, 3, and 7 days, respectively, after hospital admission. Use of a beta-lactam/beta-lactamase inhibitor plus macrolide (HR, 1.77; 95% CI, 1.28-2.46) and an aminoglycoside plus another agent (HR, 1.21; 95% CI, 1.02-1.43) were associated with an increased 30-day mortality. CONCLUSIONS: In this study of primarily community-dwelling elderly patients hospitalized with pneumonia, 3 initial empiric antimicrobial regimens were independently associated with a lower 30-day mortality. The more widespread use of these antimicrobial regimens is likely to improve the medical outcomes for elderly patients with pneumonia.

Improving the care of patients with community-acquired pneumonia: a multihospital collaborative QI project.

BACKGROUND: Performance of several processes of care was measured in eight acute care hospitals in Connecticut which provided inpatient treatment to 713 elderly patients with community-acquired pneumonia (CAP). BASELINE DATA ABSTRACTION AND FEEDBACK: Chart review feedback was provided, and the hospitals were requested to design their own quality improvement (QI) interventions, after which re-examination of process of care performance was conducted. HOSPITAL QI INTERVENTIONS: Six of the eight hospitals had submitted QI plans. The quality indicators dealing with timeliness of antibiotic delivery were specifically addressed by five hospitals. However, each hospital also picked one or two other process of care for intervention. RESULTS: The mean time to antibiotic administration decreased from 5.5 hours (+/- 0.2) to 4.7 hours (+/- 0.3; P < 0.0001), and the percentage of patients who received antibiotics within four hours increased from 41.5% to 61.6% (P < 0.0001). DISCUSSION: This project called for obtaining buy-in from both the clinician and administrative representatives of each hospital early in the process. In this way, the targeted processes of care were likely to have relevance for each of the participating hospitals. Education of practicing physicians and other health professionals, as the method chosen by each hospital to address delays in antibiotic administration, appears to have been successful in this project as part of a multifaceted intervention. The project also helped establish a collegial environment that has served as the basis for more ambitious pneumonia QI projects. SUMMARY AND CONCLUSIONS: Widespread improvements in process of care performance can result from hospitals' participation in a Quality improvement Organization collaboration.

Improving the care of patients with community-acquired pneumonia: a multihospital collaborative QI project.

BACKGROUND: Performance of several processes of care was measured in eight acute care hospitals in Connecticut which provided inpatient treatment to 713 elderly patients with community-acquired pneumonia (CAP). BASELINE DATA ABSTRACTION AND FEEDBACK: Chart review feedback was provided, and the hospitals were requested to design their own quality improvement (QI) interventions, after which reexamination of process of care performance was conducted. HOSPITAL QI INTERVENTIONS: Six of the eight hospitals had submitted QI plans. The quality indicators dealing with timeliness of antibiotic delivery were specifically addressed by five hospitals. However, each hospital also picked one or two other processes of care for intervention. RESULTS: The mean time to antibiotic administration decreased from 5.5 hours (+/- 0.2) to 4.7 hours (+/- 0.3; p < 0.0001), and the percentage of patients who received antibiotics within four hours increased from 41.5% to 61.8% (p < 0.0001). DISCUSSION: This project called for obtaining buy-in from both the clinician and administrative representatives of each hospital early in the process. In this way, the targeted processes of care were likely to have relevance for each of the participating hospitals. Education of practicing physicians and other health professionals, as the method chosen by each hospital to address delays in antibiotic administration, appears to have been successful in this project as part of a multifaceted intervention. The project also helped establish a collegial environment that has served as the basis for more ambitious pneumonia QI projects. SUMMARY AND CONCLUSIONS: Widespread improvements in process of care performance can result from hospitals' participation in Quality Improvement Organization collaboration.

Quality of care, process, and outcomes in elderly patients with pneumonia.

CONTEXT: Pneumonia is a frequent cause of hospitalization and death among elderly patients, but the relationships between processes of care for pneumonia and outcomes are uncertain, making quality improvement a challenge. OBJECTIVES: To assess quality of care for Medicare patients hospitalized with pneumonia and to determine whether process of care performance is associated with lower 30-day mortality. DESIGN: Multicenter retrospective cohort study with medical record review. SETTING: A total of 3555 acute care hospitals throughout the United States. PATIENTS: A total of 14069 patients at least 65 years old hospitalized with pneumonia. MAIN OUTCOME MEASURES: Four processes of care: time from hospital arrival to initial antibiotic administration; blood culture collection before initial hospital antibiotics; blood culture collection within 24 hours of hospital arrival; and oxygenation assessment within 24 hours of hospital arrival. Associations between processes of care and 30-day mortality were determined with logistic regression analysis. RESULTS: National estimates of process-of-care performance were antibiotic administration within 8 hours of hospital arrival, 75.5% (95% confidence interval [CI], 73.1-77.9); blood cultures before antibiotics, 57.3% (95% CI, 54.5-60.1); initial blood culture collection, 68.7% (95% CI, 66.2-71.2); and initial oxygenation assessment, 89.3% (95% CI, 87.5-90.9). Lower 30-day mortality was associated with antibiotic administration within 8 hours of hospital arrival (odds ratio [OR], 0.85; 95% CI, 0.75-0.96) and blood culture collection within 24 hours of arrival (OR, 0.90; 95% CI, 0.81-1.00). State and territory performance estimates varied from 49.0% to 89.7% for antibiotics given within 8 hours and from 45.6% to 82.6% for blood cultures drawn within 24 hours. CONCLUSIONS: Administering antibiotics within 8 hours of hospital arrival and collecting blood cultures within 24 hours were associated with improved survival. The fact that states varied widely in the performance of these measures suggests that opportunities exist to improve hospital care of elderly patients with pneumonia.

Mammography underutilization among older women in Connecticut.

OBJECTIVES: The primary goals were to examine mammography use rates among older women in Connecticut and to determine if there was significant variation among different areas and racial groups in the state. The secondary goal was to examine what impact the initiation of Medicare reimbursement for mammography screening has had on mammography use. DESIGN: Statewide use rates were determined by retrospective Medicare Part B mammography claims analysis. Small area analysis methodology (SAA) was used to identify mammography rates for 23 hospital service areas (HSAs), representing all of the catchment areas for Connecticut's acute care hospitals. PARTICIPANTS: Female Medicare beneficiaries 65 years and older with Part B coverage residing in Connecticut during the study period. MEASUREMENTS: The main outcome (the use of at least one mammogram) was calculated for the calendar years 1991, 1992, and 1993. Mean annual use rates in 1993 were generated for the 23 HSAs and the different racial groups in Connecticut. To examine the effect that Medicare reimbursement for screening mammograms has had on mammography use, rates were calculated for women who met Medicare reimbursement criteria in 1991 through 1993. The rates in 1992 and 1993 were then compared with those in 1991, when the reimbursement program was first initiated. MAIN RESULTS: The mean statewide annual rates among women aged 65 years and older were 23.4% (1991), 24.5% (1992), and 24.9% (1993). The mammography use rates among black women 65 years and older were significantly lower than their white peers in 1991 (18.8% black vs 23.8% white, P < .001), 1992 (20.6% vs 24.7%, P < .001), and 1993 (22.0% vs 25.1%, P < .001). Significant variation was identified among hospital service areas (HSAs) within the state for each time interval studied. The use rates among women aged 65 years and older who were eligible for Medicare screening mammography reimbursement increased significantly from 14.6% in 1991, when Medicare reimbursement for screening mammograms was first initiated, to 18.9% in 1992 (P < .001). The rates in 1993 (17.4%) also increased from the baseline year 1991 (P < .001). However, the observed increases since 1991 have been limited in magnitude. CONCLUSIONS: Low mammography use persists among older women in Connecticut and, in particular, among older black women. The initiation of Medicare reimbursement for screening mammograms in 1991 has had some impact on mammography use although its effects are still limited. Through the use of small area analysis methodology, significant underutilization of mammography in localized areas of the state was identified. These findings have facilitated local outreach interventions. Additional research is needed to understand if health service barriers are contributing to the local variation in rates observed in this study.