Carol L. Link
Boston University
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Featured researches published by Carol L. Link.
The Journal of Urology | 2009
Varant Kupelian; Kevin T. McVary; Steven A. Kaplan; Susan A. Hall; Carol L. Link; Lalitha P. Aiyer; Patrick Mollon; Nihad Tamimi; Raymond C. Rosen; John B. McKinlay
PURPOSE In this study we investigated the relationship between lower urinary tract symptoms as defined by the American Urological Association symptom index and the metabolic syndrome, and determined the relationship between individual symptoms comprising the American Urological Association symptom index and the metabolic syndrome. MATERIALS AND METHODS The Boston Area Community Health Survey used a 2-stage cluster design to recruit a random sample of 2,301 men 30 to 79 years old. Analyses were conducted on 1,899 men who provided blood samples. Urological symptoms comprising the American Urological Association symptom index were included in the analysis. The metabolic syndrome was defined using a modification of the Adult Treatment Panel III guidelines. The association between lower urinary tract symptoms and the metabolic syndrome was assessed using odds ratios and 95% confidence intervals estimated using logistic regression models. RESULTS Increased odds of the metabolic syndrome were observed in men with mild to severe symptoms (American Urological Association symptom index 2 to 35) compared to those with an American Urological Association symptom index score of 0 or 1 (multivariate OR 1.68, 95% CI 1.21-2.35). A statistically significant association was observed between the metabolic syndrome and a voiding symptom score of 5 or greater (multivariate adjusted OR 1.73, 95% CI 1.06-2.80) but not for a storage symptom score of 4 or greater (multivariate adjusted OR 0.94, 95% CI 0.66-1.33). Increased odds of the metabolic syndrome were observed even with mild symptoms, primarily for incomplete emptying, intermittency and nocturia. These associations were observed primarily in younger men (younger than 60 years) and were null in older men (60 years old or older). CONCLUSIONS The observed association between urological symptoms and the metabolic syndrome provides further evidence of common underlying factors between lower urinary tract symptoms and chronic conditions outside the urinary tract.
American Journal of Epidemiology | 2008
Sharon L. Tennstedt; Carol L. Link; William D. Steers; John B. McKinlay
Most epidemiologic studies of urine leakage in the United States report on women and White populations. In this study, the authors determined the prevalence of urine leakage across genders and racial/ethnic groups in a population-based sample of 5,506 adults aged 30-79 years and identified factors related to leakage within genders and racial/ethnic groups. The prevalence of weekly urine leakage was 8% overall, 10.4% in women, and 5.3% in men. White women (11.7%) were more likely than Black (9.4%) and Hispanic (7.3%) women to report weekly leakage and to report stress-type (35.4% vs. 9.4% and 14.5%, respectively) and urge-type (13.4% vs. 3.3% and 10.8%, respectively) leakage. Rates and leakage types for men did not vary by race/ethnicity. For women, central obesity, asthma, and arthritis increased the odds of weekly leakage. For men, the odds of leakage increased for Blacks and Whites at ages 50 and 60 years, respectively, and for Hispanics of higher social class. For both genders, various comorbid conditions, including heart disease, asthma, and depression, increased the odds of leakage in varying racial/ethnic groups. The authors conclude that types of and risk factors for urine leakage vary by gender and racial/ethnic group.
BJUI | 2007
Chris Robertson; Carol L. Link; Erol Onel; Chiara Mazzetta; M. Keech; Richard J. Hobbs; R. Fourcade; Lambertus A. Kiemeney; Chongwook Lee; Peter Boyle; John B. McKinlay
In a large epidemiological study, authors investigated the effect of LUTS on quality of life among various cultures. They showed a close association between the two, and that the effect of having moderate symptoms has a similar effect on quality of life as diabetes, hypertension or cancer, and that having severe symptoms had a similar effect as a heart attack or stroke.
Journal of the American Geriatrics Society | 2005
Fadi Badlissi; Julie E. Dunn; Carol L. Link; Julie J. Keysor; John B. McKinlay; David T. Felson
Objectives: To examine whether common musculoskeletal disorders of feet are associated with pain and foot‐related functional limitation.
The Journal of Clinical Endocrinology and Metabolism | 2008
Varant Kupelian; Frances J. Hayes; Carol L. Link; Raymond C. Rosen; John B. McKinlay
CONTEXT Low sex hormone levels have been associated with the metabolic syndrome (MetS). OBJECTIVES Our objective was to determine whether the association between sex hormone levels and MetS varies by race/ethnicity among men and to investigate the relationship of sex hormones and individual components of MetS. DESIGN We conducted a population-based observational survey. PARTICIPANTS A multistage stratified design was used to recruit a random sample of 2301 racially/ethnically diverse men age 30-79 yr. Blood samples were obtained on 1899 men. Analyses were conducted on 1885 men with complete data on total testosterone (T), free T, and SHBG. INTERVENTIONS There were no interventions. MAIN OUTCOME MEASURE MetS was defined using a modification of the Adult Treatment Panel III guidelines. The association between MetS and sex hormone levels was assessed using odds ratios and 95% confidence intervals estimated using logistic regression models. RESULTS A strong inverse association was observed, in both bivariate and multivariate analyses, between hormone levels and MetS. The odds of MetS increased about two-fold with a 1 sd decrease in hormone levels. The association between sex hormones and MetS was statistically significant across racial/ethnic groups. Although the magnitude of this association was largest among White men, racial/ethnic differences were not statistically significant. The strength of the association of sex hormones with individual components of MetS varied; stronger associations were observed with waist circumference and dyslipidemia and more modest associations with diabetes and elevated blood sugar. CONCLUSIONS A robust, dose-response relationship between sex hormone levels and odds of the metabolic syndrome in men is consistent across racial/ethnic groups.
The Journal of Urology | 2009
Varant Kupelian; Raymond C. Rosen; Carol L. Link; Kevin T. McVary; Lalitha P. Aiyer; Patrick Mollon; Steven A. Kaplan; John B. McKinlay
PURPOSE We investigated the association between lower urinary tract symptoms and chronic illness, such as heart disease, diabetes, hypertension and depression, in men and women. In addition, we determined whether a dose-response relationship exists in the association between the severity and duration of urological symptoms and major chronic illnesses. MATERIALS AND METHODS The Boston Area Community Health Survey used a multistage stratified design to recruit a random sample of 5,503 adults who were 30 to 79 years old. Urological symptoms in the American Urological Association symptom index were included in analysis. RESULTS Statistically significant associations that were consistent by gender were observed between depression and all urological symptoms. Nocturia of any degree of severity or duration was associated with heart disease in men and with diabetes in women. In men a dose-response relationship was observed for the association of symptom severity and/or the duration of urinary intermittency and frequency with heart disease, and for the association of urinary urgency with diabetes. In women a history of heart disease was associated with a weak stream and straining, while a history of hypertension was associated with urgency and a weak stream. CONCLUSIONS Results indicate a dose-response relationship in the association of the severity and duration of urological symptoms with major chronic illnesses. An association between urinary symptoms and depression was observed in men and women. In contrast, the association between lower urinary tract symptoms and heart disease, diabetes or hypertension varied by gender, suggesting different mechanisms of association in men and women.
Journal of General Internal Medicine | 2007
John B. McKinlay; Carol L. Link; Karen M. Freund; L. D. Marceau; Amy B. O'Donnell; K. L. Lutfey
BackgroundHealth services research has documented the magnitude of health care variations. Few studies focus on provider level sources of variation in clinical decision making-for example, which primary care providers are likely to follow clinical guidelines, with which types of patient.ObjectivesTo estimate: (1) the extent of primary care provider adherence to practice guidelines and the unconfounded influence of (2) patient attributes and (3) physician characteristics on adherence with clinical practice guidelines.DesignIn a factorial experiment, primary care providers were shown clinically authentic video vignettes with actors portrayed different “patients” with identical signs of coronary heart disease (CHD). Different types of providers were asked how they would manage the different “patients” with identical CHD symptoms. Measures were taken to protect external validity.ResultsAdherence to some guidelines is high (over 50% of physicians would follow a third of the recommended actions), yet there is low adherence to many of them (less than 20% would follow another third). Female patients are less likely than males to receive 4 of 5 types of physical examination (p < .03); older patients are less likely to be advised to stop smoking (p < .03). Race and SES of patients had no effect on provider adherence to guidelines. A physicians’ level of experience (age) appears to be important with certain patients.ConclusionsPhysician adherence with guidelines varies with different types of “patient” and with the length of clinical experience. With this evidence it is possible to appropriately target interventions to reduce health care variations by improving physician adherence with clinical guidelines.
Urology | 2009
Varant Kupelian; Kevin T. McVary; Michael J. Barry; Carol L. Link; Raymond C. Rosen; Lalitha P. Aiyer; Patrick Mollon; John B. McKinlay
OBJECTIVES To determine whether an association exists between C-reactive protein (CRP) levels and lower urinary tract symptoms (LUTS) as assessed by the American Urological Association Symptom Index (AUA-SI) among both men and women, and to determine the association of CRP levels with the individual urologic symptoms comprising the AUA-SI among both men and women. METHODS The Boston Area Community Health survey used a multistage stratified design to recruit a random sample of 5502 adults aged 30-79 years. Blood samples were obtained from 3752 participants. The analyses were conducted on 1898 men and 1854 women with complete data on CRP levels. Overall LUTS was defined as an AUA-SI of >or=8 (moderate to severe LUTS). The urologic symptoms comprising the AUA-SI were included in the analysis as reports of fairly often to almost always vs non/rarely/a few times. RESULTS A statistically significant association was observed between the CRP levels and overall LUTS among both men and women. The pattern of associations between the individual symptoms and CRP levels varied by sex. Nocturia and straining were associated with greater CRP levels among men, and incomplete emptying and weak stream were associated with greater CRP levels among women. CONCLUSIONS The results of this study have demonstrated an association between CRP levels and LUTS in both men and women. The dose-response relationship between increased CRP levels and an increased odds of LUTS supports the hypothesized role of inflammatory processes in the etiology of LUTS.
Medical Care | 2010
Thomas R. Konrad; Carol L. Link; Rebecca Shackelton; Lisa D. Marceau; Olaf von dem Knesebeck; Johannes Siegrist; Sara Arber; Ann Adams; John B. McKinlay
Background:As physicians are pressured to deliver an increasing number of preventive services, follow guidelines, engage in evidence-based practice, and deliver patient-centered care in managerially driven organizations, they struggle with how much control they have over their time. Methods:A secondary analysis was conducted with data from 3 parallel studies of clinical decision making in Germany, the United Kingdom, and the United States with 128 physicians per country. Physicians reported how much time they were allocated and how much time they needed for high-quality care for new patient appointments, routine consultations, and complete physicals. They also reported how much control they had over their time in the office and spending adequate time with patients. Results:German, British, and American physicians were allocated (on average) 16/11/32 minutes for a new patient appointment, 6/10/18 minutes for a routine visit, and 12/20/36 minutes for a complete physical, but felt that they needed more time. Over half of German and American physicians felt that they always or usually had control over the hours they were required to be in their office or spending sufficient time with their patients while less than half of British physicians felt this way. Conclusion:German physicians had the least time allocated and needed for most types of appointment. American physicians had the most time allocated and needed for each type of appointment. However, British physicians felt they had the least control over time in their office and spending sufficient time with patients.
BJUI | 2007
Heather J. Litman; Shalender Bhasin; Michael P. O’Leary; Carol L. Link; John B. McKinlay
To investigate whether circulating levels of sex hormones are associated with urological symptoms, using data from the Boston Area Community Health (BACH) Survey.