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Kenneth P Offord

Publications and source records attributed to Kenneth P Offord.

At least 37 records · Page 2Linked to original sources
PubMed2004

Preliminary findings on the development of a measure of supportive behaviors provided by support persons to help someone stop smoking.

Although studies indicate a positive association between social support and smoking cessation, clinic-based interventions to increase support for stopping smoking have had limited success. Prior studies have primarily assessed the smokers' perceptions of support received with little attention paid to the support person's reports of support provided. To address this limitation, this study reports on the development and testing of the 22-item Support Interview, a process measure designed to assess supportive behaviors provided to a smoker. The rationale for the conceptual underpinning of the measure and item selection is provided. Preliminary psychometric properties of the instrument (i.e., internal consistency reliability, item-change scores, factor structure) are described. Clinical and public health implications for the use of measures of support provided for behavior change are discussed.

Adult↗
PubMed2004

Anesthesiologists, general surgeons, and tobacco interventions in the perioperative period.

Surgery presents an opportunity for interventions in cigarette smokers that will facilitate abstinence from tobacco. However, little attention has been paid to the role of anesthesiologists and surgeons in addressing tobacco use. To determine the practices and attitudes of these physicians regarding this issue, we sent a postal mail survey to a national random sampling of anesthesiologists and general surgeons engaged in active practice within the United States (1000 in each group). Response rates were 33% and 31% for anesthesiologists and surgeons, respectively. More than 90% of both groups almost always ask their patients about tobacco use, and almost all respondents believed that surgical patients should maintain abstinence after surgery. Most believed that it was their responsibility to advise their patients to quit smoking, but only 30% of anesthesiologists and 58% of surgeons routinely do so. Nonetheless, approximately 70% of both groups would be willing to spend an extra 5 min before surgery to help their patients quit. Barriers to intervention included a lack of training regarding intervention techniques, a perceived lack of effective interventions, and insufficient time to intervene. Intervention opportunities are not exploited consistently in the surgical population; educational efforts directed at physicians in surgical specialties are indicated.

Adult↗
PubMed2004

Increased faculty presence on inpatient teaching services.

OBJECTIVES: To determine whether the level of presence of faculty in the afternoon or evening influences residents' perception of learning, "autonomy," or satisfaction, and if so whether the effect is positive or negative. SUBJECTS AND METHODS: A survey of internal medicine residents was conducted from January 1 through June 30, 1999. Primary outcome was residents' satisfaction and its relationship to the degree of (resident-observed) faculty presence. RESULTS: A total of 156 (86.7%) of the 180 surveys distributed were returned. Residents rated the individual faculty members' frequency of afternoon or evening presence as "most/all of the time" (47%), "occasionally" (32%), or "never/rarely" (21%). Increased faculty presence was positively associated with higher resident "satisfaction with faculty" (P < .001), "educational value of time spent with the faculty member" (P = .001), "team dynamics" (P = .002), "(quality of) overall medical care provided" (P = .03), and "sufficient autonomy" (P = .04). Residents were less likely to report concerns (difficulties) with teaching (P < .001) and efficiency (P = .008) of faculty whose level of presence was increased. CONCLUSION: Contrary to some concerns expressed, increased faculty presence is associated with higher resident satisfaction and a more favorable learning experience.

Attitude of Health Personnel↗
PubMed2003

Retinal microvascular abnormalities in patients treated with external radiation for graves ophthalmopathy.

BACKGROUND: A prospective study was conducted to determine if external ionizing radiation could favorably influence the orbital manifestations of Graves ophthalmopathy. Diabetes and untreated systemic hypertension were exclusion criteria. Radiation was directed to the orbits of 42 affected patients using 0.2 rad (20 Gy) delivered in 10 doses of 0.02 rad (2 Gy). Patients were periodically examined during a 3-year interval. OBJECTIVE: To report retinal microvascular abnormalities observed in our study cohort. METHODS: Fundus findings documented with ophthalmoscopy, stereoscopic color photography, and stereoscopic fluorescein angiography prior to radiation were compared with similarly documented findings approximately 3 years following radiation. RESULTS: Prior to orbital radiation, retinal microvascular abnormalities were identified in 2 patients. The abnormalities were present bilaterally in one patient and unilaterally in the other. During the course of the study, microvascular abnormalities developed de novo in the unaffected retina of the latter patient while the retinopathy in the fellow eye progressed. Retinal microvascular abnormalities and their sequelae developed de novo in both eyes in 2 more patients. In addition to the radiation, other confounding factors known to be associated with microvascular retinopathy (uveitis, inadequately controlled systemic hypertension, and borderline blood glucose levels) were identified among the 3 patients whose eyes developed new retinal microvascular abnormalities. CONCLUSIONS: Whether the retinal microvascular abnormalities observed in these patients were caused or aggravated by external beam irradiation cannot be precisely ascertained. However, the observed progression and de novo development of retinal microvascular abnormalities within 3 years of orbital radiation raise concern that 0.2 rad (20 Gy) delivered to the orbit in 10 doses of 0.02 rad (2 Gy) may aggravate existing retinal microvascular abnormalities or cause radiation retinopathy in some patients with Graves disease. These findings and the failure of external beam radiation with 0.2 rad (2000 cGy) to favorably affect Graves ophthalmopathy, as demonstrated in a previous study, have led us to discourage further treatment of Graves ophthalmopathy with radiation.

Adult↗
PubMed2003

Increased risk associated with pulmonary artery catheterization in the medical intensive care unit.

PURPOSE: To determine whether the frequency of use of a pulmonary artery catheter (PAC) was declining over a 5-year period in a medical intensive care unit (ICU), and to assess whether mortality was higher in patients in whom a PAC was used on the day of ICU admission compared with matched controls. METHODS: Observational, retrospective, matched-set study using prospectively collected Acute Pysiology, Age and Chronic Health Evaluation (APACHE) III data during a 5-year period, from 1995 to 2000, at a 15-bed medical ICU in an academic referral center. A total of 360 patients, 202 men and 158 women, in whom a PAC was placed on the first ICU day, were compared with 690 controls without a PAC, matched by primary diagnosis group and APACHE III-predicted hospital mortality. RESULTS: A PAC was used during the first day in 7.7% of ICU admissions (yearly range, 5.7% to 9.1%) and did not change significantly during the study period. A total of 187 study patients (27.0%) without a PAC and 132 (36.7%) with a PAC died during their hospital stay. PAC use was a significant risk factor for hospital death from a univariate analysis (odds ratio = 1.5; 95% confidence interval (CI), 1.1-2.1; P =.006). From multivariate analysis, the use of a pulmonary artery catheter was a significant risk factor for hospital death after adjusting for age, date of ICU admission, and predicted hospital mortality (odds ratio = 1.5; 95% CI; 1.1-2.0; P =.016). CONCLUSION: PAC use on the day of admission to a medical ICU was associated with an increased risk for hospital death.

APACHE↗
PubMed2003

Predictors of 6-month tobacco abstinence among 1224 cigarette smokers treated for nicotine dependence.

This study examined baseline characteristics associated with abstinence from tobacco 6 months after treatment for nicotine dependence. A total of 1224 cigarette smokers (619 females, 605 males) receiving clinical services for treatment of nicotine dependence between January 1, 1995 and June 30, 1997 were studied. The intervention involves a 45-min consultation with a nicotine dependence counselor. A treatment plan individualized to the patient's needs is then developed. The main outcome measure was the self-reported 7-day point prevalence abstinence from tobacco obtained by telephone interview 6-months after the consultation. A bootstrap resampling methodology for predictor variable selection was used to identify a set of multivariate predictors of 6-month tobacco abstinence. Five variables were multivariately associated with tobacco abstinence: male gender, no current psychiatric diagnosis, higher stage of change, longest duration of previous abstinence from tobacco of <1 or > or =30 days, and Fagerström Test for Nicotine Dependence (FTND) score of < or =5. Assessment of these variables may be useful clinically by assisting health care providers in tailoring nicotine dependence interventions to enhance outcomes.

Adolescent↗
PubMed2003

Assessing the unmet information, support and care delivery needs of men with prostate cancer.

This study identified the key Unmet Needs of men with localized prostate cancer. A series of Nominal Groups were used to identify needs, from which a 135-item survey was developed to assess both the Importance and Unmet Need of each item. An Importance-Weighted Unmet Need score was calculated for each item, incorporating both the Importance and the degree to which the need was unmet. Surveys (n=500) were distributed in four geographically distinct areas, with a response rate of 46%. Respondents were 90% Caucasian, 80% married, with a mean age of 66 years, and mean education of 14 years. Care delivery needs were most important and least unmet, while Support needs were least important and most unmet. However, when degree to which needs were unmet was weighted by Importance, information needs had the highest Importance-Weighted Unmet Need scores. The greatest Unmet Needs for information were in knowledge of recurrence issues and in side effects of the illness and its treatment.

Aged↗
PubMed2003

Colorectal cancer screening with CT colonography, colonoscopy, and double-contrast barium enema examination: prospective assessment of patient perceptions and preferences.

PURPOSE: To prospectively assess and compare perceptions of and preferences for computed tomographic (CT) colonography, colonoscopy, and double-contrast barium enema examination (DCBE) by asymptomatic patients undergoing colorectal cancer screening. MATERIALS AND METHODS: A total of 696 asymptomatic patients at higher-than-average risk undergoing colorectal cancer screening were consecutively recruited to undergo both CT colonography and colonoscopy (group 1), and a like group of 617 patients was separately recruited to undergo both CT colonography and DCBE (group 2). Standard bowel preparations were different between the groups undergoing colonoscopy and DCBE. Each patient completed a questionnaire that assessed preparation inconvenience and discomfort, examination discomfort, willingness to repeat examinations, and examination preference. Survey results were compared for significance by using the Wilcoxon rank sum or chi2 test. RESULTS: The majority of patients considered the preparation to be uncomfortable (group 1, 460 of 515 [89%]; group 2, 482 of 538 [90%]) and inconvenient (group 1, 393 of 502 [78%]; group 2, 427 of 527 [81%]). Reported discomfort was similar at CT colonography and colonoscopy (P =.63) but was less at CT colonography than at DCBE (P <.001). Patients experienced significantly less discomfort than expected at both CT colonography and colonoscopy but not at DCBE. Patients' willingness to undergo frequent rescreening was significantly greater for CT colonography than for either colonoscopy or DCBE. The acceptable time interval between screenings was significantly shorter for all examinations if the bowel preparation could be avoided. Overall, patients preferred CT colonography to colonoscopy (group 1, 72.3% vs 5.1%; P <.001) or to DCBE (group 2, 97.0% vs 0.4%; P <.001). CONCLUSION: Patients undergoing colorectal cancer screening prefer CT colonography to both colonoscopy and DCBE. The majority of patients experience discomfort and inconvenience with cathartic bowel preparation.

Adult↗
PubMed2003

Differences in adolescent smoker and nonsmoker perceptions of strategies that would help an adolescent quit smoking.

This study assessed adolescent smoker and nonsmoker perceptions of strategies that would help an adolescent smoker in his or her attempt to stop smoking. Surveys were distributed primarily in the schools at 4 geographic and ethnically diverse study sites. Respondents were 965 adolescents (49% female; 46% minority). Current smokers (n = 232) were asked to rate the extent to which they agreed or disagreed that supportive behaviors of friends and family, quitting strategies, or learning about quitting strategies would be helpful if they decided to quit. Nonsmokers (n = 733) were asked to indicate the degree to which they agreed or disagreed that these behaviors and strategies would be helpful if a friend decided to quit. Responses to each of the 33 attitude items were rated on a 5-point scale ranging from strongly disagree to strongly agree. Marked differences were observed between smokers and nonsmokers in the level of agreement on each item. In general, smokers reported far less enthusiasm for cessation strategies than nonsmokers. After adjusting for gender, age, and other covariates, smoking status was the strongest independent predictor of the number of items endorsed as agree or strongly agree. The results have implications for the design of peer-based and other interventions for adolescent smokers.

Adolescent↗
PubMed2003

Association between scores on the SAAST (a direct measure of alcohol misuse) and CAL scale (an indirect measure of alcohol misuse) among medical patients admitted for treatment of alcohol dependence.

Patients with medical or social problems related to alcohol abuse or alcohol dependence frequently are seen in the health care delivery system. Direct and indirect screening methods are available, but contemporary data describing their combined effectiveness have not been reported. We determined the sensitivity of (a) an empirically derived, item-weighted, relatively "indirect" screening measure for alcohol misuse (the Common, Alcohol, Logistic [CAL] scale for the MMPI), (b) a "direct" approach to screening for alcohol misuse (the Self-Administered Alcohol Screening Test [SAAST]), and (c) their combined application. We obtained the responses to both measures from an archival sample of 361 medical patients (89 women, 272 men) who had been diagnosed with alcohol dependence by DSM-III-R criteria. The CAL scale and the SAAST both demonstrated high sensitivity. However, results favored the simultaneous use of a direct-in this study, the SAAST-and an indirect-in this study, the CAL scale-screening procedure.

Adult↗
PubMed2003

The effect of nicotine patch therapy on depression in nonsmokers: a preliminary study.

Prior uncontrolled studies of nonsmokers with major depressive disorder (MDD) indicate rapid reduction in depressive symptoms with nicotine patch therapy. This randomized, double-blind, placebo-controlled pilot study examined the effect of nicotine patch therapy on depressive symptoms in non-medicated nonsmokers with current MDD. Due to recruitment difficulties, only 7 were enrolled and of these 6 (5 females, 1 male) completed the study. Participants received either placebo (n = 4) or active (n = 2) patch therapy for 8 days. They completed daily clinic visits during patch therapy and a final visit on Day 12. Depressive symptoms were assessed using the Hamilton Rating Scale for Depression (HRSD). The mean change in HRSD scores of all participants decreased (p = 0.021) from baseline by Day 1 of patch use. Similar decreases in HRSD scores were observed for placebo and active patch groups. Among the placebo participants, the mean HRSD score decreased (p = 0.038) by Day 2. The study needs replication with a larger sample and utilizing novel recruitment strategies.

Administration, Cutaneous↗
PubMed2003

Provider satisfaction in clinical encounters with ethnic immigrant patients.

OBJECTIVE: To determine whether physicians' satisfaction in clinical encounters with ethnic immigrant patients differs from satisfaction in clinical encounters with white patients in the local community. PATIENTS AND METHODS: Postvisit assessments from primary care physicians were collected for matched pairs of ethnic and control patients at the Mayo Clinic in Rochester, Minn, during a 10-week study (April 2-June 9, 2001). Ethnic patients were defined as first-generation Somalian, Cambodian, and Hispanic immigrants. Control patients were American-born white patients who were seen by the same physician and matched to the ethnic patients in age, sex, and type of visit. T tests and Hotelling T2 tests were used to analyze differences in physician responses between groups; regression analysis was used to identify the relationship between physicians' satisfaction and ethnicity in the presence of covariates. RESULTS: Physicians were considerably less satisfied with ethnic patient visits compared with control patient visits. Larger differences in satisfaction were reported in the areas of patient efforts with disease prevention and management of chronic diseases. Smaller differences in satisfaction were reported for issues related to communication and cultural beliefs and practices. These differences persisted after controlling for patient demographics, physician, and visit characteristics. CONCLUSIONS: Patients' ethnicity affects physician satisfaction with clinical encounters, particularly in the delivery of preventive care and chronic disease management.

Adult↗
PubMed2002

The aftermath of orbital radiotherapy for graves' ophthalmopathy.

OBJECTIVE: To determine whether long-term improvement could be observed after orbital radiotherapy for Graves' disease; in addition, to evaluate ancillary treatments needed for those who have received radiotherapy, to search for late-emerging adverse consequences of radiotherapy, and to relate orbital changes to serum levels of thyroid-stimulating immunoglobulin (TSI). DESIGN: Three-year follow-up of noncomparative interventional case series. PARTICIPANTS: Forty-two patients. INTERVENTION: All patients had received orbital radiotherapy within 6 months of study entry. Twelve months after study entry, patients were free to select any additional treatment for their ophthalmopathy. MAIN OUTCOME MEASURES: Need for surgery, steroid therapy, volume of extraocular muscles and fat, proptosis, area of diplopia fields and range of extraocular muscle motion, volume changes after decompression and correlations of eye findings with serum TSI levels, retinal status. RESULTS: Half of the patients elected to have a surgical procedure on their eyes or orbits. Among patients who were not decompressed, we found only slight improvement in some of the main outcome measures. TSI did not positively correlate with baseline status or with any observed change in major outcome measures. After orbital decompression, the volumes of both muscle and fat increase, but bony orbital volume increases more and proptosis diminishes. Retinal microvascular abnormalities consistent with radiation retinopathy developed de novo in five eyes of three patients within 3 years of radiation therapy. CONCLUSIONS: In this 3-year uncontrolled follow-up phase, limited evidence for a clinically significant improvement was observed, which may be the result of treatment or of natural remission. In either case, the changes are of little clinical significance. Because it is neither effective nor innocuous, radiotherapy does not seem to be indicated for treatment of mild to moderate ophthalmopathy.

Adult↗
PubMed2002

Optimism-pessimism assessed in the 1960s and self-reported health status 30 years later.

OBJECTIVE: To study the association between explanatory style, using scores from the Optimism-Pessimism (PSM) scale of the Minnesota Multiphasic Personality Inventory (MMPI), and self-reported health status, using scores from the 36-Item Short-Form Health Survey (SF-36). PATIENTS AND METHODS: A total of 447 patients who completed the MMPI between 1962 and 1965 as self-referred general medical outpatients and also completed the SF-36 thirty years later compose the current study sample. The associations between the scores on the SF-36 and the MMPI PSM scale were evaluated by analysis of variance and linear regression analysis. RESULTS: Of 447 patients, 101 were classified as optimistic, 272 as mixed, and 74 as pessimistic. Scores on all 8 health concept domains from the SF-36 were significantly poorer in the pessimistic group than in both the optimistic and the mixed group. CONCLUSION: A pessimistic explanatory style, reflected by higher PSM scale scores, was significantly associated with a self-report of poorer physical and mental functioning on the SF-36 30 years later.

Adolescent↗
PubMedDate not supplied

Bupropion for pharmacologic relapse prevention to smoking: predictors of outcome.

The aim of this study was to identify predictors of successful relapse prevention in smokers receiving long-term sustained-release bupropion. Smokers (N= 784) who were interested in stopping smoking were enrolled in a 7-week, open-label bupropion phase. Abstinent subjects at the end of treatment and eligible to proceed (N= 429) were randomized to active bupropion or placebo through Week 52 and then followed for an additional year. The best overall predictor of less relapse to smoking was assignment to active bupropion. In aggregate, the results indicate that bupropion can be prescribed to diverse populations of smokers with expected comparable results. There was a medication effect that was independent of any predictor except older age and those who gained no or minimal weight during the open-label phase. Predictors of successful relapse prevention included lower baseline smoking rates, a Fagerström Tolerance Questionnaire score of < 6, and initiation of smoking at an older age. These data should encourage others to perform similar pharmacologic relapse prevention studies with this or other pharmacotherapies.

Adult↗
PubMedDate not supplied

Validation of the revised Self-Administered Alcohol Screening Test (SAAST-R).

This study examined the sensitivity and specificity of the revised Self-Administered Alcohol Screening Test (SAAST-R)1 among adult outpatients evaluated at community addictions and psychiatry and psychology clinics. A total of 417 adults (mean +/- SD age of 41.4 +/- 15.0 years, 52% female, 91% Caucasian) completed the 36-item SAAST-R prior to their evaluation. Based on the clinician's documentation of the patient's alcohol use, two criterion groups were established: one composed of subjects classified as having no alcohol problems (n = 214), and one with alcohol problems (n = 203). The SAAST-R was found to have high internal consistency reliability (Cronbach's alpha = 0.96), sensitivity (90%), and specificity (82%) for differentiating outpatients with and without alcohol problems, respectively, using a cut point of >or=4 to indicate risk for alcohol-related problems. The SAAST-R was found to have good sensitivity and specificity among both males and females.

Academic Medical Centers↗
PubMedDate not supplied

A prospective, case-control study of tobacco dependence in thromboangiitis obliterans (Buerger's Disease).

Thromboangiitis obliterans (TAO) is often cited as an extreme phenotype of vasculopathy and tobacco dependence. Although tobacco exposure is essential to progression of arterial ischemia in TAO, expert opinion differs regarding the degree of tobacco dependence in this population. The authors designed a prospective, case-control study to test the hypothesis that subjects with TAO have a greater degree of tobacco dependence than control subjects with coronary atherosclerosis (coronary artery disease [CAD]) do. Subjects with TAO (n = 218, confirmed by angiography, biopsy, or noninvasive arterial testing) or CAD (n = 343, diagnosed by coronary angiography) were mailed a standardized questionnaire regarding tobacco use, to which 103 and 273 responded, respectively. The degree of tobacco dependence in each group was ascertained by several methods, including the Fagerström Test for Nicotine Dependence Questionnaire. The TAO group was younger at index date (year of first diagnosis for TAO patients, year of percutaneous transluminal coronary angioplasty [PTCA] for CAD patients) (TAO 37.6+/-9.0 vs CAD 43.3+/-4.9 yr, p < 0.0001), but the groups did not differ in age at first tobacco exposure (TAO 16.7+/-3.1 vs CAD 17.3+/-4.2 yr, p = 0.67), current tobacco use at time of survey (TAO 54% vs CAD 46%, p = 0.17), or Fagerström score (TAO 4.7+/-2.3 vs CAD 5.1+/-2.3, p = 0.24). Kaplan-Meier curves showed no significant difference in time to topping tobacco use after first diagnosis (p = 0.076). TAO subjects smoked fewer cigarettes per day than CAD subjects (TAO 22.3+/-10.7 vs CAD 27.7+/-15.3 cigarettes/day, p = 0.003). Among current smokers (n = 170), TAO subjects also smoked fewer cigarettes/day (20.2+/-8.2 vs 24.6+/-12.7, p = 0.03), and were more likely to have made a serious attempt to stop (97% vs 90%, p = 0.03). In contrast to case reports of extreme tobacco dependence in the TAO population, the degree of tobacco dependence in subjects with TAO is similar to that in subjects with CAD.

Adult↗