Michael L. Beach

Effect of viewing smoking in movies on adolescent smoking initiation: A cohort study.

BACKGROUND Exposure to smoking in movies has been linked with adolescent smoking initiation in cross-sectional studies. We undertook a prospective study to ascertain whether exposure to smoking in movies predicts smoking initiation. METHOD We assessed exposure to smoking shown in movies in 3547 adolescents, aged 10-14 years, who reported in a baseline survey that they had never tried smoking. Exposure to smoking in movies was estimated for individual respondents on the basis of the number of smoking occurrences viewed in unique samples of 50 movies, which were randomly selected from a larger sample pool of popular contemporary movies. We successfully re-contacted 2603 (73%) students 13-26 months later for a follow-up interview to determine whether they had initiated smoking. FINDINGS Overall, 10% (n=259) of students initiated smoking during the follow-up period. In the highest quartile of exposure to movie smoking, 17% (107) of students had initiated smoking, compared with only 3% (22) in the lowest quartile. After controlling for baseline characteristics, adolescents in the highest quartile of exposure to movie smoking were 2.71 (95% CI 1.73-4.25) times more likely to initiate smoking compared with those in the lowest quartile. The effect of exposure to movie smoking was stronger in adolescents with non-smoking parents than in those whose parent smoked. In this cohort, 52.2% (30.0-67.3) of smoking initiation can be attributed to exposure to smoking in movies. INTERPRETATION Our results provide strong evidence that viewing smoking in movies promotes smoking initiation among adolescents.

The incidence and nature of adverse events during pediatric sedation/anesthesia with propofol for procedures outside the operating room: a report from the Pediatric Sedation Research Consortium.

OBJECTIVE: We used a large database of prospectively collected data on pediatric sedation/anesthesia outside the operating room provided by a wide range of pediatric specialists to delineate the nature and frequency of adverse events associated with propofol-based sedation/anesthesia care. PATIENTS AND METHODS: Data were collected by the Pediatric Sedation Research Consortium, a collaborative group of institutions dedicated to improving sedation/anesthesia care for children internationally. Members prospectively enrolled consecutive patients receiving sedation or sedation/anesthesia for procedures. The primary inclusion criterion was the need for some form of sedation/anesthesia to perform a diagnostic or therapeutic procedure outside the operating room. There were no exclusion criteria. Data on demographics, primary illness, coexisting illness, procedure performed, medications used, procedure and recovery times, medication doses outcomes of anesthesia, airway interventions and adverse events were collected and reported using web-based data collection tool. For this study, we evaluated all instances where propofol was used as the primary drug in the sedation/anesthesia technique. RESULTS: Thirty-seven locations submitted data on 49,836 propofol sedation/anesthesia encounters during the study period from July 1, 2004 until September 1, 2007. There were no deaths. Cardiopulmonary resuscitation was required twice. Aspiration during sedation/anesthesia occurred four times. Less serious events were more common with O2 desaturation below 90% for more than 30 s, occurring 154 times per 10,000 sedation/anesthesia administrations. Central apnea or airway obstruction occurred 575 times per 10,000 sedation/anesthesia administrations. Stridor, laryngospasm, excessive secretions, and vomiting had frequencies of 50, 96, 341, and 49 per 10,000 encounters, respectively. Unexpected admissions (increases in levels of care required) occurred at a rate of 7.1 per 10,000 encounters. In an unadjusted analysis, the rate of pulmonary adverse events was not different for anesthesiologists versus other providers. CONCLUSIONS: We report the largest series of pediatric propofol sedation/anesthesia for procedures outside the operating room. The data indicate that propofol sedation/anesthesia is unlikely to yield serious adverse outcomes in a collection of institutions with highly motivated and organized sedation/anesthesia services. However, the safety of this practice is dependent on a system’s ability to manage less serious events. We propose that our data suggest variables for training and credentialing providers of propofol sedation/anesthesia and the system characteristics that promote safe use of this drug.

Exposure to Movie Smoking: Its Relation to Smoking Initiation Among US Adolescents

Objective. Regional studies have linked exposure to movie smoking with adolescent smoking. We examined this association in a representative US sample. Design/Methods. We conducted a random-digit-dial survey of 6522 US adolescents aged 10 to 14 years. Using previously validated methods, we estimated exposure to movie smoking, in 532 recent box-office hits, and examined its relation with adolescents having ever tried smoking a cigarette. Results. The distributions of demographics and census region in the unweighted sample were almost identical to 2000 US Census estimates, confirming representativeness. Overall, 10% of the population had tried smoking. Quartile (Q) of movie smoking exposure was significantly associated with the prevalence of smoking initiation: 0.02 of adolescents in Q1 had tried smoking; 0.06 in Q2; 0.11 in Q3; and 0.22 in Q4. This association did not differ significantly by race/ethnicity or census region. After controlling for sociodemographics, friend/sibling/parent smoking, school performance, personality characteristics, and parenting style, the adjusted odds ratio for having tried smoking were 1.7 (95% confidence interval [CI]: 1.1, 2.7) for Q2, 1.8 (95% CI: 1.2, 2.9) for Q3, and 2.6 (95% CI: 1.7, 4.1) for Q4 compared with adolescents in Q1. The covariate-adjusted attributable fraction was 0.38 (95% CI: 0.20, 0.56), suggesting that exposure to movie smoking is the primary independent risk factor for smoking initiation in US adolescents in this age group. Conclusions. Smoking in movies is a risk factor for smoking initiation among US adolescents. Limiting exposure of young adolescents to movie smoking could have important public health implications.

Insulin infusion improves neutrophil function in diabetic cardiac surgery patients.

UNLABELLED Diabetic patients are at increased risk of wound infection after major surgery, but the effect of perioperative glucose control on postoperative wound infection rates after surgery is uncertain. We tested the effect of an insulin infusion on perioperative neutrophil function in diabetic patients scheduled for coronary artery bypass surgery. Participants (n = 26) were randomly allocated to receive either aggressive insulin therapy (AIT) or standard insulin therapy (SIT) during surgery. Blood was drawn for neutrophil testing before surgery, 1 h after the completion of cardiopulmonary bypass, and on the first postoperative day. Neutrophil phagocytic activity decreased to 75% of baseline activity in the AIT group and to 47% of baseline activity in the SIT group (P < 0.05 between groups). No important differences in neutrophil antibody-dependent cell cytotoxicity were found. This study documents a potentially beneficial effect of continuous insulin therapy in diabetic patients who require major surgery. IMPLICATIONS A continuous insulin infusion and glucose control during surgery improves white cell function in diabetic patients and may increase resistance to infection after surgery.

Intraoperative Ketamine Reduces Perioperative Opiate Consumption in Opiate-dependent Patients with Chronic Back Pain Undergoing Back Surgery

Background:Ketamine is an N-methyl-d-aspartate receptor antagonist that has been shown to be useful in the reduction of acute postoperative pain and analgesic consumption in a variety of surgical interventions with variable routes of administration. Little is known regarding its efficacy in opiate-dependent patients with a history of chronic pain. We hypothesized that ketamine would reduce postoperative opiate consumption in this patient population. Methods:This was a randomized, prospective, double-blinded, and placebo-controlled trial involving opiate-dependent patients undergoing major lumbar spine surgery. Fifty-two patients in the treatment group were administered 0.5 mg/kg intravenous ketamine on induction of anesthesia, and a continuous infusion at 10 &mgr;g kg−1min−1 was begun on induction and terminated at wound closure. Fifty patients in the placebo group received saline of equivalent volume. Patients were observed for 48 h postoperatively and followed up at 6 weeks. The primary outcome was 48-h morphine consumption. Results:Total morphine consumption (morphine equivalents) was significantly reduced in the treatment group 48 h after the procedure. It was also reduced at 24 h and at 6 weeks. The average reported pain intensity was significantly reduced in the postanesthesia care unit and at 6 weeks. The groups had no differences in known ketamine- or opiate-related side effects. Conclusions:Intraoperative ketamine reduces opiate consumption in the 48-h postoperative period in opiate-dependent patients with chronic pain. Ketamine may also reduce opioid consumption and pain intensity throughout the postoperative period in this patient population. This benefit is without an increase in side effects.

Viewing tobacco use in movies: does it shape attitudes that mediate adolescent smoking?

BACKGROUND Social cognitive theory posits that children develop intentions and positive expectations (utilities) about smoking prior to initiation. These attitudes and values result, in part, from observing others modeling the behavior. This study examines, for the first time, the association between viewing tobacco use in movies and attitudes toward smoking among children who have never smoked a cigarette. DESIGN/SETTING Cross-sectional school-based survey was used among randomly selected Vermont and New Hampshire middle schools. The sample consisted of 3766 middle school students (grades 5-8). The sample was primarily white and equally distributed by gender. The primary exposure was number of movie tobacco-use occurrences viewed. We first counted occurrences of tobacco use in each of 601 recent popular motion pictures. Each student was asked to select movies they had seen from a random subset of 50 movies. Based on movies the adolescent had seen, movie tobacco-use occurrences were summed to determine exposure . The outcome was susceptibility to smoking, positive expectations, and perceptions of smoking as normative behavior for adolescents or adults. RESULTS The movies in this sample contained a median of five occurrences of tobacco use (interquartile range=1, 12). The typical adolescent never-smoker had viewed 15 of the 50 movies on his/her list. From movies adolescents reported seeing, exposure to movie tobacco-use occurrences varied widely: median=80, and interquartile range 44 to 136. The prevalence of susceptibility to smoking increased with higher categories of exposure: 16% among students who viewed 0 to 50 movie tobacco occurrences; 21% (51 to 100); 28% (101 to 150); and 36% (>150). The association remained statistically significant after controlling for gender, grade in school, school performance, school, friend, sibling and parent smoking, sensation-seeking, rebelliousness, and self-esteem. Compared with adolescents exposed to < or =50 occurrences of tobacco use, the adjusted odds ratio of susceptibility to smoking for each higher category was 1.2 (95% confidence interval 0.9, 1.5), 1.4 (1.1, 1.9), and 1.6 (1.3, 2.1), respectively. Similarly, higher exposure to tobacco use in movies significantly increased the number of positive expectations endorsed by the adolescent and the perception that most adults smoke, but not the perception that most peers smoke. CONCLUSIONS This study provides empirical evidence that viewing movie depictions of tobacco use is associated with higher receptivity to smoking prior to trying the behavior.

Ultrasound guidance improves the success rate of a perivascular axillary plexus block.

Background:  Traditional approaches to performing brachial plexus blocks via the axillary approach have varying success rates. The main objective of this study was to evaluate if a specific technique of ultrasound guidance could improve the success of axillary blocks in comparison to a two injection transarterial technique.

Fracture Risk in the U.S. Medicare Population

Using data from the 5% U.S. Medicare sample, we estimated the actuarial (life table) risk that a person aged 65 will fracture the upper or lower limbs or the pelvis, by age 75, 80, 85, and 90, taking into account the chance of dying in the interval. The actuarial risk of a 65-year old white woman sustaining a fracture by age 90 is 16% for the hip, 9% for distal forearm, 5% for proximal humerus, and 4% for ankle. Black women and white men have substantially lower risks, and the risks for black men are very low. Although hip fractures pose the single greatest risk, the risk of all other fractures combined is greater. White women have particularly high risks for all fractures, because of their longevity as well as their high fracture rates. It is important to adjust for the probability of dying when estimating risks in an elderly population.

Telephone Care Management To Improve Cancer Screening among Low-Income Women: A Randomized, Controlled Trial

Context Minority and low-income women have low screening rates for cancer. Contribution In this trial from 11 community and migrant health centers in New York City, 1413 women overdue for cancer screening were randomly assigned to receive a telephone-based intervention (delivered by 8 prevention care managers) or usual care. The intervention included information about breast, cervical, and colorectal cancer and motivational and logistical support for obtaining screening. Within 18 months, the screening rates for all 3 forms of cancer increased more with telephone support than through usual care. Implications Telephone support delivered by trained personnel can improve cancer screening rates among some minority, low-income women. The Editors Higher screening rates for breast, cervical, and colorectal cancer could reduce cancer mortality rates substantially (1-4). Current cancer screening rates are particularly disappointing among ethnic minorities and individuals with low socioeconomic status (5, 6) who often present with late-stage diagnoses (7) and have high mortality rates (8, 9). Interventions to increase cancer screening have shown limited sustainability and effect on health care disparities. A previous study showed that an office systems approach, which used a medical record flowsheet and practice teamwork, increased screening rates by 20% to 33% in small rural community practices (10); however, a similar intervention was less effective in larger urban practices (11). An office intervention in low-income settings in Florida increased mammography use and home fecal occult blood testing at 12 months (12), but rates decreased substantially after research support ended (13). Use of the telephone to support cancer screening is well documented (14-18), but interventions have typically addressed a single form of cancer screening. In some settings, telephone infrastructures to support childhood immunization (19) and patients with chronic illnesses (20-23) already exist. These infrastructures could add screening support for patients who are already enrolled, or they could expand services to others while making minimal additional demands on primary care practices (24). This paper reports the results of a randomized, controlled trial that tested the effect of centralized telephone care management on cancer screening rates among women 50 to 69 years of age who obtained care at community and migrant health centers in New York City. Methods Settings Federally qualified community and migrant health centers provide comprehensive community-oriented primary care to over 12 million patients nationally (25) and are uniquely positioned to deliver cancer screenings to underserved and minority populations. We sought participation from 15 of the 21 community and migrant health centers in New York City because of their anticipated ability to provide sufficient patients for the study and their affiliations with tertiary care facilities that conduct mammography and colorectal screening and provide follow-up services for abnormal test results. Of these 15 sites, 2 were involved in competing research projects, 2 had few patients who were likely to be eligible and therefore served as pilot sites, and the remaining 11 participated. Clinical Directors Network, a practice-based research network in New York City, was responsible for recruiting clinicians, practices, and women and for implementing the intervention and evaluation. The project was approved by the Committee for the Protection of Human Subjects at Dartmouth College, by the institutional review board at Clinical Directors Network, and by all relevant bodies responsible for reviewing research at participating community and migrant health centers. Patients Recruitment Women were approached by research assistants during routine visits to the centers or were referred by a clinician. Research assistants explained the study and obtained written informed consent from women who agreed to participate. Women were compensated

Incidence of local anesthetic systemic toxicity and postoperative neurologic symptoms associated with 12,668 ultrasound-guided nerve blocks: an analysis from a prospective clinical registry.

15 for participating in an interview whether or not they met eligibility criteria. Eligibility Eligible women were 50 to 69 years of age, were overdue for at least 1 cancer screening according to their medical records, were patients of the center for at least 6 months, and had no plans to move or change health centers within 15 months. We excluded women whose primary language was not English, Spanish, or Haitian Creole and those who were acutely ill or currently receiving cancer treatment. After we obtained consent, a research assistant reviewed patient medical records to confirm eligibility. Mammography and Papanicolaou tests that were performed within the past year were seen as evidence of breast and cervical cancer screening, respectively, whereas reports of home fecal occult blood testing within the past year, sigmoidoscopy within the past 5 years, or colonoscopy within the past 10 years were seen as evidence of colorectal cancer screening. Women whose charts indicated that they were up to date on all 3 cancer screenings were excluded. We also excluded women with unresolved abnormal screening results (for example, positive results on home fecal occult blood testing; mammography results that were categorized as American College of Radiology level 0, 4, or 5; and certain Papanicolaou test results) and notified their physicians of these findings. Design Eligible, consenting women were grouped by center, duration of enrollment at their center (12 months or >12 months), and the number of cancer screenings that they had received at recommended intervals (0 or 1 screening or 2 screenings). The New Yorkbased research assistant assigned women in each group to receive the intervention or usual care by using sealed randomization forms that were produced by Dartmouth College staff with a computer-based random-number generator. Patients were informed of their group assignment individually by telephone. At time of consent, all women received the publication titled Put Prevention into Practice Personal Health Guide (26), which contained information regarding recommended preventive services. Women who were assigned to the usual care group received a single telephone call during which trial staff answered questions about preventive care, informed women of their usual care status, advised them to obtain needed preventive care from their primary care clinician, and thanked them for their participation. Women who were assigned to the intervention group received a series of telephone support calls from a trained prevention care manager who was monitored to ensure quality and consistency. In much the same way that patient navigators guide women through the health care system during cancer treatment (27), prevention care managers facilitated the screening process for each woman by addressing barriers that prevent or delay receipt of cancer screenings. Prevention care managers received 7 hours of training, including an overview of the U.S. Preventive Services Task Force guidelines (28-30); a review of barriers to breast, cervical, and colorectal cancer screenings; and detailed explanations of the targeted screenings. Additional training included role-playing telephone calls during which the managers used the intervention scripts. Thereafter, logs were reviewed in monthly meetings to ensure fidelity to the intervention. The 8 prevention care managers were women, and most were college graduates. Their assignments were determined by patient language needs. Each care manager focused most of her work on patients from 1 or 2 sites while supporting smaller numbers of patients from other sites; contact with clinicians was limited. During the first call with a patient in the intervention group, the prevention care manager answered questions about the health guide and confirmed or updated screening dates found in the womans medical record. She next determined how ready the woman was to act on each screening (31) and worked with the woman to prioritize overdue screenings. The prevention care manager then provided motivational support, responding to each participants specific barriers to screening by using a structured script that was developed through an earlier series of interviews with women (32). Some participants had been advised during office visits with their clinicians to undergo screening; those who had not received such recommendations were sent a written recommendation from their clinician. Women who reported that they had difficulty communicating with their physician were sent brightly colored patient activation cards that listed overdue screenings, which they could share with their clinician at their next appointment. Care managers also scheduled appointments, provided accurate information about screenings over the telephone and by mail, prompted women with appointment reminder calls and letters, provided directions to screening facilities, and helped women to find a means of transportation to appointments. During subsequent calls, which continued for 18 months or until the patient was up to date for all screenings, the prevention care manager asked about future appointments and screenings the patient had received since the last call. The manager then responded to new and ongoing barriers for remaining overdue screenings. Only clinicians, not care managers, were responsible for ordering screenings at all but 2 centers, which permitted care managers to mail home fecal occult blood test kits directly to women who were willing to perform this test. Evaluation Descriptive data on the centers were gathered from surveys that were completed by clinicians and clinical directors. Outcome data were based on reviews of patient medical records, which were conducted at least 3 months after the intervention period to allow for the time lag between receipt of a service and the availability of documentation. Data included patient demographic characteristics, screening dates and results, chronic il