Nehama Goldberger

Body-Mass Index in 2.3 Million Adolescents and Cardiovascular Death in Adulthood

BACKGROUND In light of the worldwide increase in childhood obesity, we examined the association between body-mass index (BMI) in late adolescence and death from cardiovascular causes in adulthood. METHODS We grouped data on BMI, as measured from 1967 through 2010 in 2.3 million Israeli adolescents (mean age, 17.3±0.4 years), according to age- and sex-specific percentiles from the U.S. Centers for Disease Control and Prevention. Primary outcomes were the number of deaths attributed to coronary heart disease, stroke, sudden death from an unknown cause, or a combination of all three categories (total cardiovascular causes) by mid-2011. Cox proportional-hazards models were used. RESULTS During 42,297,007 person-years of follow-up, 2918 of 32,127 deaths (9.1%) were from cardiovascular causes, including 1497 from coronary heart disease, 528 from stroke, and 893 from sudden death. On multivariable analysis, there was a graded increase in the risk of death from cardiovascular causes and all causes that started among participants in the group that was in the 50th to 74th percentiles of BMI (i.e., within the accepted normal range). Hazard ratios in the obese group (≥95th percentile for BMI), as compared with the reference group in the 5th to 24th percentiles, were 4.9 (95% confidence interval [CI], 3.9 to 6.1) for death from coronary heart disease, 2.6 (95% CI, 1.7 to 4.1) for death from stroke, 2.1 (95% CI, 1.5 to 2.9) for sudden death, and 3.5 (95% CI, 2.9 to 4.1) for death from total cardiovascular causes, after adjustment for sex, age, birth year, sociodemographic characteristics, and height. Hazard ratios for death from cardiovascular causes in the same percentile groups increased from 2.0 (95% CI, 1.1 to 3.9) during follow-up for 0 to 10 years to 4.1 (95% CI, 3.1 to 5.4) during follow-up for 30 to 40 years; during both periods, hazard ratios were consistently high for death from coronary heart disease. Findings persisted in extensive sensitivity analyses. CONCLUSIONS A BMI in the 50th to 74th percentiles, within the accepted normal range, during adolescence was associated with increased cardiovascular and all-cause mortality during 40 years of follow-up. Overweight and obesity were strongly associated with increased cardiovascular mortality in adulthood. (Funded by the Environment and Health Fund.).

Energy intake and leukocyte telomere length in young adults

BACKGROUND Dietary energy restriction in mammals, particularly at a young age, extends the life span. Leukocyte telomere length (LTL) is thought to be a bioindicator of aging in humans. High n-6 (omega-6) PUFA intake may accelerate LTL attrition. OBJECTIVE We determined whether lower energy and higher PUFA intakes in young adulthood are associated with shorter LTL in cross-sectional and longitudinal analyses. DESIGN In a longitudinal observational study (405 men, 204 women), diet was determined at baseline by a semiquantitative food-frequency questionnaire, and LTL was determined by Southern blots at mean ages of 30.1 y (baseline) and 43.2 y (follow-up). Spearman correlations and multivariable linear regression were used. RESULTS Baseline energy intake was inversely associated with follow-up LTL in men (standardized β = -0.171, P = 0.0005) but not in women (P = 0.039 for sex interaction). The difference in men between the highest and lowest quintiles of energy was 244 base pairs (bp) (95% CI: 59, 429 bp) and between extreme quintiles of LTL was 440 kcal (95% CI: 180, 700 kcal). Multivariable adjustment modestly attenuated the association (β = -0.157, P = 0.002). Inverse associations, which were noted for all macronutrients, were strongest for the unsaturated fatty acids. In multivariable models including energy and the macronutrients (as percentage of energy), the significant inverse energy-LTL association (but not the PUFA-LTL association) persisted. The energy-LTL association was restricted to never smokers (standardized β = -0.259, P = 0.0008; P = 0.050 for the smoking × calorie interaction). CONCLUSIONS The inverse calorie intake-LTL association is consistent with trial data showing beneficial effects of calorie restriction on aging biomarkers. Further exploration of energy intake and LTL dynamics in the young is needed.

Mortality and causes of death among users of methadone maintenance treatment in Israel, 1999–2008

OBJECTIVES To determine all-cause and specific-causes mortality, in the years 1999-2008, among opioid-dependent users treated at methadone maintenance treatment (MMT) clinics in Israel and to compare the obtained results with data from relevant studies worldwide. METHOD The records of patients treated at MMT units were linked to the nationwide database of causes of death. Information about the Israeli general population from the Central Bureau of Statistics was used for comparison to match sex and age to the cohort under study. Crude mortality rates (CMRs) per 100 persons per year (PY) and standardized mortality ratios (SMRs) with 95% confidence intervals (CIs) were calculated. RESULTS The overall CMR for MMT users was 1.49/100 PY (CI 1.40-1.59) and was not associated with gender, age at entering MMT, ethnicity, and immigrant status. The leading causes of mortality were sudden/undefined death (0.31/100 PY, CI 0.26-0.35), overdose (0.22/100 PY, CI 0.17-0.27), and cancer (0.15/100 PY, CI 0.12-0.18). The MMT users were 12.2 times more likely to die from all causes than people from the general population. Overall, our estimates were comparable with the figures pooled from relevant studies. CONCLUSIONS The results suggest that the excess mortality of MMT users is associated with an increased morbidity, which alone or in combination with service-related risks, lead to worse outcomes.

Leukocyte telomere length and coronary artery calcification in Palestinians

OBJECTIVE Shorter leukocyte telomere length (LTL) is associated with higher incidence of coronary heart disease (CHD) and increased mortality. We examined the association of LTL with coronary artery calcification (CAC), which reflects the cumulative burden of coronary atherosclerosis, in an urban Arab sample of Palestinians, a population at high risk of CHD. METHODS Using a cross-sectional design, a random sample of East Jerusalem residents, comprising 250 men aged 45-77 and women aged 55-76 and free of CHD or past stroke, was drawn from the Israel national population register. LTL was measured by Southern blots. CAC was determined by 16-slice multidetector helical CT scanning using Agatston scoring. We applied multivariable logistic modeling to examine the association between sex-specific tertiles of LTL and CAC (comparing scores >100 vs. <100, and the upper third vs. the lower 2 thirds), controlling for age, sex, education and coronary risk factors. RESULTS CAC, evident in 65% of men and 52% of women, was strongly associated with age (sex-adjusted Spearmans rho 0.495). The multivariable-adjusted odds ratios for CAC >100 (found in 30% of men and 29% of women) were 2.92 (95% CI 1.28-6.68) and 2.29 (0.99-5.30) for the lower and mid-tertiles of LTL vs. the upper tertile, respectively (Ptrend = 0.008). Findings were similar for CAC scores in the upper tertile (Ptrend = 0.006), and persisted after the exclusion of patients with diabetes or receiving statins. CONCLUSIONS Shorter LTL was associated with a greater prevalence of asymptomatic coronary atherosclerosis in an urban Arab population-based sample. Mechanisms underlying this association should be sought.

BMI at Age 17 Years and Diabetes Mortality in Midlife: A Nationwide Cohort of 2.3 Million Adolescents

OBJECTIVE The sequelae of increasing childhood obesity are of major concern. We assessed the association of BMI in late adolescence with diabetes mortality in midlife. RESEARCH DESIGN AND METHODS The BMI values of 2,294,139 Israeli adolescents (age 17.4 ± 0.3 years), measured between 1967 and 2010, were grouped by U.S. Centers for Disease Control and Prevention age/sex percentiles and by ordinary BMI values. The outcome, obtained by linkage with official national records, was death attributed to diabetes mellitus (DM) as the underlying cause. Cox proportional hazards models were applied. RESULTS During 42,297,007 person-years of follow-up (median, 18.4 years; range <1–44 years) there were 481 deaths from DM (mean age at death, 50.6 ± 6.6 years). There was a graded increase in DM mortality evident from the 25th to the 49th BMI percentile group onward and from a BMI of 20.0–22.4 kg/m2 onward. Overweight (85th to 94th percentiles) and obesity (the 95th percentile or higher), compared with the 5th to 24th percentiles, were associated with hazard ratios (HRs) of 8.0 (95% CI 5.7–11.3) and 17.2 (11.9–24.8) for DM mortality, respectively, after adjusting for sex, age, birth year, height, and sociodemographic variables. The HR for the 50th through 74th percentiles was 1.6 (95% CI 1.1–2.3). Findings persisted in a series of sensitivity analyses. The estimated population-attributable fraction for DM mortality, 31.2% (95% CI 26.6–36.1%) for the 1967–1977 prevalence of overweight and obesity at age 17, rose to a projected 52.1% (95% CI 46.4–57.4%) for the 2012–2014 prevalence. CONCLUSIONS Adolescent BMI, including values within the currently accepted “normal” range, strongly predicts DM mortality up to the seventh decade. The increasing prevalence of childhood and adolescent overweight and obesity points to a substantially increased future adult DM burden.

Suicidal behavior among Muslim Arabs in Israel

PurposeCountries with Muslim populations report relatively lower rates of suicide. However, authors have noted methodological flaws in the data. This study examined reliable rates of completed suicide, suicide ideation, planning and attempts among Muslims as compared to Jews in Israel.MethodsFor completed suicide, information was extracted from death certificates (2003–2007); the National Emergency Room Admissions Database (NERAD) provided data on suicide attempts (2003–2007); and the Israel National Health Survey (INHS) (2003–2004) was used for self reports on lifetime suicide ideation, planning and attempts.ResultsCompleted suicide rates among Muslim-Israelis (3.0 per 100,000) were lower compared to Jewish-Israelis (8.2 per 100,000). Based on NERAD, attempted suicide rates among men were lower for Muslims compared to Jews, while among women aged 15–44 no differences were found. In the INHS, the rate of self-reported lifetime suicide attempts was significantly higher among Muslims (2.8%) compared to Jews (1.2%), while lifetime prevalence rates of suicide ideation (6.6%) and planning (2.1%) in Muslims did not differ from Jews (5.2 and 1.9%, respectively).ConclusionsConceivably, the lower rate of completed suicide among Muslim-Israelis might be explained by the strenuous proscription of suicide by the Koran. However, its extension to suicide attempts is equivocal: attempts were higher among Muslims than among Jews according to self-reports but lower in the NERAD records. Social pressures exerted on the reporting agents may bias the diagnosis of self-harm in both the latter data source and in the death certificates.

Mortality rates in Israel from causes amenable to health care, regional and international comparison

BackgroundMortality from causes amenable to health care is a valuable indicator of quality of the health care system, which can be used to assess inter-regional differences and trends over time. This study investigates these mortality rates in Israel over time, and compares inter-regional and international rates in recent years.ResultsAge-adjusted amenable mortality rates have been decreasing steadily in Israel, by 31% for males and 28% for females between 1998–2000 and 2007–2009. Amenable mortality was lower in the center of the country than in the Northern, Southern, and Haifa districts. The proportion of mortality from circulatory diseases was highest in the North and Haifa districts and from cancer in the Tel-Aviv and Central districts. A higher proportion of infectious diseases was seen in the Southern district.In comparison with amenable mortality rates in 20 European countries, Israel ranked 8th lowest for males and 12th lowest for females, in 2008. The rate was lower than in Britain, Ireland, and Portugal; lower than in Germany, Spain, Austria, and Finland for males; and higher than France, Netherlands, Sweden, Norway, and Italy. But Israel ranked higher in the decrease in amenable mortality rates between 2001 and 2007 for females than males in a 19 country comparison. Genitourinary diseases were a larger component in Israel than other countries and circulatory diseases were smaller.ConclusionThe indicator of amenable mortality shows improvement in health outcomes over the years, but continuing improvement is needed in health care and education, in particular in the periphery of Israel and for females.

Female physicians: trends and likely impacts on healthcare in Israel

BackgroundFemale physicians have become an increasing proportion of the medical workforce in Israel. This study investigates this trend and discusses its likely impact on the quantity and quality of medical care available.MethodData on licensed physicians and new licenses issued to physicians were taken from a Ministry of Health database, and analyzed by gender, age, academic origin (Israeli graduates, immigrants, Israeli-born who studied abroad), and specialty for the years 1999–2011.Data on employed physicians, their population group, and work hours were taken from the Central Bureau of Statistics (CBS) annual Labour Force Survey for the years 2009–2011.ResultsThe proportion of women amongst physicians aged under 65 rose from 38% in 1999 to 42% in 2011, and was even higher for younger physicians. The highest proportion of females is found amongst new immigrant physicians who studied abroad. The corresponding proportion has been rising steadily amongst Israeli-educated physicians, and is lowest amongst Israeli-born physicians who studied abroad.Similarly, among newly licensed physicians, the proportion of females has traditionally been highest among immigrants who studied abroad and lowest among Israeli-born graduates who studied abroad. Among newly-licensed physicians who studied in Israel, the proportion of females has historically been intermediate between the other two groups, but it has recently risen to 54% and now parallels the proportion of females among immigrants who studied abroad. In recent years, the mix of academic origins among newly licensed physicians has changed dramatically, with important implications for the proportion of women among newly licensed physicians.The highest percentage of females was found in family medicine followed by oncology, pediatrics and psychiatry. The greatest increase over the years in this percentage was for gynecology and internal medicine.Female physicians worked shorter hours than males, particularly at younger ages. The proportion of females among employed Arab physicians is much lower than among Jewish physicians.ConclusionsThe proportion of female physicians has been steadily rising, although in recent years the increase has leveled off. This has been due, in part, to the decline in the flow of immigrant physicians and the increase in the number of Israelis studying abroad. Future developments in medical education options and immigration will determine whether their proportion will continue rising. Planning for future medical personnel must take these results into consideration.

Interpersonal distances, coping strategies and psychopathology in patients with depression and schizophrenia

AIM To explore (1) intergroup differences in comfortable interpersonal distances (CIDs) and the use of coping strategies; (2) the association of these parameters with individual symptomatology; and (3) the interplay between CIDs and coping styles in patients with depression and schizophrenia. METHODS The parameters of interest were assessed by means of standardized questionnaires: CID and Coping Inventory for Stressful Situations. Psychopathology was evaluated with the Beck Depression Inventory and Positive and Negative Syndromes Scale. ANOVA, Pearsons correlations and multiple regression analyses were used to examine relationships among the variables. RESULTS Compared with controls, depressed patients were more distanced from family members, significant others and self-images, whereas patients with schizophrenia were less distanced from neutral and threat-related stimuli. Distancing from self-images was mostly associated with depression severity in depressed patients, whereas distancing from hostile and threat-related stimuli with the severity of psychotic and affective symptoms in patients with schizophrenia. Both patient groups used more emotion-oriented than task-oriented and avoidance-oriented coping strategies. Self-distancing among patients with schizophrenia was positively associated with the use of the social diversion coping, implying social support seeking. CONCLUSION Patients with depression and schizophrenia use different maladaptive emotion - regulation strategies to cope with their symptoms and related distress. Training in stress management might provide these patients with skills for more effective emotion regulation.

Trends in dual diagnosis of severe mental illness and substance use disorders, 1996-2010, Israel

OBJECTIVES (1) To examine the trends in the incidence of dual diagnosis (DD) of severe mental illness and substance-related disorders among inpatients in Israel, and (2) the demographic and clinical correlates of DD patients. METHOD Using data from the National Psychiatric Case Register, we identified 56,774 inpatients aged 15-64 whose first psychiatric hospitalization occurred between 1996 and 2010. We compared the characteristics of inpatients having DD with drugs, alcohol or drug/alcohol abuse with those with mental disorder only. RESULTS Over the period, DD with drugs decreased from 8.2% in 1996 to 6% in 2010; DD with alcohol increased from 3% to 4% and DD with drugs/alcohol from 2% to 4%. DD with drugs was highest, whereas DD with alcohol was lowest for the youngest age- group in 1996 but increased to the same as other age-groups in 2006-2010. Male gender, a previous suicide attempt, compulsory hospitalizations and marital status were positive predictors for all DD. Immigrant status was a positive predictor of DD with alcohol, but the opposite for DD with drugs; being Jewish and psychotic diagnosis was a positive predictor of DD with drugs, but negative for DD with alcohol. CONCLUSIONS Over the study period, DD with drugs has decreased among young patients, although it is still higher than among older groups. However, DD with alcohol or drugs/alcohol has increased in the younger group. The clinical-demographic profile of DD patients was similar to that from the relevant literature, except for immigrant status that was negatively associated with DD with drugs.