Year Interval (year + interval)

Distribution by Scientific Domains


Selected Abstracts


Personality Trait Profiles of Missionary Adolescents

JOURNAL OF TRAVEL MEDICINE, Issue 6 2000
Terry L. Dwelle
Background: The study objective was to compare the Taylor-Johnson Temperament Analysis secondary population norms for adolescents, to test results of Assemblies of God missionary adolescents, and determine if the mission's experience had significant impact on personality traits. Methods: A retrospective record review study of Taylor-Johnson Temperament Analysis test results administered to all missionary adolescents aged 13- to 18-years-old, having attended a yearly school of missions from 1986 to 1994, was performed. A two-sample, two-tailed t -test was used for statistical analysis. Test results were compared with standard adolescent and adult norms. Initial, and second test results when available, were compared for significant personality trait changes in adolescents over a 2,3 year interval, while in the mission's program. Subpopulation norms were calculated for the study group. Results: Initial tests from 438 study group adolescents demonstrated significant differences in 7 of 9 personality trait categories for males, and 8 of 9 for females, compared with test adolescent norms. Initial, and second test comparisons were performed in 67 adolescents, and showed no significant changes in the personality trait scores in males and females. Personality trait profiles for females more closely resembled adult than adolescent norms, with 8 of the 9 personality trait categories showing no significant difference between adult female norms and study females. Conclusions: Clinicians and mission's sending agencies should be aware of the unique Taylor-Johnson Temperament Analysis test patterns for missionary adolescents, and that Taylor-Johnson Temperament Analysis norm tables for adolescents seem inadequate in evaluating missionary adolescents. Appropriate subpopulation norms are likely necessary. The impact of missions on personality trait categories of missionary adolescents seems negligible, but needs further research with methods that assure follow-up testing. These considerations could apply to other subpopulations and psychological tests. [source]


Trends in childhood leukemia mortality in Brazil and correlation with social inequalities

CANCER, Issue 8 2007
Karina B. Ribeiro DDS
Abstract BACKGROUND. Mortality from childhood leukemia has declined substantially in developed countries but less markedly in the developing world. This study was designed to describe mortality trends in childhood leukemia and the impact of social inequalities on these trends in Brazil from 1980 to 2002. METHODS. Cancer mortality data by cause and estimates of resident population stratified by age and sex were obtained from the Brazilian Mortality Information System (SIM) for the years 1980 to 2002. Age-standardized (ages 0-19 years) mortality rates were calculated by the direct method using the 1960 world standard population. Trends were modeled using linear regression with 3-year moving average rates as the dependent variable and with the midpoint of the calendar year interval (1991) as the independent variable. The Index of Social Exclusion was used to classify the 27 Brazilian states. Pearson correlation was used to describe the correlation between social exclusion and variations in mortality in each state. RESULTS. Age-standardized mortality rates for boys decreased from 2.05 per 100,000 habitants in 1984 to 1.44 100,000 habitants in 1995, whereas the observed corresponding decline among girls was from 1.60 per 100,000 habitants in 1986 to 1.14 per 100,000 habitants in 1995. Statistically significant declining trends in mortality rates were observed for boys (adjusted correlation coefficient [r2] = 0.68; P < .001) and girls (adjusted r2 = 0.62; P < .001). Significant negative correlations between social inequality and changes in mortality were noted for boys (r = ,0.66; P = .001) and for girls (r = ,0.78; P < .001). CONCLUSIONS. A consistent decrease in mortality rates from childhood leukemia was noted in Brazil. Higher decreases in mortality were observed in more developed states, possibly reflecting better health care. Cancer 2007. © 2007 American Cancer Society. [source]


Cost-effectiveness of primary cytology and HPV DNA cervical screening

INTERNATIONAL JOURNAL OF CANCER, Issue 2 2008
Peter Bistoletti
Abstract Because cost-effectiveness of different cervical cytology screening strategies with and without human papillomavirus (HPV) DNA testing is unclear, we used a Markov model to estimate life expectancy and health care cost per woman during the remaining lifetime for 4 screening strategies: (i) cervical cytology screening at age 32, 35, 38, 41, 44, 47, 50, 55 and 60, (ii) same strategy with addition of testing for HPV DNA persistence at age 32, (iii) screening with combined cytology and testing for HPV DNA persistence at age 32, 41 and 50, iv) no screening. Input data were derived from population-based screening registries, health-service costs and from a population-based HPV screening trial. Impact of parameter uncertainty was addressed using probabilistic multivariate sensitivity analysis. Cytology screening between 32 and 60 years of age in 3,5 year intervals increased life expectancy and life-time costs were reduced from 533 to 248 US Dollars per woman compared to no screening. Addition of HPV DNA testing, at age 32 increased costs from 248 to 284 US Dollars without benefit on life expectancy. Screening with both cytology and HPV DNA testing, at ages 32, 41 and 50 reduced costs from 248 to 210 US Dollars with slightly increased life expectancy. In conclusion, population-based, organized cervical cytology screening between ages 32 to 60 is highly cost-efficient for cervical cancer prevention. If screening intervals are increased to at least 9 years, combined cytology and HPV DNA screening appeared to be still more effective and less costly. © 2007 Wiley-Liss, Inc. [source]


EFFECTS OF DAM IMPOUNDMENT ON THE FLOOD REGIME OF NATURAL FLOODPLAIN COMMUNITIES IN THE UPPER CONNECTICUT RIVER,

JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, Issue 6 2002
Keith H. Nislow
ABSTRACT: Understanding the effects of dams on the inundation regime of natural floodplain communities is critical for effective decision making on dam management or dam removal. To test the implications of hydrologic alteration by dams for floodplain natural communities, we conducted a combined field and modeling study along two reaches in the Connecticut River Rapids Macrosite (CRRM), one of the last remaining flowing water sections of the Upper Connecticut River. We surveyed multiple channel cross sections at both locations and concurrently identified and surveyed the elevations of important natural communities, native species of concern, and nonnative invasive species. Using a hydrologic model, HEC-RAS, we routed estimated pre-and post-impoundment discharges of different design recurrence intervals (two year through 100 year floods) through each reach to establish corresponding reductions in elevation and effective wetted perimeter following post-dam discharge reductions. By comparing (1) the frequency and duration of flooding of these surfaces before and after impoundment and (2) the total area flooded at different recurrence intervals, our goal was to derive a spatially explicit assessment of hydrologic alteration, directly relevant to natural floodplain communities. Post-impoundment hydrologic alteration profoundly affected the subsequent inundation regime, and this impact was particularly true of higher floodplain terraces. These riparian communities, which were flooded, on average, every 20 to 100 years pre-impoundment, were predicted to flood at 100 , 100 year intervals, essentially isolating them completely from riverine influence. At the pre-dam five to ten year floodplain elevations, we observed smaller differences in predicted flood frequency but substantial differences in the total area flooded and in the average flood duration. For floodplain forests in the Upper Connecticut River, this alteration by impoundment suggests that even if other stresses facing these communities (human development, invasive exotics) were alleviated, this may not be sufficient to restore intact natural communities. More generally, our approach provides a way to combine site specific variables with long term gage records in assessing the restorative potential of dam removal. [source]


Erectile Dysfunction in the Community: Trends over Time in Incidence, Prevalence, GP Consultation and Medication Use,the Krimpen Study: Trends in ED

THE JOURNAL OF SEXUAL MEDICINE, Issue 7 2010
Boris W.V. Schouten MD
ABSTRACT Introduction., In the general population, erectile dysfunction (ED) is surrounded by a "taboo." Epidemiologists studying this problem have to be aware of the phenomenon of the "tip-of-the-iceberg." Aims., Our aim is to describe the iceberg phenomenon for ED and their help-seeking behavior in the general population during a period when public interest in ED heightened and waned after the introduction of the drug sildenafil. Methods., The data were obtained as part of a large longitudinal community-based study, i.e., the Krimpen study. With four rounds of data collection with an approximate 2.1 years interval, the local pharmacists provided data on medication use, whereas abstracts from the medical record and history were provided by the local general practitioners (GPs). The data from the questionnaires were entered into the Krimpen study database but were not communicated to the GPs. Main Outcome Measures., ED: according to the ICS-questionnaire, GP consultation: search of electronic medical dossier for ED or reports from any specialist, use of ED medication as delivered by the pharmacy. Results., The age-standardized prevalence of ED is stable, i.e., around 40%. During the period 1995 to 2000, the incidence increased from 5% to 6.5%, then it stabilizes around 5% per year. The first-time use of ED medication increases exponentially between 1995 and 2000, then it stabilizes at about 3.5% per year. The number of GP consultations by men with ED increases up to 1999, after which it stabilizes at about 1.8% per year. Conclusion., We suggest that the availability and awareness of a new pharmacological option induced a change of behavior among GPs and their patients. Schouten BWV, Bohnen AM, Groeneveld FPMJ, Dohle GR, Thomas S, and Ruun Bosch JLH. Erectile dysfunction in the community: Trends over time in incidence, prevalence, GP consultation and medication use,the krimpen study: Trends in ED. J Sex Med 2010;7:2547,2553. [source]