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PubMed1992

Moderate to heavy infections of Trichuris trichiura affect cognitive function in Jamaican school children.

A double-blind placebo trial was conducted to determine the effect of moderate to high loads of Trichuris trichiura (whipworm) infection on the cognitive functions of 159 school children (age 9-12 years) in Jamaica. Infected children were randomly assigned to Treatment or Placebo groups. A third group of randomly selected uninfected children were assigned to a Control for comparative purposes. The improvement in cognitive function was evaluated using a stepwise multiple linear regression, designed to control for any confounding variables. The expulsion of worms led to a significant improvement in tests of auditory short-term memory (P less than 0.02; P less than 0.01), and a highly significant improvement in the scanning and retrieval of long-term memory (P less than 0.001). After 9 weeks, treated children were no longer significantly different from an uninfected Control group in these three tests of cognitive function. The removal of T. trichiura was more important than Ascaris lumbricoides in determining this improvement. The results suggest that whipworm infection has an adverse effect on certain cognitive functions which is reversible by therapy.

Albendazole↗

PubMed1984

[A change of attitude among health personnel: a function of the schools of public health].

This presentation examines the problem of certain attitudes of persons employed in health and other sectors, and of the beneficiary population itself which, though not blocking, at least make it difficult to promote the attainment of health for all based on primary care. The author describes the changes of attitude and behavior patterns needed both in the whole population, for whose sake the changes are needed, and in those charged with establishing policies and providing health care. At the same time, he identifies the functions that schools of public health may have to perform in order to promote and bring about those changes. With a precise idea of what the desirable changes are and what they consist of, the article examines in detail the principal areas of interest, which it distinguishes as follows: the meaning of health; the meaning of health care and health development; the scope of policy-making; intersectoral and multidisciplinary collaboration; community involvement and self-care; cost-containment of medical care; health system organization and operation; health management training, and health manpower development. The author concludes by underscoring the vital importance of understanding the meaning of health for all and of taking cognizance of the current deficiencies of the health education and service systems, but states that it is just as important to keep an optimistic and positive attitude.

Attitude of Health Personnel↗

PubMed2002

Chinese adolescents' perceptions of family functioning: personal, school-related, and family correlates.

The author used two translated measures (Self-Report Family Inventory; D. T. L. Shek, 1998); and Family Assessment Device; N. B. Epstein, L. M. Baldwin, & D. S. Bishop, 1983) and a locally developed scale (Chinese Family Assessment Instrument; D. T. L. Shek, in press-a) to assess 3,649 Chinese adolescents' perceptions of how well their families function. He found that boys perceived their families to function worse than did girls and that younger adolescents perceived their families to function better than did older adolescents. Perceived family functioning was negatively related to grade level; students attending schools with higher academic standards perceived their families to function better than did students attending schools with lower academic standards; and students attending government and aided schools had higher levels of family functioning than did students attending private schools. Family types (intact vs. nonintact families) and the duration of parents' stay in Hong Kong were also related to the adolescents' perceptions of family functioning. Findings for the personal, school-related, and family correlates of perceived family functioning were statistically significant and stable across different measures of family functioning, but the practical significance of the findings was not high.

Adolescent↗

PubMed2003

Normative data and developmental characteristics of hand function for elementary school children in Suwon area of Korea: grip, pinch and dexterity study.

This study was designed to establish norms of hand function, and to identify developmental characteristics of hand function among the Korean children. 712 elementary school children participated in measurement of grip strength, three kinds of pinch strength, and dexterity. The hand strength of the Korean children appeared to be weaker than that of western children. The grip strength of boys was significantly stronger than that of girls in all ages for both hands. The order of magnitude of three kinds of pinch strength was, in descending order, lateral pinch, palmar pinch and tip pinch for both boys and girls. There was no significant difference of hand function according to the type of hand dominance in boys. However, girls with left hand dominance showed weakness of bilateral grip, right tip pinch, and bilateral lateral pinch strength compared with girls with right hand dominance. In conclusion, this study provided normative data of hand functions including dexterity, and enabled us to identify some developmental characteristics of hand functions for the Korean elementary school children.

Age Factors↗

PubMed1979

Departmental review in medical schools: focus and functions.

Approximately two-thirds of all U.S. and Canadian medical schools have provisions for the evaluation of their departments on a periodic or ad hoc basis. Most of these institutions have initiated the departmental review process since 1970. It appears that use of the practice is increasing and is becoming an important tool in providing guidance for departmental activities, programs, and leadership. Departmental review may be conducted in a variety of ways with varying levels of intensity, flexibility, and skill, depending on the environment, resources, dean, department chairmen, faculty, and attitudes of university administrators. Departmental review may be employed to identify, elaborate, document, and/or contribute to the resolution of current and potential organizational concerns. When carefully administered, the process can be a stabilizing rather than a disruptive force; however, by itself, it does not solve major institutional problems.

Canada↗

PubMed1997

The impact of the classroom environment on defining function in school-based practice.

OBJECTIVE: Whether the environment is stressed in function-dysfunction decisions appears to depend on where in the hierarchy of components of complex tasks and of role skills the evaluating therapist is focused. This study examined the intervention planning decisions of occupational therapists who used the Model of Student Role Adaptation, which emphasizes the complex tasks involved in the student role. The purpose of the study was to determine whether these therapists were responding to environmental demands in planning their interventions. METHOD: Special education teachers selected tasks that they believed were the most essential for student functioning within their classroom environments. These selections were compared with the goals and objectives developed by occupational therapists who serve children in these settings. RESULTS: Chi square analysis indicated a significant relationship between tasks designated by the teacher participants as environmental demands and those included in occupational therapy intervention planning. CONCLUSION: The results suggest that the occupational therapist participants were responding to the environmental demands of the classroom when constructing their intervention plans.

Activities of Daily Living↗

PubMed2002

[Studies of psychophysiological functions of middle school age students after prolonged physical training].

Longitudinal researches of neurodynamical functions of pupils 11-15 y. of control and sport classes were executed. The comparative analysis of the study's materials has shown that the research objects with the high level of properties of the basis nervous processes are characterized by faster and more intensive changes of the neurodynamical functions. Long-lasting physical loadings in dependence on typological gradation provide more intensive sensomotor reactions' activation of some functions of attention. At the boys of sports classes the higher functional mobility of the basic nervous processes provide a shorter latent period of the complex sensomotor reactions of a choice, more intensive activation of speed of processing of the information and switching of attention. All parameters (which were analysed) of neurodynamical functions undergo changes, which character depends on duration of influence of physical loadings.

Adolescent↗

PubMed1993

Effects of aircraft noise on hearing and auditory pathway function of school-age children.

This study was conducted to investigate the influence of high-frequency aircraft noise on the function of the auditory system of school-age children. A total of 228 students attending a school near an airport (school A) and 151 students attending a school far from an airport (school B) were analyzed. Audiometry and brainstem auditory evoked potential (BAEP) detection were performed in all subjects to evaluate cochlear and retrocochlear function. The results of audiometry indicated that hearing ability was significantly worse in the children of school A, which was located under the flight paths. The values of pure tone average, high pure tone average, and threshold at 4 kHz were all higher in children who were frequently exposed to aircraft noise. There was no consistent difference in BAEP latencies between the two schools. These results indicate that central transmission is not affected in children who have been exposed to aircraft noise for several years. The results of the present study showed a significant association between aircraft noise exposure and prevalence of noise-induced hearing loss. Although damage to peripheral cochlear organs was confirmed in school-age children, involvement of the central auditory pathway could not be verified.

Aircraft↗

PubMed1998

The role of domestic factors and day-care attendance on lung function of primary school children.

The results of studies examining the relationship of domestic factors to lung function are contradictory. We therefore examined the independent effects of maternal smoking during pregnancy, exposure to environmental tobacco smoke (ETS), the presence of a cat, type of heating and cooking used in the home and day-care attendance on lung function after controlling for socioeconomic status (SES). Nine hundred and eighty-nine children from 18 Montreal schools were studied between April 1990 and November 1992. Information on the child's health and exposure to domestic factors was collected by questionnaire. Spirometry was performed at school. The data were analysed by multiple linear regression with percent predicted FEV1, FVC, and FEV1/FVC as dependent variables. In the overall sample (both sexes combined), cat in the home (regression coefficient, beta = -1.15, 95% confidence interval, CI: -2.26-(-)0.05) and electric baseboard units (beta = -1.26, 95% CI: -2.39-(-)0.13) were independently associated with a lower FEV1/FVC, while day-care attendance (beta = -2.05, 95% CI: -3.71-(-)0.40) significantly reduced FEV1. Household ETS was significantly associated with increasing level of FVC (beta = 2.86, 95% CI: +0.55 to +5.17). In boys but not girls, household ETS (beta = -2.13, 95% CI: -4.07-(-)0.19) and the presence of a cat (beta = -2.19, 95% CI: -3.94-(-)0.45) were associated with lower FEV1/FVC. By contrast, day-care attendance was associated with lower FEV1 (beta = -2.92, 95% CI: -5.27-(-)0.56) and FEV1/FVC (beta = -1.53, 95% CI: -2.73-(-)0.33) in girls only. In conclusion, the results provide evidence that domestic factors and day-care attendance primarily affected airway caliber and gender differences were apparent in the effects of these factors.

Adolescent↗

PubMed2001

Gender Differences in Writing Motivation and Achievement of Middle School Students: A Function of Gender Orientation?

The aim of this study was to determine whether gender differences in the writing motivation and achievement of middle school students (N = 497) are a function of gender-stereotypic beliefs rather than of gender. Girls reported stronger writing self-efficacy, writing self-concept, self-efficacy for self-regulation, value of writing, and task goals, and they received higher grades in language arts. Boys reported stronger performance-approach goals. All gender differences favoring girls in writing motivation and achievement were rendered nonsignificant when feminine orientation beliefs were controlled. Findings suggest that a feminine orientation is adaptive in the area of writing, whereas a masculine orientation is beneficial when escorted by a feminine orientation. Results are interpreted from the perspective of A. Bandura's (1986) social cognitive theory. Copyright 2001 Academic Press.

Journal Article↗

PubMed1996

Acute effects of summer air pollution on respiratory function in primary school children in southern England.

BACKGROUND: There is growing concern about health effects of air pollution in the UK. Studies in the USA have reported adverse effects on lung function among children but no comparable studies have been published in the UK. This study investigates the relationship between daily changes in ambient air pollution and short term variations in lung function in a panel of school children. METHODS: One hundred and fifty four children aged 7-11 attending a primary school adjacent to a major motorway in Surrey, south-east England, were studied. Bellows spirometry was performed daily on 31 schooldays between 6 June and 21 July 1994. Levels of ozone, nitrogen dioxide, and particulates of less than 10 microns in diameter (PM10) were measured continuously at the school and the pollen count was measured six miles away. Relationships between daily changes in forced expiratory volume in 0.75 seconds (FEV0.75), forced vital capacity (FVC), the FEV0.75/FVC ratio and pollutants were analysed using separate autoregressive models for each child. A weighted average of the resulting slopes was then calculated. RESULTS: There was a significant inverse relationship between daily mean PM10 levels lagged one day and FVC, with a reduction in lung function of 1% (95% CI 0.3% to 2%) across the whole range of PM10 levels (20-150 micrograms/m3). The effect on FEV0.75 was similar (-0.5%) but was not significant when weighted by 1/SE2 (95% CI -1.2% to 0.2%). There was no effect of PM10 levels on the FEV0.75/FVC ratio. No significant association was seen between FEV0.75, FVC, or the FEV0.75/FVC ratio and either ozone or nitrogen dioxide levels. There was no evidence that wheezy children were more affected than healthy children. Pollen levels on the previous day had no effect on lung function and did not change the air pollution results. CONCLUSIONS: There is a very small, but statistically significant, adverse effect of airborne respirable particulate matter, measured as PM10, on lung function in this study group. There is no evidence for an inverse association of lung function with levels of ozone or NO2 measured on the previous day.

Air Pollutants↗

PubMed1994

Asthma-related symptoms and lung function in primary school children.

The aim of the present study was to determine the prevalence of asthma-related symptoms in a group of primary school children, by means of a questionnaire completed by their parents, and their lung function using spirometry and the forced oscillation technique (FOT). Also investigated were diagnostic labeling and medical prescription. We approached 535 children, from two primary schools in Maastricht, the Netherlands. Completed questionnaires were received from 482 children (90%). Valid lung function values were obtained in 470 of these children (98%). The lifetime prevalence of wheeze and attacks of shortness of breath with wheeze was 29% and 19%, respectively. The period prevalence of wheeze was 15%, 13% reported chronic cough, and 10% attacks of shortness of breath with wheeze. The doctor-diagnosed asthma and bronchitis prevalence was 6% and 19%, respectively. Of the children diagnosed as having asthma, 69% used antiasthma medication; none of the children diagnosed as having bronchitis used antiasthma medication. A symptom-based asthma prevalence of 11% was calculated. Statistically significant differences in spirometric and FOT indices were found between the children with and without complaints. In conclusion, among the 482 investigated children a relatively high prevalence of unrecognized or misclassified, and therefore undertreated, asthma-related symptoms was found. These observations were confirmed by the lung function data, in that we found significant differences in spirometric and FOT indices between children with and without complaints.

Age Distribution↗

PubMed1997

[Cigarette smoking by mothers during pregnancy and pulmonary function of their school age children].

The paper examines the relation of maternal smoking during pregnancy and lung function of 1029 schoolchildren aged 9 years. Children from Cracow whose mothers had smoked during pregnancy had significantly lower lung function than the children whose mothers had not smoked in this period. On average, spirometric data of FEV1/FVC, FEF25-75% and PEFR were 1.1%, 4.7%, and 3.2% lower respectively, in those children whose mothers had smoked during pregnancy. The effect was statistically significant after accounting for potential confounders such as current smoking habit of parents. The results provide a new support for the hypothesis that deficit in lung function among children is associated with maternal smoking in pregnancy. The strongest effects were found to involve the function of small airways.

Asthma↗

PubMed1996

Language and pragmatic functions in school-age children on the autism spectrum.

This study examined group differences in language and pragmatic functions across sex-, age- and IQ-matched samples of Asperger syndrome (N = 22), high-functioning autism (N = 11), deficits in attention, motor control and perception (DAMP) (N = 11), and speech and language disorder (SLD) (N = 11) groups. The purpose was to explore possible differentiating features in the fields of vocabulary, comprehension and pragmatics and, in addition, to determine whether Asperger syndrome could be reliably separated from high-functioning autism on these variables. The findings suggest that Asperger syndrome may be associated with higher full-scale and verbal IQ than high-functioning autism; Asperger syndrome may not be associated with better pragmatic skills (as defined in this context) than high-functioning autism; language comprehension may not clearly separate Asperger syndrome and high-functioning autism once the effects of very low IQ are partialled out; both DAMP and SLD can be distinctly separated from Asperger syndrome and autism.

Adolescent↗

PubMed1979

Respiratory function in aboriginal school children.

Two hundred and three school-age Aboriginal children living on Cherbourg Aboriginal Settlement have had lung function tested with a dry spirometer. As with other non-Caucasian children, the forced vital capacity (FVC) was about 25% below values for Caucasian children, but the ratio between forced expiratory volume in one second and forced vital capacity (FEV1/FVC ratio), the mean mid-expiratory flow rate (MMEFR) and testing before and after a bronchodilator showed no evidence of widespread airways disease. Analysis of a subgroup of 126 children showed that birthweight, weight at one year of age, and current nutrition did not affect the level of the FVC.

Adolescent↗

PubMed2000

Visual function in school-aged children born before 29 weeks of gestation: a population-based study.

The aim of this study was to assess visual function, including visual perception, in a geographically-based population of school-aged children, with a median age of 7.2 years (range 5.1 to 9.3 years), born before 29 weeks of gestation to mothers living in Goteborg, Sweden. Fifty-one preterm children participated in the study, six of whom had known brain lesions. Visual acuity, visual fields, stereoacuity, and visual perception were tested. The Test of Visual Perceptual Skills Revised (TVPS-R, Gardner 1996) was used to measure visual perception, and the results were compared with those of 50 term (control) subjects. Six percent of the preterm children were visually impaired, with a visual acuity of less than 0.3 (6/18), while 42% of all the preterm children and 34% of those without known brain lesions had a total score below the 5th centile of the reference material for the test, compared with 14% of the control subjects. In conclusion, visual-perceptual problems seem to be common among very preterm children and should be screened for and assessed before the children start school.

Child↗

PubMed1999

Pulmonary function at school-age in surfactant-treated preterm infants.

A follow-up study was conducted in 40 children who had been enrolled in a prospective randomized study of exogenous surfactant therapy for respiratory distress syndrome (RDS) (n = 22; S) or placebo (n = 18; P) to determine long-term pulmonary sequelae of surfactant treatment in premature infants with RDS. At follow-up, mean (SD) age was 6.63 (0.18) and 6.55 (0.23) years for S and P, respectively. Complete lung function tests (LFT) were attempted in all patients. Satisfactory data were obtained in 17/22 surfactant-treated and in 12/18 control children. There was no significant difference between groups for any of the parameters measured. Mean (SD) functional residual capacity (FRC) was 92% (16%) and 90% (21%) predicted, mean (SD) airway resistance (R(aw,exp)) was 122% (25%) and 127% (61%), and mean (SD) forced expiratory volume in 1 s (FEV1) was 104% (12%) and 99% (17%) predicted for S and P. Only maximal expiratory flow at 25% vital capacity (L/s) was significantly below the predicted range in S and P groups, with 74% (23%) and 77% (28%), respectively. To test bronchial hyperreactivity, a simple standardized running test was performed: 4 children in S and 5 in P showed a significant response as defined by clinical airway obstruction or changes in FEV1 and/or R(aw), with no significant difference between groups. Although we found no major abnormalities in lung function and no difference between S and P at early school-age, lack of cooperation during lung function tests makes further follow-up necessary.

Adolescent↗

PubMed1996

Effects of indoor air pollution on lung function of primary school children in Jordan.

Environmental exposure to tobacco smoke and contaminants from unvented cooking stoves has been linked to impaired pulmonary function and respiratory diseases. These risk factors exist to a greater extent in developing countries and, in the case of exposure to tobacco smoke, they are reported to be increasing. In this study, pulmonary function studies were performed on 1905 children in Jordan. The effect of exposure to these environmental factors on respiratory function was analyzed. A significant negative impact was found with regard to environmental exposure to both passive smoking and wood and kerosene unvented cooking stoves. The mean values of lung function in children exposed and not exposed to passive smoking were, respectively, FVC (L): 1.29-1.49; FEV1 (L): 1.2-1.4; FEF25-75 (L/S): 1.84-2.24; PEFR (L/S): 2.6-3.21, and to wood and kerosene were FVC (L): 1.02-1.32; FEV1 (L): 0.91-1.25; FEF25-75 (L/S): 1.24-1.86; PEFR (L/S): 1.67-2.64. This is a major problem in developing countries because of the increasing incidence of smoking and the high exposure to pollution risk factors.

Adolescent↗