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Biomedical subjects

C L Hanson

Publications and source records attributed to C L Hanson.

At least 19 recordsLinked to original sources
PubMed1992

Contributions of sibling relations to the adaptation of youths with insulin-dependent diabetes mellitus.

Associations among sibling relations and the psychosocial and illness-specific adaptation of youths (N = 66) with insulin-dependent diabetes mellitus (IDDM) were examined. The findings suggest that sibling relations, especially sibling conflict, contribute an independent source of variance above and beyond that contributed by demographic characteristics, sibling constellation variables, and important dimensions of family relations in predicting the youths' adaptation. High family-life stress and high sibling status/power contributed unique variance in predicting internalizing behaviors, and male gender and sibling conflict contributed independently to externalizing problems. Sibling conflict also contributed unique variance to the youth's general self-esteem, along with social class and family cohesion, and to their adjustment to IDDM. Data suggest that parent-child dyads and sibling dyads represent interrelated and independent subsystems within the family, and that both subsystems may influence the psychosocial functioning of youths with IDDM.

Adaptation, Psychological↗
PubMed1992

Relationship between psychosocial functioning and body fat in preschool children: a longitudinal investigation.

This study examined whether preschool children differed on measures of psychosocial functioning both cross-sectionally and longitudinally. One hundred and thirty-two children who varied in levels of body fat participated in the study along with their natural parents. Results indicated that the children did not differ in levels of self-esteem and family functioning as a function of their body fat. Prospectively, physical self-esteem weakly (but significantly) correlated with body fat at 1 and 2 years, and father's perception of family functioning predicted body fat at 1 year only. Results suggested that childhood obesity may not develop as a result of psychosocial factors.

Adipose Tissue↗
PubMed1992

Comparing social learning and family systems correlates of adaptation in youths with IDDM.

Evaluated social learning and family systems theoretical models to determine (a) whether illness-specific family relations (based on social learning theory) and general family behaviors (based on family systems theory) relate uniquely to the youths' illness-specific and psychosocial adaptation, and (b) whether these types of family relations covary or whether they represent distinct aspects of family functioning. Participants included 95 youths with insulin-dependent diabetes mellitus (IDDM) and their parents. Positive and supportive family relations (illness-specific family support, general family affection, general family adaptability) as well as conflictual and nonsupportive relations (i.e., illness-specific family nonsupport, general family conflict) were assessed. Results suggest that both illness-specific and general family relations uniquely predict the youths' dietary adherence and general psychosocial adaptation. Because illness-specific and general family relations also covary, broad-based models that include both types of family functioning seem warranted.

Adaptation, Psychological↗
PubMed1992

Children at familial risk for obesity: an examination of dietary intake, physical activity and weight status.

A large cohort of children was divided into two groups based on their parents' weight status. The high risk group had one or two overweight parent(s) (n = 92, 4.4 +/- 0.5 years), while the low risk group had no parent overweight (n = 95, 4.5 +/- 0.5 years). Weight of the two groups was similar at the start of the study but the high risk group gained marginally more weight over a one year period (P = 0.05). Although total energy intake was similar, the high risk group was consuming a larger percentage of energy from fat (P = 0.0004) and a smaller percentage from carbohydrate (P = 0.0002). Observed physical activity as similar for most levels but marginally higher for the stationary level and marginally lower in total activity in the high risk group. These results suggest a pattern that may lead to increased weight gain in a high risk group as they grow older.

Adult↗
PubMed1991

Physical activity, body composition, and blood pressure: a multimethod approach.

The purpose of the current investigation was to evaluate, using multiple measures of physical activity, the relationships among physical activity, body composition, resting heart rate, and blood pressure in an adult population. Subjects were 221 male (135 normal weight, 86 overweight) and 221 female (156 normal weight, 65 overweight) subjects participating in a longitudinal study of cardiovascular risk factors in families. All subjects were administered three physical activity questionnaires. Principal components analyses were conducted to reduce measures into empirically derived subscales; this analysis revealed five stable factors in men and four in women. Results indicated that aerobic/leisure time significantly correlated to body composition and resting heart rate in both men and women. Additionally, aerobic/leisure time activity was related to blood pressure in women, and moderate activity was related positively to blood pressure in men. No other form of activity (e.g., light activity, anaerobic activity) was related to either adiposity or blood pressure. The implications of these results are discussed, and future research directions are highlighted.

Adult↗
PubMed1991

Measuring short-term dietary intake: development and testing of a 1-week food frequency questionnaire.

Measures typically used to assess short-term intake are 24-hour recalls or records of food intake. However, these methods require a large time commitment from both researchers and subjects. Our study sought to develop a more time-efficient method of assessing short-term intake by developing a 7-day food frequency questionnaire (7DFFQ). We modified Willett's 1-year food frequency questionnaire to assess intake for a 7-day period. Content validity has previously been exhibited in Willett's work. We assessed criterion validity by comparing the 7DFFQ with 24-hour recalls. Twenty-one female and 20 male college students were asked to recall their previous day's intake three times during a 1-week period. After the last recall, subjects completed a 7DFFQ covering the same week. Data were analyzed by comparing each recall and the mean of the three recalls with values obtained on the 7DFFQ. Analyses revealed high correlations between the mean of the three recalls and the 7DFFQ. Further analysis ranked subjects into quartiles for each nutrient on both measures. Most subjects changed either no quartiles or only one quartile for total energy and each nutrient. Test/retest reliability was assessed by administering the 7DFFQ to a group of women for two consecutive weeks and by administering the 7DFFQ to a group twice 3 hours apart. Pearson's r and intraclass correlations for the two administrations show moderately high reliability over the 1-week period and considerable improvement with the 3-hour administration. The 7DFFQ appears to meet several of the criteria for a measure of dietary intake.

Adolescent↗
PubMed1990

Effects of obesity, social interactions, and physical environment on physical activity in preschoolers.

Examined demographic, environmental, and parent-child interactional correlates of physical activity in a group of 222 preschoolers. Activity levels were assessed with a system that quantified directly observed physical activity in the natural environment. Using regression-modeling procedures, results revealed a significant relationship between (a) child's relative weight, parental weight status, and percentage of time spent outdoors (environment) and (b) children's activity levels. Parental obesity was associated with lower levels of physical activity in children, childhood relative weight was associated with slightly higher levels of physical activity, and more outdoor activity was associated with higher activity levels. Parental participation in children's activities also significantly interacted with levels of parental obesity in predicting activity levels. Those children with a 50% risk for obesity (as defined by both, one, or neither parent being overweight) had small changes in activity across levels of parent-child interaction, whereas those at higher risk for obesity responded with increased activity as parent-child interactions increased. Results are discussed, and the implications of these findings for future intervention efforts are examined.

Child, Preschool↗
PubMed1990

Smoking status: effects on the dietary intake, physical activity, and body fat of adult men.

This investigation evaluated the relationship between smoking status and body fatness, dietary intake, and physical activity in adults. Subjects were 210 males who were either regular cigarette smokers (n = 35) or nonsmokers (n = 175). Estimated body fat and waist-to-hip (girth) measurements were carefully obtained. Additionally, a sensitive assessment of long-term dietary intake and a multifactorial approach to the assessment of physical activity were made. Results indicated that smokers had lower estimated body fat as calculated by multiple skinfold thickness assessments. In contrast, smokers reported the same total energy intakes as nonsmokers and their levels of physical activity were significantly lower than those of nonsmokers. The differences in intake and expenditure in smokers and the role of metabolism as a possible determinant of the body fat differences in smokers vs nonsmokers are discussed.

Adult↗
PubMed1990

Peptic ulcer disease in youths with insulin-dependent diabetes mellitus: a prospective study.

Tested whether metabolic control, treatment variables, and psychosocial factors are associated with the onset of peptic ulcer disease (PUD) in 14 Ss with IDDM who later developed PUD and a matched group of 14 Ss who did not. Metabolic control was recorded 1 year before PUD diagnosis, at diagnosis, and 6 and 12 months after diagnosis. Treatment variables (adherence, insulin dose, number of injections, number of hospitalizations) and psychosocial factors (coping, stress, family relations) were assessed an average of 20 months prior to PUD diagnosis. A 2 (Group) x 4 (Time) repeated measures ANOVA revealed no between-groups differences on metabolic control. One-way ANOVAs indicated the groups did not differ on treatment variables or psychosocial factors, except that Ss in the PUD group reported more insulin injections. Research is needed regarding the correlates of PUD in Ss with well-controlled IDDM of relatively brief duration.

Adaptation, Psychological↗
PubMed1990

The perceived self-competence of adolescents with insulin-dependent diabetes mellitus: deficit or strength?

Two studies were conducted in an attempt to replicate an earlier finding of self-esteem deficits in adolescent girls with early onset of insulin-dependent diabetes mellitus (IDDM). Participants in Study 1 were 139 adolescents with IDDM who completed the Perceived Competence Scale for Children (Harter, 1979). A 2 (gender) X 2 (group: age of IDDM onset: early vs. late) multivariate analysis of variance (MANOVA) did not reveal a significant interaction effect. Study 2 included 136 adolescents (104 adolescents with IDDM and 32 physically healthy adolescents) who completed the Self-Perception Profile for Children (Harter, 1985). A 2 (gender) X 3 (early IDDM onset, late IDDM onset, physically healthy control) MANCOVA, controlling for the effects of social class and adolescent age, also indicated no significant interaction effect. Thus, we found no differences in self-esteem based on age at disease onset and gender in two independent samples of youths with IDDM. In Study 2, significant gender and group effects were revealed, but when these findings are compared with normative data and data from our physically healthy sample, the results suggest that the youths with IDDM were functioning within the normal range on self-esteem. The importance of these findings in regard to the deficit versus adaptation models of chronic illness is discussed.

Adaptation, Psychological↗
PubMed1990

The accuracy of self-reports of physical activity.

This investigation determined the accuracy of self-reports of physical activity compared to observations obtained surreptitiously. Subjects were 44 adults engaged in 1 h of their preferred physical activity while actual activity levels were surreptitiously obtained and compared to immediate self-reported estimates of physical activity. Results indicated that subjects were moderately accurate in recalling their physical activity levels (R = 0.62) but underestimated sedentary activities and overestimated aerobic activities by over 300%. Males overestimated their activity relative to females, and obese subjects underestimated their activity levels compared to normal-weight subjects. Finally, a number of two-way interactions that moderated the accuracy of those subjects engaging in high chronic levels of physical activity were observed.

Adult↗
PubMed1990

The effects of applicant's health status and qualifications on simulated hiring decisions.

The effects of having diabetes or obesity on simulated job decisions was evaluated in a two (qualifications, high v. marginal) by three (diabetes, mildly obese, or normal) design. Subjects were 295 adults, averaging 5.02 years of full-time employment in white-collar settings, recruited in advanced level graduate or undergraduate business classes. Each subject examined a job description and a resume of the 'applicant' and viewed a 5-minute videotape. The applicant's face was never seen and an off-camera voice, constant across all conditions, was dubbed in for the applicant's responses to the interviewer's questions. Subjects were then asked to rate the applicant's qualification level and demeanor during the interview and to recommend whether or not to hire the individual. Subjects were also asked to make ratings about the applicant's work habits, work reliability and absenteeism, and interpersonal skills (e.g. emotional problems, likeability). Results indicated that level of quantification affected decisions to hire the applicant in the predicted direction. However, the obese applicant was rated as less qualified for the job, and both the diabetic and obese applicant were less likely to be hired, although they were rated similarly on personal appearance, attitude during the interview, and communication skills. Additionally, both the obese and the diabetic applicant were viewed as having poorer work habits. The diabetic was rated as much more likely to have medically-related job absences, whereas the obese applicant was rated as more likely to have other absences (e.g. abusing company privileges by feigning illness) and to have emotional and interpersonal problems.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1989

A prospective study of the reliability and convergent validity of three physical activity measures in a field research trial.

This investigation sought to determine the test-retest reliability and convergent validity of three commonly used physical activity measures. The Stanford Physical Activity Recall, the Caltrac Activity Monitor, and a daily physical activity log were administered to 45 subjects over a 3-week period. The results indicated high levels of test-retest reliability for the Stanford and the daily log; low test-retest reliability was obtained for the Caltrac. Convergent validity was also high between the Stanford and daily log but was low for both of these measures with the Caltrac. These results suggest that the Stanford Physical Activity Recall may be the self-report measure of choice for large studies due to its high reliability and convergent validity with a more time-consuming daily log, as well as its cost- and time-efficiency. Based on the results, it is recommended that the Caltrac activity sensors not be used for field studies of physical activity until the logistical problems of their use in clinical trials are solved.

Adult↗
PubMed1989

Coping styles in youths with insulin-dependent diabetes mellitus.

The relationships between two coping styles (i.e., use of personal and interpersonal resources; ventilation and avoidance) and two health outcomes (i.e., adherence and metabolic control) were evaluated in 135 youths with insulin-dependent diabetes mellitus (IDDM). Individual characteristics (i.e., age, duration of illness) and contextual variables (i.e., stress, family relations) were used to predict coping styles. Poor adherence to treatment, older adolescent age, and long duration of IDDM were correlated with ventilation and avoidance coping. Youths with short duration of IDDM were more likely to cope through the use of personal and interpersonal resources, although this strategy was not associated with health outcomes. A multiple regression analysis indicated that high ventilation and avoidance coping was predicted by high stress, low family cohesion, and older adolescent age. In addition, the interaction between family adaptability and duration of IDDM significantly predicted ventilation and avoidance coping.

Adaptation, Psychological↗
PubMed1989

Family system variables and the health status of adolescents with insulin-dependent diabetes mellitus.

This study investigated the associations between important dimensions of family relations and the metabolic control of adolescents with insulin-dependent diabetes mellitus (IDDM). Participants were 94 intact families (mother, father, and adolescent) of adolescents with IDDM. Metabolic control was determined by the adolescents' level of HbA(1c), and family relations were assessed with the Marital Adjustment Scale and the Family Adaptability and Cohesion Evaluation Scales-II. Although zero-order correlations showed that good metabolic control was associated with high family cohesion, family flexibility, and high marital satisfaction, hierarchical regression analyses revealed that these associations were considerably attenuated when participant demographic variables, especially the duration of IDDM, were controlled. Follow-up analyses showed that the associations between family relations and metabolic control were mediated by the duration of IDDM. Under conditions of short duration, there were strong associations between family relations and metabolic control. As duration lengthened, however, these associations decreased substantially. These results suggest that the associations between family relations and health are relatively complex in this sample of adolescents with IDDM.

Adaptation, Psychological↗
PubMed1989

Recall of a child's intake from one meal: are parents accurate?

Although the accuracy of dietary intake information for children has previously been studied, methodological issues make the results of those studies difficult to interpret. In order to address one of the major methodological issues, unobtrusive observations were performed on the lunch meal of 34 children. These children ranged in age from 4.0 to 9.5 years (mean = 5.8 years, standard deviation = 1.6 years). Each child was accompanied by both parents. Dietary recalls were obtained the following day from (a) the mother alone, (b) the father alone, and (c) the mother, father, and child reporting as a group (consensus recall). Recalls were analyzed with nutrition software that yields information on energy, protein, carbohydrate, sugar, total fat, cholesterol, sodium, iron, and calcium. Strong correlations were seen between each recall and the observation (mean r = .86). However, the group accuracy in correctly reporting different types of foods varied from the fathers' under-reporting of breads (-27%) to fathers' over-reporting of fruit (+50%). When regression analyses were used, only the consensus recall resulted in a regression line not significantly different from 1.0 for the majority of the nutrients analyzed. Thus, it appears that the consensus recall produced a better estimate of the observed intake from one meal than did recalls obtained from mother or father.

Child↗
PubMed1988

Accuracy of self-reports of food intake in obese and normal-weight individuals: effects of obesity on self-reports of dietary intake in adult females.

The purpose of this study was to determine the accuracy of self-reported 24-h dietary recalls of overweight and normal-weight adults. Forty female college students (21 overweight, 19 normal weight) consumed a lunch meal at the university cafeteria while being unobtrusively observed. The following day subjects returned to the lab and completed a 24-h recall of their food intake. Accuracy of recalls was assessed by comparing directly observed intake with self-reported intake. Correlated t tests comparing observed and reported intake found a significant amount of overreporting of consumption for the entire sample. When analyses were conducted on individual groups (normal weight vs overweight), no between-group differences were found. A series of one-way analyses of variance (ANOVA) (normal weight vs overweight) and a multivariate ANOVA were performed for total calories, nutrients, and the amount of over- and underreporting. No significant differences between groups were observed.

Adolescent↗