Objective: To identify how demographic factors (sex, age, ethnicity) modify the association between personality traits and body mass index (BMI) and to test the extent that diet and physical activity account for the personality-BMI relations.
Design: Cross-sectional study with a diverse sample (N = 5150, 50% female, 19% African American, 15% Hispanic). Participants completed a measure of the five major dimensions of personality and reported on their physical activity, diet and food intake behaviour, and height and weight.
Main Outcome Measures: BMI and obesity (BMI ≥ 30).
Results: High Neuroticism was associated with higher BMI and risk for obesity, whereas Conscientiousness and, to a lesser extent, Extraversion and Openness were protective. These associations were generally stronger among women and older participants; there was less evidence for ethnicity as a moderator. Personality had similar relations with the behavioural factors, and physical activity, diet and regular meal rhythms accounted for approximately 50% of the association between Neuroticism and Conscientiousness and BMI.
Conclusion: This study supports the links between personality traits and BMI and suggests that physical activity, more than diet, is a key factor in these associations. 相似文献
Theory-based interventions can enhance people’s safe water consumption, but the sustainability of these interventions and the mechanisms of maintenance remain unclear. We investigated these questions based on an extended theory of planned behaviour. Seven hundred and ten (445 analysed) randomly selected households participated in two cluster-randomised controlled trials in Bangladesh. Study 1 promoted switching to neighbours’ arsenic-safe wells, and Study 2 promoted switching to arsenic-safe deep wells. Both studies included two intervention phases. Structured interviews were conducted at baseline (T1), and at 1-month (T2), 2-month (T3) and 9-month (T4) follow-ups. In intervention phase 1 (between T1 and T2), commitment-based behaviour change techniques – reminders, implementation intentions and public commitment – were combined with information and compared to an information-only control group. In phase 2 (between T2 and T3), half of each phase 1 intervention group was randomly assigned to receive either commitment-based techniques once more or coping planning with reminders and information. Initial well-switching rates of up to 60% significantly declined by T4: 38.3% of T2 safe water users stopped consuming arsenic-safe water. The decline depended on the intervention. Perceived behavioural control, intentions, commitment strength and coping planning were associated with maintenance. In line with previous studies, the results indicate that commitment and reminders engender long-term behavioural change. 相似文献
This study examined the relationships of frequency and type of psychiatric diagnosis to suicidality within a sample of chronically and severely ideating college-aged students (N=78). The most common diagnoses were the depressive disorders, comprising 43% of all diagnoses, followed by anxiety disorders, comprising 17% of all diagnoses. Retrospective reports of childhood diagnoses were also quite common, comprising 38% of all diagnoses. Number of psychiatric diagnoses was significantly correlated with severity of suicidal ideation (r=.27,p<.02). Hierarchical regression analyses revealed that retrospective childhood diagnoses of attention deficit hyperactivity disorder (ADHD) and separation anxiety disorder significantly predicted 19% of the variance in severity of suicidal ideation after controlling for current diagnoses of major depression and PTSD. When entry of childhood and current diagnoses were reversed, PTSD significantly predicted 4% of the variance in severity of suicidal ideation, while major depression was rendered nonsignificant. Severe suicide ideation, therefore, may be a product of early psychological problems as well as the number of such problems. 相似文献
Quality of life after spondylodesis was predicted by pretreatment psychological variables and findings in a standardized physical examination. Four quality-of-life criteria were used: functional capacity, vocational rehabilitation, satisfaction with the outcome of the operation, and pain intensity recorded in a pain diary. Those of six presurgery variables that proved to be associated with the outcome 9 months postsurgery, by means of a multiple stepwise regression procedure, were selected for discriminant analyses. The sample consisted of 50 consecutive patients who underwent either ventral (n = 10) or posterolateral (n = 40) spondylodesis with or without posterior instrumentation. Their average age was 44.9 years (SD = 12.9) with an average duration of pain of 8.6 years (SD = 8.8). Nearly half of the patients had had previous spine surgery. Follow-up data indicate that about half of the patients show a beneficial outcome in terms of quality-of-life measures. Discriminant analyses suggest that poor presurgical functional capacity and an unclear finding in the physical examination before surgery contribute to our knowledge about patients who are likely to show continuous pain and poor functional capacity after surgery.相似文献
In this case study of economists' forecasts concerning economic downturn, we examine key issues concerning the psychology of prediction and the controversy surrounding the value of expertise in forecasting. We examine when experts' knowledge promotes forecast accuracy and whether biases found in psychological studies (including underutilization of relevant base rates and tendencies to extreme prediction) occur in these economic forecasts. Experts' forecasts were compared to forecasts derived from base-rate models that relied on the historical frequencies of economic downturns. The performance patterns of the experts and models crossed over the forecast horizon. Experts outperformed models in shorter-term forecasting, whereas models outperformed experts in longer-term forecasting. These results highlight the abilities and limits of experts and models in prediction and the sources of their inaccuracy. 相似文献
Gender-related differences in the prediction of five year-olds' cognitive abilities from measures of distal environment, proximal environment and infant test scores were examined in a random sample of 93 boys and 90 girls. Distal environmental data included maternal IQ, maternal and paternal education. Proximal environmental data included two variables derived from the Home Screening Questionnaire: the Home Questions and the Toy Checklist. The Bayley MDI was administered at age 13 months, whereas WPPSI-R was used as cognitive outcome measure at age 5 years. The relationship between paternal education and child IQ, and between proximal environmental variables and child IQ was significantly stronger for boys than for girls. The associations between proximal environment and IQ in boys, were accounted for by the distal environmental variables. Bayley MDI correlated significantly higher with girls' IQ compared to boys' IQ. Findings are discussed in terms of parental gender-differentiated socialization processes. 相似文献
Studies on attitudes towards refugees in France have only focused on “native” French people. Extending the study beyond the majority group is important, given the multicultural composition of contemporary Western societies. To this end, 144 “native” French and 109 Maghrebi-French were surveyed. We first tested the model whereby the link between national identification and prosocial intentions towards refugees is mediated by the threat perception, with the group of origin as a moderating variable. This model only applies to “native” French. We then took a closer look at the precursors of prosocial intentions among Maghrebi-French (national identity misrecognition , individualistic/collectivistic orientation). Identity misrecognition correlates positively with prosocial intentions. When controlling for other variables, collectivism is the factor that best predicts the expression of these intentions. Overall, our study showed that depending on the group of origin (“natives” vs. Maghrebi-French), we react differently to refugees. However, even if the feeling of identity misrecognition among Maghrebi-French seems to be associated with the expression of prosocial intentions, the extent of its negative consequences should not be overlooked. 相似文献
This study was a preliminary attempt to develop and examine an online pain management programme incorporating mindfulness‐informed exercises (i.e. breathing and body scanning exercises) and CBT elements for ankylosing spondylitis patients. Thirty patients diagnosed with ankylosing spondylitis participated in a five‐week online pain management programme, which was delivered primarily through a website. The materials covered by the website included breathing and body scanning exercises, mindful walking exercise, positive thinking and management of dysfunctional thinking. Each participant received instructions and reminders from a counselling psychologist through electronic communications each week. They completed the Brief Pain Inventory, Ryff's Psychological Well‐being Scale, Pain Self‐Efficacy Questionnaire, Pain Catastrophizing Scale and Cognitive and Affective Mindfulness Scale‐Revised before and after the treatment programme. In addition, four face‐to‐face focus groups were conducted to yield supplementary qualitative findings. The overall results indicate that this online pain management programme can improve sleep quality and reduce pain interference and catastrophic responses to pain in ankylosing spondylitis patients, albeit being not very effective for mitigating the intensity of pain. Moreover, male and female patients can benefit equally from the online programme. Findings from the focus groups revealed some challenges faced by local patients when practising mindfulness‐informed exercises. Some solutions to those challenges were put forward in accordance with patients’ feedback. 相似文献