Nina Knoll

Coping as a mediator between personality and stress outcomes: a longitudinal study with cataract surgery patients

Personality and coping were specified as predictors of emotional outcomes of a mildly stressful medical procedure. Situation‐specific coping was examined in contrast to dispositional coping, and it was tested whether one or the other would mediate the relationship between higher‐order personality factors and stress outcomes. Cataract patients (N=110) participated at four measurement points in time during a six‐week period surrounding their scheduled surgery. Dispositional coping did not mediate the personality–outcome relationship. In contrast, situation‐specific coping acquired a mediator status between personality and adaptational criteria and accounted for independent outcome variance once personality traits were included as predictors in the models. Thus, the data suggest that whether or not coping mediates between personality factors and affective outcomes may be related to the methodological approaches of its operationalization. Copyright

Age and Body Make a Difference in Optimistic Health Beliefs and Nutrition Behaviors

Nutrition behaviors are governed by health beliefs such as risk perceptions, outcome expectancies, and optimistic self-beliefs. This study deals with the role that objective criteria such as age and body weight might play in forming subjective beliefs. The question is whether they can deter people from forming an overly optimistic judgment of their health risk. Six kinds of verbal judgments were assessed, namely self-reported health, vulnerability toward cardiovascular diseases, nutrition outcome expectancies, nutrition self-efficacy, intentions to change one’s diet, and reported nutrition behaviors. In a sample of 1,583 men and women between 14 and 87 years of age, these judgments were statistically related to age and body weight. It was found that people do take their objective risk status into account, but only to a certain degree. The self-serving bias continues to exist throughout all age groups and weight levels. Moreover, it was found that individuals report better intentions to adhere to healthy foods and better nutrition behaviors as they grow older and gain weight.

Social support and quality of life among lung cancer patients: a systematic review

This systematic review analyzed the relationships between social support and quality of life (QOL) indicators among lung cancer patients. In particular, the patterns of relationships between different social support facets and sources (received and perceived support from healthcare professionals, family, and friends) and QOL aspects (emotional, physical symptoms, functional, and social) as well as the global QOL index were investigated.

Emotional support for men and women with cancer: do patients receive what their partners provide?

Objectives: In the context of mainly gastrointestinal cancer surgery, the study examines the course of spousal support in 173 dyads over half a year to illuminate the function of gender in support transactions. Method: Provided and received emotional support were assessed in 108 male patient/female partner couples and 65 female patient/ male partner couples. Using the Berlin Social Support Scales, assessments took place during the week before cancer surgery, 1 month, and 6 months after cancer surgery. Results: Gender differences emerged for support received and provided. Support received from partners was initially high for all patients, remained high over time for men, but decreased for women. Provided support decreased for male partners, but remained high in female partners. The effects were of medium size. Patients’ received support was reflected by partners’ reports of support provided. Women who reported received support 6 months after surgery had partners who had reported support provision 5 months earlier. Conclusions: Alternative sources of support, in particular for women, such as their network of friends or professional help, may need to be identified. A couple-coping intervention could be implemented to help partners learn about each other’s needs in times of crisis and ways to cope with adversity.

Dyadic planning of health-behavior change after prostatectomy : a randomized-controlled planning intervention

In this study, we investigated the role of dyadic planning for health-behavior change. Dyadic planning refers to planning health-behavior change together with a partner. We assumed that dyadic planning would affect the implementation of regular pelvic-floor exercise (PFE), with other indicators of social exchange and self-regulation strategies serving as mediators. In a randomized-controlled trial at a German University Medical Center, 112 prostatectomy-patients with partners were randomly assigned to a dyadic PFE-planning condition or one of three active control conditions. Questionnaire data were assessed at multiple time points within six months post-surgery, measuring self-reported dyadic PFE-planning and pelvic-floor exercise as primary outcomes and social exchange (support, control) and a self-regulation strategy (action control) as mediating mechanisms. There were no specific intervention effects with regard to dyadic PFE-planning or pelvic-floor exercise, as two active control groups also showed increases in either of these variables. However, results suggested that patients instructed to plan dyadically still benefited from self-reported dyadic PFE-planning regarding pelvic-floor exercise. Cross-sectionally, received negative control from partners was negatively related with PFE only in control groups and individual action control mediated between self-reported dyadic PFE-planning and PFE for participants instructed to plan PFE dyadically. Longitudinally, action control mediated between self-reported dyadic PFE-planning and pelvic-floor exercise for all groups. Findings provide support for further investigation of dyadic planning in health-behavior change with short-term mediating effects of behavior-specific social exchange and long-term mediating effects of better self-regulation.

Predictors of subjective age before and after cataract surgery: conscientiousness makes a difference.

This study contributes to research on subjective age by examining the interplay of felt age with health, functional limitations, and personality. Individuals undergoing cataract surgery (N=134; 38 to 92 years of age) provided data for an assessment period of 6 weeks surrounding their scheduled surgery. Conscientiousness and repeated measurements of health indicators, functional limitations, and felt age were included in the analyses. Results indicated that functional limitations may be more important to the construction of felt age than their underlying health-related causes. Moreover, conscientious participants felt younger before and after surgery. Their functional status was less dependent on health than the functional status of less conscientious participants. This moderator effect is discussed along with health-related pathways leading to felt age.

Does social support really help to eat a low‐fat diet? Main effects and gender differences of received social support within the Health Action Process Approach.

BACKGROUND Most theories of health-behavior change focus exclusively on individual self-regulation without taking social factors, such as social support, into account. This studys first aim was to systematically test the added value of received instrumental and emotional social support within the Health Action Process Approach (HAPA) in the context of dietary change. In the social support literature, gender effects emerge with regard to the effectiveness of social support. Thus, a second aim was the examination of gender differences in the association of social support with dietary behavior. METHODS Participants were 252 overweight and obese individuals. At baseline and 12 months later, participants completed questionnaires on HAPA variables; diet-specific received social support and low-fat diet. RESULTS For the prediction of intentions 12 months later, instrumental support was more beneficial for men than for women over and above individual self-regulation. In terms of dietary behavior at T2, a moderate main effect of instrumental support emerged. Moreover, received emotional social support was beneficial for men, but not for women in terms of a low-fat diet 12 months later. CONCLUSIONS Effects of received instrumental social support found in this study provide new evidence for the added value of integrating social support into the HAPA.

The role of action control and action planning on fruit and vegetable consumption

Globally, fruit and vegetable intake is lower than recommended despite being an important component to a healthy diet. Adopting or maintaining a sufficient amount of fruit and vegetables in ones diet may require not only motivation but also self-regulatory processes. Action control and action planning are two key volitional determinants that have been identified in the literature; however, it is not fully understood how these two factors operate between intention and behavior. Thus, the aim of the current study was to explore the roles of action control and action planning as mediators between intentions and dietary behavior. A longitudinal study with three points in time was conducted. Participants (N = 286) were undergraduate students and invited to participate in a health behavior survey. At baseline (Time 1), measures of intention and fruit and vegetable intake were assessed. Two weeks later (Time 2), action control and action planning were assessed as putative sequential mediators. At Time 3 (two weeks after Time 2), fruit and vegetable consumption was measured as the outcome. The results revealed action control and action planning to sequentially mediate between intention and subsequent fruit and vegetable intake, controlling for baseline behavior. Both self-regulatory constructs, action control and action planning, make a difference when moving from motivation to action. Our preliminary evidence, therefore, suggests that planning may be more proximal to fruit and vegetable intake than action control. Further research, however, needs to be undertaken to substantiate this conclusion.

Erectile dysfunction, discrepancy between high prevalence and low utilization of treatment options : results from the 'Cottbus Survey' with 10 000 men

To investigate the age‐stratified prevalence of erectile dysfunction (ED) and its comorbidities, and to assess the population’s knowledge, utilization, and general attitude towards the treatment for ED.

Physical activity among adults with obesity: testing the Health Action Process Approach

OBJECTIVE This study tested the applicability of the Health Action Process Approach (HAPA) in a sample of obese adults in the context of physical activity. METHOD Physical activity was assessed along with motivational and volitional variables specified in the HAPA (motivational self-efficacy, outcome expectancies, risk perception, intention, maintenance self-efficacy, action planning, coping planning, recovery self-efficacy, social support) in a sample of 484 obese men and women (body mass index ≥ 30 kg/m2). RESULTS Applying structural equation modeling, the fit of the HAPA model was satisfactory-χ²(191) = 569.93, p < .05, χ²/df = 2.98, comparative fit index = .91, normed-fit index = .87, and root mean square error of approximation = .06 (90% CI = .06, .07)-explaining 30% of the variance in intention and 18% of the variance in physical activity. Motivational self-efficacy, outcome expectancies, and social support were related to intention. An association between maintenance self-efficacy and coping planning was found. Recovery self-efficacy and social support were associated with physical activity. No relationships were found between risk perception and intention and between planning and physical activity. The assumptions derived from the HAPA were partly confirmed and the HAPA may, therefore, constitute a theoretical backdrop for intervention designs to promote physical activity in adults with obesity.