Portion size: review and framework for interventions

The prevalence of overweight and obesity has increased. A strong environmental factor contributing to the obesity epidemic is food portion size. This review of studies into the effects of portion size on energy intake shows that increased food portion sizes lead to increased energy intake levels. Important mechanisms explaining why larger portions are attractive and lead to higher intake levels are value for money and portion distortion. This review also shows that few intervention studies aiming to reverse the negative influence of portion size have been conducted thus far, and the ones that have been conducted show mixed effects. More intervention studies targeted at portion size are urgently needed. Opportunities for further interventions are identified and a framework for portion size interventions is proposed. Opportunities for intervention include those targeted at the individual as well as those targeted at the physical, economic, political and socio-cultural environment

Cervical cancer survivors’ and partners’ experiences with sexual dysfunction and psychosexual support

Cervix cancerGynecolog

View the label before you view the movie: A field experiment into the impact of Portion size and Guideline Daily Amounts labelling on soft drinks in cinemas

<p>Abstract</p> <p>Background</p> <p>Large soft drink sizes increase consumption, and thereby contribute to obesity. Portion size labelling may help consumers to select more appropriate food portions. This study aimed to assess the effectiveness of portion size and caloric Guidelines for Daily Amounts (GDA) labelling on consumers' portion size choices and consumption of regular soft drinks.</p> <p>Methods</p> <p>A field experiment that took place on two subsequent evenings in a Dutch cinema. Participants (n = 101) were asked to select one of five different portion sizes of a soft drink. Consumers were provided with either portion size and caloric GDA labelling (experimental condition) or with millilitre information (control condition).</p> <p>Results</p> <p>Labelling neither stimulated participants to choose small portion sizes (<it>OR </it>= .75, <it>p </it>= .61, CI: .25 - 2.25), nor did labelling dissuade participants to choose large portion sizes (<it>OR </it>= .51, <it>p </it>= .36, CI: .12 - 2.15).</p> <p>Conclusions</p> <p>Portion size and caloric GDA labelling were found to have no effect on soft drink intake. Further research among a larger group of participants combined with pricing strategies is required. The results of this study are relevant for the current public health debate on food labelling.</p

From the point-of-purchase perspective: A qualitative study of the feasibility of interventions aimed at portion-size

Objectives Food portion-sizes might be a promising starting point for interventions targeting obesity. The purpose of this qualitative study was to assess how representatives of point-of-purchase settings perceived the feasibility of interventions aimed at portion-size.Methods Semi-structured interviews were conducted with 22 representatives of various point-of-purchase settings. Constructs derived from the diffusion of innovations theory were incorporated into the interview guide. Each interview was recorded and transcribed verbatim. Data were coded and analysed with Atlas.ti 5.2 using the framework approach.Results According to the participants, offering a larger variety of portion-sizes had the most relative advantages, and reducing portions was the most disadvantageous. The participants also considered portion-size reduction and linear pricing of portion-sizes to be risky. Lastly, a larger variety of portion-sizes, pricing strategies and portion-size labelling were seen as the most complex interventions. In general, participants considered offering a larger variety of portion-sizes, portion-size labelling and, to a lesser extent, pricing strategies with respect to portion-sizes as most feasible to implement.Conclusions Interventions aimed at portion-size were seen as innovative by most participants. Developing adequate communication strategies about portion-size interventions with both decision-makers in point-of-purchase settings and the general public is crucial for successful implementation.Obesity Food portion-size Intervention

Qualitative accounts of patients' determinants of vaginal dilator use after pelvic radiotherapy

Introduction: Treatment with pelvic external beam radiotherapy with brachytherapy (EBRT/BT) for gynecological cancers may cause sexual dysfunction because of vaginal shortening and tightening. Regular vaginal dilator use is thought to reduce vaginal shortening and/or tightening, but compliance is poor. Aims: This study identified determinants of patients' adherence with dilator use after EBRT/BT. Methods: Semi-structured interviews were conducted with 30 women, aged 32-67 years, treated with EBRT/BT for gynecological cancers at two university medical centers in the past 36 months. Transcriptions were coded and analyzed with N-Vivo software. Main Outcome Measures: Determinants of dilator use were clustered based on the Health Action Process Approach, which describes (i) motivation processes that lead to a behavioral intention and (ii) volition processes that lead to the initiation or maintenance of actual behavior. Results: Almost all women attempted to perform long-term regular vaginal dilator use. Intended dilator use was determined by the expectation that it would prevent the development of vaginal adhesions and stenosis. Planning dilator use and making it part of a routine, using it under the shower, using lubricants, a smaller dilator size, or vibrators helped women. Others reported a lack of time or privacy, forgetting, or feeling tired. Women self-regulated dilator use by rotating the dilator and timing dilator use. Influencing factors were negative emotions regarding dilator use or its hard plastic design, (being anxious for) pain or blood loss, and an association with EBRT/BT. Some women mentioned a lack of instrumental support, for example, lubricants. Others received reassurance through informational support or were supported socially. Conclusion: Motivation and volition processes that determined dilator use were identified and used in the development of a sexual rehabilitation intervention. It is important to provide sufficient patient information and support, and enlarge patients' perceived self-efficacy

Long-term Pelvic Floor Function and Quality of Life After Radical Surgery for Cervical Cancer: A Multicenter Comparison Between Different Techniques for Radical Hysterectomy With Pelvic Lymphadenectomy

This study aimed to compare urinary and bowel symptoms and quality of life (QoL) among women treated with a Wertheim-Meigs (WM, type III) or Wertheim-Okabayashi (WO, type IV) radical hysterectomy with pelvic lymphadenectomy for early-stage cervical cancer. In this cross-sectional observational study, patients treated with a WO or a (nerve sparing) WM radical hysterectomy (with or without adjuvant radiotherapy) between January 2000 and December 2010 in the Center for Gynaecological Oncology Amsterdam or Leiden University Medical Center were included. To assess QoL, urinary and bowel symptoms we used the EORTC QLQ-C30, EORTC QLQ-CX24, and Leiden Questionnaire. We performed a multivariate analysis to identify factors associated with urinary symptoms. Two hundred sixty-eight women were included (152 WO and 116 WM). Quality of life was not significantly different in patients treated by WO or WM. Urinary symptoms were more often reported by patients in the WO group compared to the WM group: "feeling of urine retention" (53% vs 32%), "feeling less/no urge to void" (59% vs 14%), and "timed voiding" (49% vs 10%). With regard to bowel symptoms, there was no difference between both. Multivariate analysis showed that surgical technique was an independent factor for differences in urinary symptoms. Patients undergoing more radical surgery for early-stage cervical cancer report significantly more urinary dysfunction, whereas bowel function and health-related QoL are not decrease