Integrated health article
Patient expectations of bariatric surgery are gender specific—a prospective, multicenter cohort study

https://doi.org/10.1016/j.soard.2014.02.040Get rights and content

Abstract

Background

The effect of bariatric surgery on weight loss and improvement of co-morbidities is no longer doubted. However, little attention has been given to the treatment goals from the patient’s point of view (patient expectations). The objective of this study was to examine patients’ expectations of bariatric surgery and identify gender differences.

Methods

Bariatric patients were asked to complete a questionnaire. Statistical analysis was performed using chi-square, Pearson correlation coefficient, and Wilcoxon rank sum test.

Results

Overall, 248 patients participated in this study (69.4% females). The male patients (45.2 yr, SD±11.1) were significantly older than the female (41.8 yr, SD±12.0; P = .04) and suffered significantly more often from diabetes, hypertension, hypercholesterolemia, and sleep apnea. One hundred thirty patients (52.4%) expected to lose at least 45 kg and 39 patients (15.7%)>70 kg. The mean expected excess weight loss was 71.8%. Females expected significantly more often that surgery alone would induce weight loss (P = .03). “Improved co-morbidity” was by far the highest ranked parameter.

Conclusion

The male bariatric surgery patients were older and suffered from more co-morbidities. Most of the patients had unrealistic weight loss goals and overestimated the effect of the surgical intervention. However, for both female and male patients, “improved co-morbidity” was the most important issue.

Section snippets

Methods

Bariatric patients were invited to complete a questionnaire about their expectations. Patients were deemed eligible for bariatric surgery according to the most recent S3 German guidelines. To qualify, the patients must have exhausted conservative treatment for at least 6 months, undergone a psychosomatic and endocrinologic evaluation, have a BMI of>35 kg/m2 with at least 1 co-morbidity such as diabetes mellitus, hypertension or sleep apnea, or a BMI of 40 kg/m2 or more. Generally, insurance

Results

Overall, 248 patients participated in this study (Heidelberg, 166 patients; Hamburg, 72 patients; Karlsruhe, 10 patients) and 69.4% were females. The mean age was 42.8 years (SD±11.8 years). The mean BMI was 48.4 kg/m2 (SD±8.0 kg/m2). There were no significant differences in BMI between the male and female patients (Table 1). However, the male patients (45.2 yr, SD±11.1) were significantly older than the females (41.8 yr, SD±12.0; P = .04, Table 1). There were no significant gender differences

Discussion

Studies dealing with bariatric procedures mainly focus on endpoints such as EWL or diabetes remission. Little attention has been given to the question of whether such endpoints really matter from the patient’s perspective. It may be possible to evaluate the relevance of a given endpoint from a patient’s point of view by using questionnaires to ask patients to rank possible outcomes [31], [38], [39]. However, in this field, which is evolving so rapidly, the required scientific analysis

Conclusion

In this descriptive survey, carried out on a convenience sample, male bariatric patients were older and suffered from more co-morbidities than female patients. Most patients had unrealistic weight loss goals and overestimated the effect of the surgical intervention on their weight loss. However, both female and male patients, and particularly patients with diabetes, ranked the parameter “improved co-morbidity” at the top position.

Disclosures

Lars Fischer, Johannes Sander, Alexander Ernst and Rune Sandbu were participants in the second European Obesity Academy, which was sponsored by Johnson&Johnson. Fifty of the here presented 115 female patients will be included in a study examine the expectations of female patients in 5 northern European countries.

References (47)

  • L.M. Carlsson et al.

    Bariatric surgery and prevention of type 2 diabetes in Swedish obese subjects

    N Engl J Med

    (2012)
  • H. Buchwald et al.

    Weight and type 2 diabetes after bariatric surgery: systematic review and meta-analysis

    Am J Med

    (2009)
  • H. Buchwald et al.

    Bariatric surgery: a systematic review and meta-analysis

    JAMA

    (2004)
  • D. Hauner et al.

    The effect of overweight and nutrition on prognosis in breast cancer

    Dtsch Arztebl Int

    (2011)
  • Z. Cheraghi et al.

    Effect of body mass index on breast cancer during premenopausal and postmenopausal periods: a meta-analysis

    PLoS One

    (2012)
  • J.L. Colquitt et al.

    Surgery for obesity

    Cochrane Database Syst Rev

    (2009)
  • L. Sjostrom

    Review of the key results from the Swedish Obese Subjects (SOS) trial: a prospective controlled intervention study of bariatric surgery

    J Intern Med

    (2013)
  • H. Buchwald et al.

    Trends in mortality in bariatric surgery: a systematic review and meta-analysis

    Surgery

    (2007)
  • G. Mingrone et al.

    Bariatric surgery versus conventional medical therapy for type 2 diabetes

    N Engl J Med

    (2012)
  • B.P. Muller-Stich et al.

    Gastric bypass leads to improvement of diabetic neuropathy independent of glucose normalization-results of a prospective cohort study (DiaSurg 1 Study)

    Ann Surg

    (2013)
  • H.G. Kenngott et al.

    DiaSurg 2 trial - surgical vs. medical treatment of insulin-dependent type 2 diabetes mellitus in patients with a body mass index between 26 and 35 kg/m2: study protocol of a randomized controlled multicenter trial - DRKS00004550

    Trials

    (2013)
  • N. Scopinaro et al.

    Effects of biliopanceratic diversion on type 2 diabetes in patients with BMI 25 to 35

    Ann Surg

    (2011)
  • P.R. Schauer et al.

    Bariatric surgery versus intensive medical therapy in obese patients with diabetes

    N Engl J Med

    (2012)
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