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Attendance at Clinical Visits Predicts Weight Loss After Gastric Bypass Surgery

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Abstract

Background

Clinicians working with patients who undergo bariatric surgery have found loss to follow-up challenging; however, the impact of this factor on postsurgical weight loss has not been adequately examined. The purpose of this study was to determine whether patients who returned for office visits after their gastric bypass (GBP) lost more weight than those who did not.

Methods

All patients treated with GBP by a single surgeon during 2003 were eligible. Measured weights were obtained from surgical and local physician records over 24 months after GBP. Attender status was defined by whether patients attended the 12-month post-GBP visit, and number of visits attended was recorded. When measured weights were not available at 1.5, 6, 12, or 24 months, the previous measured weight was carried forward. Weight loss over time was compared by attender group and by visit number using mixed models and ≥50% excess weight loss (EWL) by logistic regression.

Results

Weight loss was greater in attenders and men (both p < 0.05). Increasing number of visits and BMI were associated with increased kilogram weight loss and %EWL (both p < 0.001). The odds of ≥50% EWL were 3.3-fold greater at 12 months and 2.8-fold greater at 24 months with each unit increase in visit number (both p = 0.001).

Conclusions

For optimal weight loss over 24 months after GBP, follow-up is important. Further studies are needed to develop strategies that will optimize follow-up and weight loss, and to evaluate whether a threshold number of clinic visits can be established.

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Acknowledgements

This study was funded by a pilot grant from the University of Pennsylvania. The authors appreciate the assistance of Tyler McCauley, Julie Madaras, and Kristin Buxton for consenting patients and data collection.

Competing Interests

None of the authors has financial conflicts of interest regarding this research to declare.

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Authors and Affiliations

  1. University of Pennsylvania School of Nursing, University of Pennsylvania, 418 Curie Boulevard, Philadelphia, PA, 19104-4217, USA

    Charlene W. Compher, Alexandra Hanlon, Youjeong Kang & Liza Elkin

  2. University of Pennsylvania School of Medicine, Philadelphia, PA, 19104, USA

    Noel N. Williams

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  1. Charlene W. Compher
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  2. Alexandra Hanlon
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  3. Youjeong Kang
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  4. Liza Elkin
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  5. Noel N. Williams
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Correspondence to Charlene W. Compher.

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Compher, C.W., Hanlon, A., Kang, Y. et al. Attendance at Clinical Visits Predicts Weight Loss After Gastric Bypass Surgery. OBES SURG 22, 927–934 (2012). https://doi.org/10.1007/s11695-011-0577-9

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  • DOI: https://doi.org/10.1007/s11695-011-0577-9

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