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Pre-operative Bariatric Clinic Attendance Is a Predictor of Post-operative Clinic Attendance and Weight Loss Outcomes

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Abstract

Aim

Our primary aim was to determine whether non-attendance at pre-operative clinics were associated with non-attendance at post-operative clinics and its influence on weight loss. We also sought to examine the relationship between gender, ethnicity and post-operative clinic attendance with respect to weight loss post-bariatric surgery.

Methods

A retrospective audit was performed for patients undertaking the bariatric surgery program at the Auckland City Hospital between 2013 and 2016.

Results

One hundred and eighty-four patients completed our program, with a mean age of 46.1 years. Mean weight at commencement was 133.3 kg, with a BMI of 47.4. At 2 years follow-up (n = 143), excess weight loss was 70.8% following RYGB and 68.0% following LSG (p = 0.5743). More patients attended all pre-operative than post-operative clinics (67.4% vs 37.5% p = < 0.001). One pre-operative clinic non-attendance was associated with less weight loss at 2 years and it increases the risk of missing at least 50% of post-operative clinics with a risk ratio of 2.73, p = 0.005. Non-attendance of at least 50% of post-operative clinics was also associated with less weight loss at 2 years (33.4 kg vs 44.3 kg, p = 0.040). Although Maori and Pacific Islanders more frequently missed > 50% of post-operative clinics, weight loss was similar between European, Maori and Pacific Islander populations (2-year weight loss 44.2 kg vs 40.74 kg vs 44.1 kg, respectively, p = 0.8192).

Conclusion

Pre-operative clinic non-attendance helps predict post-operative clinic non-attendance. Missing any pre-operative clinics and at least 50% of scheduled post-operative clinics is associated with poorer weight loss outcomes.

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Authors and Affiliations

  1. Department of Surgery, Auckland City Hospital, 2 Park Rd, Grafton, Auckland, 1023, New Zealand

    Hamish Shilton, Yang Gao, Nicholas Evennett, Rishi Ram & Grant Beban

  2. Monash Cardiovascular Research Centre, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia

    Nitesh Nerlekar

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  1. Hamish Shilton
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Correspondence to Hamish Shilton.

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Conflict of Interest

The authors declare that they have no conflict of interest.

Ethical Statement

The research protocol and ethical review paperwork were reviewed by the Auckland District Health Board research committee. It was declared to abide by the definition of an audit and by New Zealand law, did not require further ethical board approval.

Human/Animal Rights Statement

There were no procedures performed on humans or animals for the purpose of this audit.

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No identifiable personal data was collected for this research.

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Shilton, H., Gao, Y., Nerlekar, N. et al. Pre-operative Bariatric Clinic Attendance Is a Predictor of Post-operative Clinic Attendance and Weight Loss Outcomes. OBES SURG 29, 2270–2275 (2019). https://doi.org/10.1007/s11695-019-03843-2

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  • DOI: https://doi.org/10.1007/s11695-019-03843-2

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