Limits...
Psychiatric factors and weight loss patterns following gastric bypass surgery in a veteran population.

Rutledge T, Groesz LM, Savu M - Obes Surg (2009)

Bottom Line: Patients were subsequently followed for 24 month to examine changes in weight, body mass index, and risk of weight regain.Nearly half (47.5%) of the sample ceased losing weight after 1 year, with 29.5% regaining weight after this point.Neither psychiatric nor biomedical factors effectively predicted 1-year weight loss totals; however, we observed a significant linear relationship between the number of psychiatric factors and post-1-year weight changes (r = 0.33, p = 0.01).

View Article: PubMed Central - PubMed

Affiliation: VA San Diego Healthcare System, San Diego, CA, USA. Thomas.Rutledge@va.gov

ABSTRACT

Background: Although pre-surgical psychological evaluations are commonly administered to patients considered for weight loss surgeries, the value of these evaluations for predicting weight loss success has been questioned. In this study, we addressed this issue by examining patient's total number of psychiatric indicators rather than individual psychological factors as predictors of weight loss/weight regain.

Methods: Sixty adult veterans completed gastric bypass surgery or laparoscopic gastric banding after completing a multidisciplinary evaluation for surgical clearance, including a psychological assessment. Patients were subsequently followed for 24 month to examine changes in weight, body mass index, and risk of weight regain.

Results: Nearly three fourths of the sample carried either a single (40.0%) or multiple psychiatric diagnoses (33.4%). Nearly half (47.5%) of the sample ceased losing weight after 1 year, with 29.5% regaining weight after this point. Neither psychiatric nor biomedical factors effectively predicted 1-year weight loss totals; however, we observed a significant linear relationship between the number of psychiatric factors and post-1-year weight changes (r = 0.33, p = 0.01). After adjusting for demographic and biomedical factors, patients with two or more psychiatric diagnoses were found to be significantly more likely to experience weight loss cessation or weight regain after 1-year (OR = 6.4, 95% CI = 1.3-12.4) relative to those with zero or one psychiatric diagnosis.

Conclusions: Assessing mental health factors in terms of the total number of psychiatric conditions improved the prediction of weight loss surgery outcomes in this veteran sample. An expanded model for understanding how psychological factors may affect weight loss surgery may improve the utility of pre-bariatric psychological assessments.

Show MeSH

Related in: MedlinePlus

The relationship between patient’s number of psychiatric factors and rates of weight loss cessation or weight regain 12 months following weight loss surgery
© Copyright Policy
Related In: Results  -  Collection


getmorefigures.php?uid=PMC3008931&req=5

Fig1: The relationship between patient’s number of psychiatric factors and rates of weight loss cessation or weight regain 12 months following weight loss surgery

Mentions: As illustrated in Fig. 1, rates of weight loss cessation and weight regain increased in a dose–response pattern in relation to increasing numbers of psychiatric diagnoses. After adjusting for age, gender, race, type of weight loss procedure, and BMI at the time of surgery, patients with two or more psychiatric conditions were approximately six times more likely to either lose no additional weight from the 1-year post surgery or regain weight in comparison to those with no psychiatric diagnoses (OR = 6.4, 95% CI = 1.3–12.4). After covariate adjustment, there was no difference between those with zero versus a single psychiatric diagnosis in terms of weight loss cessation/weight regain (OR = 1.01, 95% CI = 0.25–4.1).Fig. 1


Psychiatric factors and weight loss patterns following gastric bypass surgery in a veteran population.

Rutledge T, Groesz LM, Savu M - Obes Surg (2009)

The relationship between patient’s number of psychiatric factors and rates of weight loss cessation or weight regain 12 months following weight loss surgery
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3008931&req=5

Fig1: The relationship between patient’s number of psychiatric factors and rates of weight loss cessation or weight regain 12 months following weight loss surgery
Mentions: As illustrated in Fig. 1, rates of weight loss cessation and weight regain increased in a dose–response pattern in relation to increasing numbers of psychiatric diagnoses. After adjusting for age, gender, race, type of weight loss procedure, and BMI at the time of surgery, patients with two or more psychiatric conditions were approximately six times more likely to either lose no additional weight from the 1-year post surgery or regain weight in comparison to those with no psychiatric diagnoses (OR = 6.4, 95% CI = 1.3–12.4). After covariate adjustment, there was no difference between those with zero versus a single psychiatric diagnosis in terms of weight loss cessation/weight regain (OR = 1.01, 95% CI = 0.25–4.1).Fig. 1

Bottom Line: Patients were subsequently followed for 24 month to examine changes in weight, body mass index, and risk of weight regain.Nearly half (47.5%) of the sample ceased losing weight after 1 year, with 29.5% regaining weight after this point.Neither psychiatric nor biomedical factors effectively predicted 1-year weight loss totals; however, we observed a significant linear relationship between the number of psychiatric factors and post-1-year weight changes (r = 0.33, p = 0.01).

View Article: PubMed Central - PubMed

Affiliation: VA San Diego Healthcare System, San Diego, CA, USA. Thomas.Rutledge@va.gov

ABSTRACT

Background: Although pre-surgical psychological evaluations are commonly administered to patients considered for weight loss surgeries, the value of these evaluations for predicting weight loss success has been questioned. In this study, we addressed this issue by examining patient's total number of psychiatric indicators rather than individual psychological factors as predictors of weight loss/weight regain.

Methods: Sixty adult veterans completed gastric bypass surgery or laparoscopic gastric banding after completing a multidisciplinary evaluation for surgical clearance, including a psychological assessment. Patients were subsequently followed for 24 month to examine changes in weight, body mass index, and risk of weight regain.

Results: Nearly three fourths of the sample carried either a single (40.0%) or multiple psychiatric diagnoses (33.4%). Nearly half (47.5%) of the sample ceased losing weight after 1 year, with 29.5% regaining weight after this point. Neither psychiatric nor biomedical factors effectively predicted 1-year weight loss totals; however, we observed a significant linear relationship between the number of psychiatric factors and post-1-year weight changes (r = 0.33, p = 0.01). After adjusting for demographic and biomedical factors, patients with two or more psychiatric diagnoses were found to be significantly more likely to experience weight loss cessation or weight regain after 1-year (OR = 6.4, 95% CI = 1.3-12.4) relative to those with zero or one psychiatric diagnosis.

Conclusions: Assessing mental health factors in terms of the total number of psychiatric conditions improved the prediction of weight loss surgery outcomes in this veteran sample. An expanded model for understanding how psychological factors may affect weight loss surgery may improve the utility of pre-bariatric psychological assessments.

Show MeSH
Related in: MedlinePlus