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Obesity and the relationship with positive and negative affect

Version 2 2024-05-30, 15:35
Version 1 2014-10-28, 10:08
journal contribution
posted on 2024-05-30, 15:35 authored by Julie PascoJulie Pasco, Lana WilliamsLana Williams, Felice JackaFelice Jacka, SL Brennan, Michael BerkMichael Berk
Objective: To examine the cross-sectional association between overweight and obesity and positive and negative affect. Method: Participants included 273 women, aged 29–84 years, who were enrolled in the Geelong Osteoporosis Study (GOS). Weight and height were measured and overweight and obesity determined from body mass index (BMI; kg/m2) according to WHO criteria. Medical history and lifestyle exposures were assessed by questionnaire. Positive and negative affect scores were derived using the validated 20-item Positive and Negative Affect Schedule (PANAS) and categorised into tertiles. Results: A pattern of greater negative affect scores was observed for increasing levels of BMI. Setting normal weight as the referent category, the odds for having a negative affect score in the highest tertile were sequentially increased for women who were overweight (OR = 1.31, 95% CI: 0.72–2.40) and obese (OR = 1.95, 95% CI: 1.02–3.73). The association between obesity and increased negative affect was diminished by adjusting for physical illness (adjusted OR = 1.76, 95% CI: 0.91–3.42). These associations were not substantially influenced by positive affect score or other exposures. No association was detected between BMI categories and positive affect scores. Conclusions: We report data suggesting that obesity is associated with greater negative affect scores, reflecting emotions such as distress, anger, disgust, fear and shame, and that this association is attenuated by physical illness. Further investigations are now warranted to explore possible mechanistic interplay between pathological, neurobiological and psychosocial factors.

History

Journal

Australian and New Zealand Journal of Psychiatry

Volume

47

Pagination

477-482

Location

England

ISSN

0004-8674

eISSN

1440-1614

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2013, Sage Publishing

Issue

5

Publisher

SAGE PUBLICATIONS LTD