Psychopathology, psychosocial factors and obesity.

AIMS: The aims of this study were to evaluate the association between obesity and socio-demographic and psychopathological variables in a clinical sample of patients referred to a center for the diagnosis and treatment of obesity, compared with a homogeneous sample of normal-weight subjects. METHODS: In the context of a research project regarding obesity and psychopathology, a multivariate logistic regression analysis was used to examine the association between obesity and the demographic and clinical variables, on the basis of the dataset of a consecutive sample of 293 obese patients (48 males, 245 females, mean age: 45.41±13.55, mean body mass index [BMI] 35.6±6.2)compared with a control group of 293 non-obese subjects (48 males, 245 females, mean age 45.66±13.86, mean BMI 21.8±2.06). All subjects were assessed by structured clinical interview, the Structured Clinical Interview for Diagnosis for axis I DSM-IV (SCID-I) and for axis II DSM-IV(SCID-II). RESULTS: Multivariate statistical analysis showed that the status of housewife and the presence of lifetime axis I and II psychiatric diagnosis in general, and of depressive, anxiety, eating and some personality disorders in particular, significantly increased the likelihood of being overweight/obese. The likelihood for different combinations of risk factors increased from a value of 32.3% for an individual not exposed to any risk factor, to a value of 86.7% for those exposed to all risk factors considered. CONCLUSIONS: The presence of an axis I and/or II diagnosis and housewife status are both independently associated with an increased likelihood of being overweight/obese. The interaction of these factors increases this likelihood. Even taking into account the limits of the study, in particular of its cross-sectional nature, these findings may have important implications in both prevention and treatment of obesity.

Psychiatric comorbidity and quality of life in obese patients. Results from a case-control study.

OBJECTIVE: The authors sought to evaluate psychiatric comorbidity, subjective quality of life, and impact of psychopathology on quality of life measures in a clinical sample of patients attending a center for the diagnosis and treatment of obesity compared to a matched sample of non-obese subjects. METHODS: Two hundred ninety-three consecutive obese patients (48 males, 245 females, mean age 45.41 +/- 13.55 yrs; mean BMI 35.60 +/- 6.20) were compared with a control group made of 293 non obese subjects (48 males, 245 females, mean age 45.66 +/- 13.86 yrs; mean BMI 21.8 +/- 2.06); all subjects were interviewed by means of SCID I and SCID II and completed the WHO-QoL-Bref, a self-administered instrument for evaluation of subjective quality of life. RESULTS: Obesity was associated with a significant lifetime major risk both for axis I (OR = 3.47, p = 0.000) and axis II disorders (OR = 2.27, p = 0.000); obesity was also associated with significantly lower measures of subjective quality of life on physical, social, and psychological domains; comorbidity with axis I/II disorders was associated with lower QoL measures on WHO-QoL-Bref, in particular among obese patients. CONCLUSIONS: Obesity is significantly associated with a significant major risk of psychiatric comorbidity and poor quality of life; comorbid mental disorders play a significant role in worsening quality of life of obese patients; a multimodal approach to the treatment of obesity, including psychiatric evaluation and intervention, is needed to improve quality of life of patients.

Obesity and psychopathology. A study of psychiatric comorbidity among patients attending a specialist obesity unit.

AIMS: The study aims to evaluate the frequency of association between Axis I and II disorders according to DSMIVTR criteria and obesity, and use of mental health services in a clinical sample of patients attending a centre for the diagnosis and treatment of Obesity. METHODS: 150 consecutive patients (32 Males, 118 females, mean age 44.6 +/- 14.3 yrs; mean BMI 35.4 +/- 6.2) were interviewed by means of SCID I and SCID II. RESULTS: Lifetime Prevalence of Axis I disorders was 58% (males 50%; females 61%); the highest prevalence rate was found for Anxiety Disorders (approx 35%), whilst 30% of subjects were affected by Mood disorders, chiefly Major Depression (20%), and 18% by Eating Disorders. 28% of obese patients presented a Personality Disorder, 23% of patients being affected both by an Axis I and Axis II disorder. Mood Disorders, in particular Major Depression, were significantly prevalent among female obese. 50% of females and approx 37% males included in the sample had contacted mental health units for treatment. CONCLUSION: Data obtained in the present study confirm the high prevalence rates of mental disorders in obese patients seeking treatment. Specialist units should therefore include thorough psychiatric evaluation of patients as a routine practice.