title: Impact of overweight on the risk of developing common chronic diseases during a 10-year period.
abstract: BACKGROUND
  Overweight adults are at an increased risk of developing numerous chronic diseases.
  
  
  METHODS
  Ten-year follow-up (1986-1996) of middle-aged women in the Nurses' Health Study and men in the Health Professionals Follow-up Study to assess the health risks associated with overweight.
  
  
  RESULTS
  The risk of developing diabetes, gallstones, hypertension, heart disease, and stroke increased with severity of overweight among both women and men. Compared with their same-sex peers with a body mass index (BMI) (calculated as weight in kilograms divided by the square of height in meters) between 18.5 and 24.9, those with BMI of 35.0 or more were approximately 20 times more likely to develop diabetes (relative risk [RR], 17.0; 95% confidence interval [CI], 14.2-20.5 for women; RR, 23.4; 95% CI, 19.4-33.2 for men). Women who were overweight but not obese (ie, BMI between 25.0 and 29.9) were also significantly more likely than their leaner peers to develop gallstones (RR, 1.9), hypertension (RR, 1.7), high cholesterol level (RR, 1.1), and heart disease (RR, 1.4). The results were similar in men.
  
  
  CONCLUSIONS
  During 10 years of follow-up, the incidence of diabetes, gallstones, hypertension, heart disease, colon cancer, and stroke (men only) increased with degree of overweight in both men and women. Adults who were overweight but not obese (ie, 25.0 < or = BMI < or = 29.9) were at significantly increased risk of developing numerous health conditions. Moreover, the dose-response relationship between BMI and the risk of developing chronic diseases was evident even among adults in the upper half of the healthy weight range (ie, BMI of 22.0-24.9), suggesting that adults should try to maintain a BMI between 18.5 and 21.9 to minimize their risk of disease.
authors: Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, 181 Longwood Ave, Boston, MA 02115, USA. Alison.Field@channing.harvard.edu
authors: A E
authors: AE
authors: Field
authors: E H
authors: EH
authors: Coakley
authors: A
authors: A
authors: Must
authors: J L
authors: JL
authors: Spadano
authors: N
authors: N
authors: Laird
authors: W H
authors: WH
authors: Dietz
authors: E
authors: E
authors: Rimm
authors: G A
authors: GA
authors: Colditz
mesh_terms: D015992:Body Mass Index; D002769:Cholelithiasis / Q000209:etiology; D002908:Chronic Disease; D003920:Diabetes Mellitus / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006331:Heart Diseases / Q000209:etiology; D006801:Humans; D006973:Hypertension / Q000209:etiology; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D012307:Risk Factors