title: Gender differences in effectiveness of the Complete Health Improvement Program (CHIP).
abstract: OBJECTIVE
  To determine the differential effect of gender on outcomes of the Complete Health Improvement Program, a chronic disease lifestyle intervention program.
  
  
  METHODS
  Thirty-day cohort study.
  
  
  METHODS
  One hundred thirty-six venues around North America, 2006 to 2009.
  
  
  METHODS
  A total of 5,046 participants (33.5% men, aged 57.9 ± 13.0 years; 66.5% women, aged 57.0 ± 12.9 years).
  
  
  METHODS
  Diet, exercise, and stress management.
  
  
  METHODS
  Body mass index, diastolic blood pressure, systolic blood pressure, lipids, and fasting plasma glucose (FPG).
  
  
  METHODS
  The researchers used t test and McNemar chi-square test of proportions, at P < .05.
  
  
  RESULTS
  Reductions were significantly greater for women for high-density lipoprotein (9.1% vs 7.6%) but greater for men for low-density lipoprotein cholesterol (16.3% vs 11.5%), total cholesterol (TC) (13.2% vs 10.1%), triglycerides (11.4% vs 5.6%), FPG (8.2% vs 5.3%), body mass index (3.5% vs 3%), diastolic blood pressure (5.5% vs 5.1%), and TC/high-density lipoprotein (6.3% vs 1.4%) but not different for systolic blood pressure (6% vs 5%). The greatest reductions were in participants with the highest baseline TC, low-density lipoprotein, triglycerides, and FPG classifications.
  
  
  CONCLUSIONS
  The Complete Health Improvement Program effectively reduced chronic disease risk factors among both genders, but particularly men, with the largest reductions occurring in individuals at greatest risk. Physiological or behavioral factor explanations, including differences in adiposity and hormones, dietary intake, commitment and social support, are explored. Researchers should consider addressing gender differences in food preferences and eliciting commitment and differential support modes in the development of lifestyle interventions such as the Complete Health Improvement Program.
authors.affiliation: Lifestyle Research Centre, Avondale College of Higher Education, Cooranbong, NSW, Australia. Electronic address: lillian.kent@avondale.edu.au.
authors.forename: Lillian M
authors.initials: LM
authors.lastname: Kent
authors.affiliation: Lifestyle Research Centre, Avondale College of Higher Education, Cooranbong, NSW, Australia.
authors.forename: Darren P
authors.initials: DP
authors.lastname: Morton
authors.affiliation: Lifestyle Research Centre, Avondale College of Higher Education, Cooranbong, NSW, Australia.
authors.forename: Paul M
authors.initials: PM
authors.lastname: Rankin
authors.affiliation: Medical Nutrition Therapy Northwest, Clackamas, OR.
authors.forename: John E
authors.initials: JE
authors.lastname: Gobble
authors.affiliation: Lifestyle Medicine Institute, Loma Linda, CA.
authors.forename: Hans A
authors.initials: HA
authors.lastname: Diehl
mesh_terms: D000328:Adult; D000368:Aged; D015331:Cohort Studies; D015444:Exercise; D005260:Female; D005500:Follow-Up Studies; D007722:Health Knowledge, Attitudes, Practice; D006293:Health Promotion; D006801:Humans; D008019:Life Style; D008297:Male; D008875:Middle Aged; D009656:North America / Q000453:epidemiology; D018673:Nutrition Policy; D050177:Overweight / Q000453:epidemiology / Q000517:prevention & control*; D010353:Patient Education as Topic; D015397:Program Evaluation; D033303:Protestantism; D012307:Risk Factors; D012727:Sex Characteristics; D013315:Stress, Psychological / Q000453:epidemiology / Q000517:prevention & control*; D014741:Video Recording
keywords: chronic disease; health behavior; men; risk factors; women