Richard B. Lipton|Aubrey Manack Adams|Dawn C. Buse|Kristina Fanning|Michael L. Reed
A Comparison of the Chronic Migraine Epidemiology and Outcomes (CaMEO) Study and American Migraine Prevalence and Prevention (AMPP) Study: Demographics and Headache?Related Disability
Albert Einstein College of Medicine|Montefiore Medical Center|Allergan (United States)|Albert Einstein College of Medicine|Montefiore Medical Center
objective compare methods baseline characteristics american migraine prevalence prevention ampp chronic migraine epidemiology outcomes cameo studies background ampp cameo studies largest longitudinal efforts designed improve understanding episodic chronic migraine united states studies complementary strengths weaknesses methods analysis compares contrasts study methods participation rates ampp cameo studies compare contrast baseline results terms demographic characteristics headache features disability measured migraine disability assessment scale midas among people episodic chronic migraine results ampp cameo sampled panels constructed representative us population ampp study collected data using mailed questionnaire cameo relied web survey methodology response rates higher ampp 648 cameo 165 studies assessed headache features using american migraine studyampp diagnostic module identified persons episodic lt15 headache daysmonth chronic migraine 15 headache daysmonth based international classification headache disorders ampp collected data annually 5 years cameo collected data quarterly 15 months baseline demographic distribution generally similar indicating study broadly representative us population proportion persons migraine chronic migraine similar ampp 66 cameo 88 respondents similar median headache frequency daysmonth sex chronic migraine ampp men 217 women 200 cameo men 200 women 200 episodic migraine ampp men 17 women 20 cameo men 20 women 30 median midas scores substantially higher studies chronic migraine severe disability grade iv ampp men 330 women 450 cameo men 320 women 380 episodic migraine littlemild disability grade iii ampp men 30 women 60 cameo men 40 women 70 rates moderatesevere disability grade iiiiv substantially higher studies chronic migraine ampp men 669 women 789 cameo men 710 women 826 episodic migraine ampp men 230 women 318 cameo men 267 women 379 women men respondents studies experienced moderatesevere disability conclusions ampp cameo longitudinal cohort studies used different methods yielded similar results demographic features headache frequency headacherelated disability studies found severe headacherelated disability chronic versus episodic migraine