OBJECTIVE: To compare secular trends in the age representation of published randomized controlled trials (RCTs) in specialty journals during a period of 20 years. DATA SOURCE: A validated electronic search strategy using Ovid MEDLINE was conducted to identify RCTs published in the years 1985 through 2005. STUDY SELECTION: The publications retrieved were subdivided into age-specific groups: adults, children, both adults and children, and studies with no age group identified. Within 31 specialties, we chose up to 5 specialty journals and 5 pediatric specialty journals. MAIN OUTCOME MEASURE: Number of RCTs targeting children compared with adults over time. Linear trends were identified using regression modeling, and an interaction term was included to compare rates of increase between age groups. RESULTS: A total of 174 unique journals with 43 326 unique RCTs with age-specific categorization were included. Adult RCTs increased by 90.5 RCTs per year (95% confidence interval [CI], 78-103), which was significantly higher than either pediatric RCTs, which rose by 16.9 RCTs per year (95% CI, 12-22) or RCTs involving both children and adults, which rose by 22.7 RCTs per year (95% CI, 10-35). Twenty-four of 31 specialties (77%) demonstrated a greater rise in the number of published RCTs per year involving adults than those enrolling children. CONCLUSION: Adult RCT publications are increasing at a faster rate than pediatric RCTs in almost all specialties.
OBJECTIVE: To compare secular trends in the age representation of published randomized controlled trials (RCTs) in specialty journals during a period of 20 years. DATA SOURCE: A validated electronic search strategy using Ovid MEDLINE was conducted to identify RCTs published in the years 1985 through 2005. STUDY SELECTION: The publications retrieved were subdivided into age-specific groups: adults, children, both adults and children, and studies with no age group identified. Within 31 specialties, we chose up to 5 specialty journals and 5 pediatric specialty journals. MAIN OUTCOME MEASURE: Number of RCTs targeting children compared with adults over time. Linear trends were identified using regression modeling, and an interaction term was included to compare rates of increase between age groups. RESULTS: A total of 174 unique journals with 43 326 unique RCTs with age-specific categorization were included. Adult RCTs increased by 90.5 RCTs per year (95% confidence interval [CI], 78-103), which was significantly higher than either pediatric RCTs, which rose by 16.9 RCTs per year (95% CI, 12-22) or RCTs involving both children and adults, which rose by 22.7 RCTs per year (95% CI, 10-35). Twenty-four of 31 specialties (77%) demonstrated a greater rise in the number of published RCTs per year involving adults than those enrolling children. CONCLUSION: Adult RCT publications are increasing at a faster rate than pediatric RCTs in almost all specialties.
Authors: Nora Fayed; Olaf Kraus de Camargo; Inam Elahi; Ankita Dubey; Ricardo M Fernandes; Amy Houtrow; Eyal Cohen Journal: Qual Life Res Date: 2013-09-13 Impact factor: 4.147
Authors: Florence T Bourgeois; Srinivas Murthy; Catia Pinto; Karen L Olson; John P A Ioannidis; Kenneth D Mandl Journal: Pediatrics Date: 2012-07-23 Impact factor: 7.124
Authors: Simon Bow; Jeffrey Klassen; Annabritt Chisholm; Lisa Tjosvold; Denise Thomson; Terry P Klassen; David Moher; Lisa Hartling Journal: BMC Pediatr Date: 2010-05-20 Impact factor: 2.125