This report investigates the prevalence of chronic pain by analyzing existing studies and identifying critical gaps in current research. The authors reviewed two systematic reviews on pain disorder prevalence, finding them insufficient for their objectives. Thirteen studies were analyzed, revealing significant heterogeneity in the definition of chronic pain (CP) and methodological weaknesses, including unvalidated instruments, lack of confidence intervals, and low response rates. These variations prevented generalization of findings, leading to a strong recommendation for prospective epidemiological studies to accurately estimate CP prevalence in Alberta.

This report critically evaluates existing research on chronic pain prevalence, highlighting significant methodological limitations and definitional inconsistencies across studies. The analysis underscores the difficulty in generalizing findings due to heterogeneity and low response rates, leading to a clear call for more rigorous, prospective epidemiological research. The work serves as a foundational document for understanding the challenges in accurately measuring chronic pain prevalence and guiding future research efforts in this area.