TY - JOUR AU - Peat, George AU - Thomas, Elaine AU - Handy, June AU - Wood, Laurence AU - Dziedzic, Krysia AU - Myers, Helen AU - Wilkie, Ross AU - Duncan, Rachel AU - Hay, Elaine AU - Hill, Jonathan AU - Lacey, Rosie AU - Croft, Peter PY - 2006 DA - 2006/03/16 TI - The Knee Clinical Assessment Study – CAS(K). A prospective study of knee pain and knee osteoarthritis in the general population: baseline recruitment and retention at 18 months JO - BMC Musculoskeletal Disorders SP - 30 VL - 7 IS - 1 AB - Selective non-participation at baseline (due to non-response and non-consent) and loss to follow-up are important concerns for longitudinal observational research. We investigated these matters in the context of baseline recruitment and retention at 18 months of participants for a prospective observational cohort study of knee pain and knee osteoarthritis in the general population. SN - 1471-2474 UR - https://doi.org/10.1186/1471-2474-7-30 DO - 10.1186/1471-2474-7-30 ID - Peat2006 ER -