Generalized Estimating Equation Models for the Comparison of Each Repeated Outcome Across Time Between the Control and Intervention Groups
Pain, pain
REGRESSION
Abbreviations: FPS-R, Faces Pain Scale–Revised; T1, during venipuncture; T2, after venipuncture; T3, 30 minutes after venipuncture.Only the model estimates of regression coefficients (β) of the dummy variables for the group (group 0, control [reference]; group 1, intervention), time points (T1, T2, and T3, with the measurement taken 10 minutes before venipuncture as reference), and time points and group interaction terms (group × T1, group × T2, and group × T3) are shown for the generalized estimating equation models.FPS-R pain score was square root transformed before being entered into the GEE analysis.