Fig. 1.

Patient disposition for the total cohort. ^aPatients must also have non-missing date of diagnosis. ^bBaseline measurement is the closest to alglucosidase alfa start date, within a window of 6 months before to 1 month after that date. ^cOnly one baseline record per patient is included in the analysis. ^dAnnual change across all measurements. FVC forced vital capacity, LOPD late-onset Pompe disease