Fig. 4

Median TSQM-9 selected item scores (range: 0–8) from the North American study from pre-Ig20Gly period to the end of the study for Ig20Gly therapy by prior treatment setting, age group, and prior route of administration. Ig20Gly, immune globulin subcutaneous (human) 20%; IVIG, intravenous immunoglobulin; SCIG, subcutaneous immunoglobulin; TSQM, Treatment Satisfaction Questionnaire for Medication. Note: Bar charts indicate the median score and interquartile range (error bars) for each sample or subgroup in the pre-Ig20Gly period and at the end of the study. The median ∆ value is the median within-patient difference in scores between the end of the pre-Ig20Gly period and the end of the study. P values indicate statistical significance for differences in distributions of scores between the pre-Ig20Gly period and the end of the study assessed using the Wilcoxon signed-rank test