Fig. 2
From: Response rate of patient reported outcomes: the delivery method matters
Response rates. The response rates of the different delivery methods are shown per analysis. In the stringent analysis, patients who requested a different delivery method are considered non-responders. In the intention to treat analysis all patients are analysed in their predefined group and in the as treated in their actual delivery method. * = χ2 p-value < 0.01. ** = χ2 p-value < 0.001