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34 Chapter 2 Men with a preference for a PDM role reported having received less information, having perceived this information as less helpful, and reported lower satisfaction with information received. Across preferred decision-making roles there was no statistically significant difference in the desire for more or less information (Table 2). Effect sizes when comparing all three groups were small (table 2) 24 . When directly comparing PDM and ADM role preference groups, effect sizes range from d=.32 to d=.56, indicating a medium effect size 24 . Time since diagnosis was not correlated to satisfaction with information received or any of the EORTC-INFO-25 subscales (all with p >.05). Five of the 17 analyzed HRQoL subscales showed a statistically significant difference across decision-making role preferences (table 2). Most relevant differences were found on Physical functioning, which was lower for men with a PDM role preference and sexual activity, which was higher for men with an ADM role preference (all with p <.05). As the cT1 and cT2 tumor stages were equally distributed among the subgroups we decided to combine both tumor stages in further analyses. 3.2 Multivariable linear regression Controlled for age, education, physical functioning and sexual activity, the preference for a PDM role was associated withmore negative evaluations of the amount of information provided on specific content (medical tests, treatments and other services), the overall amount of received written information, and the helpfulness and satisfaction of the received information (Table 3). To test the assumption if specific treatments affected outcomes, analyses were also conducted per treatment group. This did not yield treatment specific outcomes (data not shown). Moreover, no hospital specific effects were found on the distribution of decision-making role preferences or the evaluation of information received (data not shown).