Iris Kanera

73 The Kanker Nazorg Wijzer protocol 3 with trial information and a username and password for first login, (2) an informed consent form with return envelope, (3) an information brochure concerning Medical Research, (4) a short manual on how to use the KNW, and (5) a small card with contact details and space where participants could write down their new username and password. A reminder was send after two weeks. Patients who agreed to participate were requested to sign the informed consent form and return it to the Open University of the Netherlands. Patients who participated in the research but did not return the consent form were contacted to do so. If they did not return the informed consent after several reminders, they were excluded from evaluation. After online registration, participants were randomly assigned to either the intervention group or the waiting list control group. Both groups had to fill in a questionnaire at four time points: At baseline (T0), after three months (T1), after six months (T2), and after 12 months (T3). T1 aimed to measure possible mediating variables, while T2 and T3 aimed to measure the short- and long-term effectiveness of the intervention respectively. The intervention group had six months access to the KNW directly after baseline. The waiting list control group had access to the intervention after T3. Several methods were used to increase the response rate. First, several automated e-mail reminders were sent for each measurement. Second, in the baseline measurement, participants could leave their telephone number so we could contact them concerning the research. When we noted that participants had not reacted to the e-mail reminders, we contacted them through telephone as a final reminder. Third, in the e-mail reminders participants were explained that they would receive a small token of appreciation at the end of the trial. That is, participants received a book voucher with a value of € 10 for trial participation. Measurements The primary outcomes for the evaluation of the KNW comprise psychosocial well-being and lifestyle outcomes. Measuring psychosocial well-being comprised assessment of QoL (Aaronson et al., 1993), psychological distress (Bjelland, Dahl, Tangen Haug, & Neckelmann, 2002; Zigmond & Snaith, 1983), mental adjustment to cancer (Watson & Homewood, 2008), fatigue (Vercoulen et al., 1994), work limitations (Burton, Chen, Conti, Pransky, & Edington, 2004; Burton, Pransky, Conti, Chen, & Edington, 2004; Lerner et al., 2001), and social support (van Sonderen, 2012). Measuring lifestyle comprised assessment of PA (Wendel-Vos, Schuit, Saris, & Kromhout, 2003), food consumption (Van den Brink et al., 2005), and smoking behavior (Mudde et al., 2006). Secondary outcomes included measures that were assumed to moderate or mediate the effects of the primary outcomes, such as resilience (Smith et al., 2008), self-control (Tangney, Baumeister, & Boone, 2004), personal control (Moss-Morris et al., 2002), problem solving skills (D’Zurilla, Nezu, & Maydeu-Olivares, 2002; Dreer et al., 2009),