Darcy Ummels

50 | Chapter 3 interviewees and participants in focus group discussions). Transferability was examined through a thick description of our study population and the study process. 31 Results The framework analysis resulted in eight categories: 1) purchase of the activity trackers, 2) instruction, 3) characteristics of the activity tracker, 4) correct functioning, 5) sharing data, 6) privacy, 7) use of the activity tracker, and 8) interest in feedback. The number of quotes per (sub)category is presented in Supplement File S3.2. Participants A total of 23 participants were interviewed individually, and six participants participated in the focus group discussion (Table 3.2); all wore the activity tracker for between two and eight weeks. The Activ8 was the most used activity tracker (n=6), followed by the Fitbit Flex (n=5), Fitbit One (n=5), Digiwalker CW ‐ 700 (n=4), UP 24 (n=4), Walking Style X (n=4), the Moves app (n=2) and, the Lumoback (n=1). Four participants used two different activity trackers, two participants tested three different activity trackers, and one participant tested four different activity trackers. Table 3.2 Demographic and health characteristics of included participants. Characteristics Participants (n=29) Gender, n male (%) 7 (27) Age (years), median (range) 55 (22 ‐ 78) Education, n (%) Secondary Education 6 (26) College 9 (39) University 8 (35) Diagnosed disease, n (%) Cardiovascular Disease 1 (4) COPD 2 (8) Diabetes Mellitus 1 (4) Cancer 5 (20) Osteoarthritis 4 (16) Chronic Pain 10 (40) Combination 2 (8) Comorbidity (CIRS 0 ‐ 52), median (range) 5 (0 ‐ 10) Physical activity* Sufficiently active, n (%) 14 (59) Insufficiently active, n (%) 10 (41) * Physical activity was measured by the physical activity assessment tool to determine whether the participants was sufficiently active. 35 There was three missing values for gender (10,3%), age (10,3%), six missing values for education (20.6%), four missing values for diagnosed disease (13.7%) and CIRS score (13.7%) and, five missing values for physical activity assessment tool (17.2%). COPD: Chronic Obstructive Lung Disease; CIRS: Cumulative Illness Rating Scale.