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Table 5 Impact of the patient decision aid (n = 281)

From: Evaluation of a patient decision aid for initiating disease modifying anti-rheumatic drugs

  Comparison group*
n = 158
Intervention group*
n = 123
P a
Perceived role in decision-making (CPS), % (n)
 (Mostly) doctor 25 % (39) 14 % (17)  
 Shared 70 % (111) 73 % (90)  
 (Mostly) patient 5 % (8) 13 % (16) 0.01b
Satisfaction with decision and decision-making process
 Satisfaction with participation (range 1–5) 4.6 ± 0.6 (144) 4.6 ± 0.6 (115) n.s.
 Satisfaction with received information (range 0–21) 15.7 ± 4.9 (130) 15.3 ± 5.7 (106) n.s.
 Informed choice (DES) (range 1–5) 4.2 ± 1.0 (145) 4.3 ± 0.9 (115) n.s.
 Decision-control (DES) (range 1–5) 4.6 ± 0.5 (146) 4.6 ± 0.7 (114) n.s.
 Satisfaction-uncertainty (DES) (range 1–5)c 4.0 ± 0.8 (147) 4.1 ± 0.7 (116) n.s.
 Consistency with personal values (SWD) 4.2 ± 1.0 (148) 4.5 ± 0.8 (112) 0.02
Other categories
 Beliefs about medication - necessity (range 5–25) 18.6 ± 4.5 (137) 19.6 ± 4.6 (87) n.s.
 Beliefs about medication - concerns (range 5 − 25) 13.8 ± 4.1 (136) 12.9 ± 4.9 (90) n.s.
 Medication adherence (MMAS) (range 0 − 8)d 7.2 ± 1.4 (129) 7.2 ± 1.4 (102) n.s.
 Trust in physician (CPQ) (range 1 − 5) 4.8 ± 0.5 (155) 4.8 ± 0.4 (120) n.s.
 Number of treatment options suggested by rheumatologist, % (n)
 1 option 88 % (137) 54 % (60)  
  > 1 option 12 % (18) 46 % (51) 0.000
  1. *Values are the mean ± standard deviation (number) unless otherwise indicated. aTested using the t test unless otherwise indicated. bTested using the Pearson chi-square test. cHigher scores indicate less uncertainty and higher satisfaction. dAdherence not assessed in patients that get professional assistance with administrating injections or go to the hospital for intravenous medication
  2. n.s. not significant (p > 0.05), CPS Control Preference Scale [5, 29], DES Decision Evaluation Scales [35], SWD Satisfaction With Decision scale [36], BMQ Beliefs about Medication Questionnaire [37], MMAS Morisky Medication Adherence Scale [38], CPQ Cologne Preference Questionnaire [30, 31]