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Table 4 DCE patient survey respondents: DCE responses, individual characteristics and ‘current’ situation at 24-month follow-up

From: What, who and when? Incorporating a discrete choice experiment into an economic evaluation

  All Medman trial participants Trial groups Intervention subgroups
  Intervention and control together Intervention Control   Intervention still receiving at 24 months Intervention not receiving at 24 months  
N (%)a N (%)a N (%)a P valueb N (%)a N (%)a P valueb
DCE completed 714 (100) 469 (100) 245 (100) - 247 (100) 222 (100) -
DCE passing rationality tests 676 (95) 441 (94) 235 (96) - 232 (94) 208 (94) -
DCE eligible for analysisc 554 (78) 364 (77.8) 190 (77.5) - 188 (76.1) 176 (79.3) -
Gender (male) 387 (54) 250 (69) 137 (72) 0.40 125 (66) 125 (71) 0.35
Age (mean (SD)) 70.595 (8.31) 70.44 (8.53) 70.75 (8.09) 0.67 72.00 (8.23) 68.77 (8.55) <0.01
Income     0.08    <0.01
-Up to £20,000 366 (51) 249 (79) 117 (71) 152 (87) 97 (69)
-£20,000-£40,000 100 (14) 57 (18) 43 (26) 20 (11) 37 (26)
-Over £40,000 14 (2) 9 (3) 5 (3) 2 (1) 7 (5)
‘Current’ situation
Advice     0.98    <0.01
- No advice 230 (32) 150 (41) 80 (42) 36 (19) 114 (65)
-On medicines only 175 (25) 114 (31) 61 (32) 79 (42) 35 (20)
- On health only 9 (1) 6 (2) 3 (2) 1 (1) 5 (3)
-On Medicines/Health/life 140 (20) 94 (26) 46 (24) 72 (38) 22 (13)
Privacy (yes) 308 (43) 215 (59) 93 (49) 0.23 146 (78) 69 (39) <0.01
Replies (yes) 267 (37) 186 (51) 81 (43) 0.06 130 (69) 56 (32) <0.01
Chance     0.34    <0.01
-Very poor 14 (2) 9 (2) 5 (3) 3 (2) 6 (3)
-Poor 204 (29) 140 (39) 64 (34) 93 (50) 47 (27)
-Good 297 (42) 190 (52) 107 (56) 88 (47) 102 (58)
-Very Good 36 (5) 23 (6) 13 (7) 3 (2) 20 (11)
Time (median [IQR]) 15 [10–30] 15 [10–30] 15 [10–30] 1 15 [10–25] 17.5 [10–30] 0.03
Cost (median [IQR]) 0 [0–0.58] 0 [0–0.58] 0 [0–0.8] 0.53 0 [0–0.4] 0 [0–0.8] 0.03
  1. a Percentages refer to the respondents completing each question; b Differences between groups at 24-month follow-up were tested using: independent t test statistics (continuous normally distributes data); Mann–Whitney test (continuous not normally distributed data); chi-squared test (categorical data); c Valid responses passing rationality testing and completing answers on their ‘current’