n | Usual care | 10TT | Unit cost (£) | Usual care | 10TT | Incremental difference | ||||
Mean (SD) | Median (IQR) | Mean (SD) | Median (IQR) | Mean cost (£) | Mean cost (£) | Mean (£) | (95% CI) | |||
No imputation for missing values | ||||||||||
GP surgery visit | 204 | 9.4 (8.4) | 7 (7.00) | 9.7 (9.5) | 7 (9.00) | 45 | 417 | 425 | 8 | (−72 to 89) |
GP home visit | 196 | 0.1 (0.8) | 0 (0.00) | 0.0 (0.1) | 0 (0.00) | 292 | 37 | 9 | −27 | (−61 to 7) |
GP phone | 199 | 1.3 (3.0) | 0 (1.00) | 1.3 (3.0) | 0 (1.00) | 27 | 34 | 34 | 0 | (−16 to 16) |
GP practice nurse | 206 | 6.9 (8.4) | 4 (6.00) | 6.8 (9.5) | 4 (6.50) | 40 | 274 | 268 | −6 | (−77 to 64) |
Nurse home visit | 195 | 0.1 (1.1) | 0 (0.00) | 0.0 (0.1) | 0 (0.00) | 70 | 5 | 1 | −4 | (−16 to 7) |
GP practice nurse phone | 197 | 0.5 (2.3) | 0 (0.00) | 0.4 (1.2) | 0 (0.00) | 10 | 5 | 4 | −1 | (−5 to 2) |
Dietitian | 195 | 0.1 (0.5) | 0 (0.00) | 0.1 (0.8) | 0 (0.00) | 35 | 4 | 4 | 0 | (−4 to 4) |
Additional nurse visit | 197 | 1.1 (3.1) | 0 (1.00) | 1.6 (2.6) | 0 (1.00) | 4 | 45 | 44 | 0 | (−23 to 22) |
Inpatient admission | 196 | 0.2 (0.7) | 0 (0.00) | 0.2 (0.7) | 0 (0.00) | 1713 | 372 | 387 | 14 | (−220 to 249) |
Outpatient clinic | 200 | 2.2 (3.5) | 1 (3.00) | 2.1 (3.3) | 1 (3.00) | 135 | 288 | 269 | −20 | (−110 to 70) |
Accident and emergency visit | 199 | 0.4 (1.2) | 0 (0.00) | 0.4 (0.9) | 0 (1.00) | 177 | 65 | 67 | 2 | (−36 to 39) |
Other outpatient services | 194 | 1.0 (1.8) | 0 (1.00) | 1.0 (2.3) | 0 (1.00) | 135 | 124 | 129 | 5 | (−48 to 58) |
Missing values imputed* | SE | SE | ||||||||
GP surgery visit | 270 | 9.4 (0.6) | 9 | 9.4 (0.7) | 9 | 45 | 419 | 420 | 1 | (−79 to 81) |
GP home visit | 270 | 0.1 (0.5) | 0 | 0.0 (0.2) | 0 | 292 | 36 | 13 | −23 | (−58 to 12) |
GP phone | 270 | 1.3 (0.2) | 1 | 1.3 (0.2) | 1 | 27 | 35 | 33 | −2 | (−19 to 14) |
GP practice nurse | 270 | 6.9 (0.6) | 6 | 6.6 (0.7) | 6 | 40 | 274 | 266 | −9 | (−75 to 57) |
Nurse home visit | 270 | 0.1 (1.0) | 0 | 0.0 (0.1) | 0 | 70 | 6 | 2 | −4 | (−16 to 7) |
GP practice nurse phone | 270 | 0.5 (0.6) | 0 | 0.4 (0.1) | 0 | 10 | 5 | 4 | −1 | (−5 to 2) |
Dietitian | 270 | 0.1 (0.0) | 0 | 0.1 (0.6) | 0 | 35 | 4 | 4 | 0 | (−4 to 4) |
Additional nurse visit | 270 | 1.2 (0.2) | 1 | 1.8 (0.2) | 0 | 4 | 46 | 47 | 0 | (−23 to 23) |
Inpatient admission | 270 | 0.2 (0.1) | 0 | 0.2 (0.1) | 0 | 1713 | 373 | 379 | 6 | (−238 to 251) |
Outpatient clinic | 270 | 2.1 (0.3) | 2 | 2.0 (0.2) | 0 | 135 | 287 | 266 | −22 | (−106 to 63) |
Accident and emergency visit | 270 | 0.4 (0.9) | 0 | 0.4 (0.7) | 0 | 177 | 67 | 69 | 2 | (−38 to 42) |
Other outpatient services | 270 | 1 (0.1) | 1 | 1 (0.2) | 0 | 135 | 122 | 129 | 6 | (−52 to 65) |
Weight-loss interventions | ||||||||||
10TT | – | – | – | – | 23 | – | – | |||
Weight Watchers | – | – | – | 78 | – | – | ||||
Slimming World | – | – | – | – | 93 | – | – | |||
Size Down Programme | – | – | – | – | 73 | – | – |
Costs are in 2013/2014 UK£.
SD for non-imputed data. SE for imputed data.
*Missing values imputed using multiple imputation with 20 imputed data sets (see text).
10TT, Ten Top Tips; GP, general practitioner.