Table 2.
Pooled costs per patient per item for both the intervention group and regular follow-up.
| Item | Intervention group, numbers | Intervention group, costs, €µ±SD | Regular follow-up, numbers | Regular follow-up, costs, €µ±SD | Difference | 95% CI | P value |
| The Box | 88 | €318±0a | 0 | €0±0 | –€318 | –€318 to –€318 | <.001 |
| E-visit | 148 | €34±13 | 0 | €0±0 | –€34 | –€36 to –€31 | <.001 |
| In-office outpatient clinic visit | 181 | €146±58 | 373 | €288±46 | €142 | €126 to €157 | <.001 |
| Holter | 89 | €196±108 | 171 | €360±84 | €164 | €136 to €192 | <.001 |
| Transthoracic echocardiogram | 100 | €151±76 | 178 | €256±58 | €105 | €86 to €126 | <.001 |
| Stress echocardiogram | 76 | €468±204 | 85 | €500±144 | €32 | –€19 to €84 | .12 |
| Emergency care visit | 12 | €38±104 | 25 | €75±221 | €37 | –€13 to €88 | .15 |
| Hospitalization | 18 | €139±697 | 25 | €186±984 | €47 | –€204 to €296 | .72 |
| Catheterization | 13 | €308±745 | 22 | €499±946 | €191 | –€59 to €440 | .13 |
| Single vessel PCIb | 10 | €273±1256 | 4 | €652±2077 | €379 |
–€125 to €884 | .14 |
| Multivessel PCI | 2 | €146±963 | 1 | €69±670 | –€77 | –€318 to €165 | .54 |
| Box support | 1 | €195±0 | 0 | €0±0 | –€195 | –€195 to –€195 | <.001 |
aA currency exchange rate of €1=US $1.0994 is applicable.
bPCI: percutaneous coronary intervention.