Table 1

Follow-up mean resource use per patient and frequency of adverse events

Year 1Year 2Year 3Year 4Year 5Total at year 5Difference
(95% CI to P values)
Mean resource use/number of patients receiving resources
SITA
(n=1554)
BITA
(n=1548)
SITA
(n=1554)
BITA
(n=1548)
SITA
(n=1554)
BITA
(n=1548)
SITA
(n=1554)
BITA
(n=1548)
SITA
(n=1554)
BITA
(n=1548)
SITA
(n=1554)
BITA
(n=1548)
BITA vs SITA
Healthcare contacts
 GP visits6.56.34.54.44.24.14.13.83.93.820.820.0−0.8 (−1.9 to 0.4; 0.195)
 Nurse visits3.23.41.21.41.41.41.41.51.41.47.88.50.7 (−0.5 to 1.8; 0.266)
 Outpatient clinic visits1.92.41.21.51.01.31.21.11.11.15.96.80.9 (−0.1 to 1.9; 0.089)
 Cardiac rehabilitation visits5.15.21.21.10.90.70.71.00.50.58.18.0−0.1 (−1.7 to 1.6; 0.953)
 Number of nights in hospital0.71.00.20.10.10.20.10.10.20.11.11.30.2 (−0.3 to 0.7; 0.362)
Medications
 Mean number of medications4.84.84.74.74.64.74.64.54.64.521.120.8−0.3 (−0.9 to 0.3; 0.328)
Adverse events to n (%)
 Myocardial infarction1292548567630 (0.39)34 (0.44)−0.05 (−0.3 to 0.1; 0.606)
 Cerebrovascular accident14956733510839 (0.50)31 (0.40)0.10 (−0.1 to 0.3; 0.360)
 Further CABG02000100000 (0.00)3 (0.04)−0.04 (−0.1 to 0.0; 0.179)
 Further PCI25242613262111181717105 (1.35)93 (1.20)0.15 (−0.3 to 0.6; 0.476)
 Revascularisation with catheter3121713231014931260 (0.77)56 (0.72)0.05 (−0.3 to 0.4; 0.773)
 Sternal wound problems34673100120038 (0.49)70 (0.90)−0.42 (−0.8 to –0.1; 0.017)
 Major bleed56000001005 (0.06)7 (0.09)−0.03 (−0.1 to 0.1; 0.559)
 Other events396376146185136172140168109147927 (11.9)1048 (13.5)−1.61 (−3.0 to –0.2; 0.028)
 Death25212518233326282923128 (1.65)123 (1.59)0.06 (−0.3 to 0.5; 0.774)
  • SITA, single internal thoracic artery; BITA, bilateral internal thoracic artery; CABG, coronary artery bypass graft surgery; GP, general practitioner; PCI, percutaneous coronary interventions.