Table 3

Odds ratios for the association between transfusion and outcomes for patients who underwent coronary artery bypass graft surgery

Outcomes:

Number (%) with outcome

Odds ratio for autologous transfusion (95% CI)*

P value

Odds ratio for allogeneic transfusion (95% CI)*

P value


Elective surgery:

In-hospital infection

1,305 (11.4%)

1.02 (0.56, 1.86)

0.936

1.98 (1.59, 2.46)

< 0.001

In-hospital mortality

325 (2.8%)

0.96 (0.12, 7.69)

0.968

4.67 (2.38, 9.18)

< 0.001

30-day readmission to hospital

2,488 (22.3%)

0.70 (0.44, 1.12)

0.140

1.43 (1.25, 1.65)

< 0.001

30-day readmission for infection

402 (3.6%)

0.94 (0.39, 2.24)

0.881

1.09 (0.82, 1.46)

0.555

30-day post-discharge mortality

155 (1.4%)

1.06 (0.13, 8.69)

0.957

2.88 (1.38, 5.98)

0.005

Urgent or emergency surgery:

In-hospital infection

2,702 (20.3%)

1.99 (1.12, 3.55)

0.019

1.82 (1.51, 2.20)

< 0.001

In-hospital mortality

637 (4.8%)

1.24 (0.16, 9.68)

0.837

3.82 (2.18, 6.70)

< 0.001

30-day readmission to hospital

3,610 (28.5%)

1.36 (0.79, 2.34)

0.266

1.68 (1.44, 1.96)

< 0.001

30-day readmission for infection

543 (4.3%)

1.88 (0.72, 4.90)

0.199

1.39 (1.00, 1.93)

0.052

30-day post-discharge mortality

290 (2.3%)

NE

NE

4.65 (1.90, 11.39)

0.001


The comparison group consisted of patients who received no transfusions.

*Adjusted for propensity score, surgical volume and hospital volume.

NE = not estimable due to small numbers.

Rogers et al. BMC Medicine 2009 7:37   doi:10.1186/1741-7015-7-37

Open Data