Table 4.
Variable | Before matching | After matching | ||||
---|---|---|---|---|---|---|
Group I (n=66) | Group S (n=95) | P-value | Group I (n=58) | Group S (n=58) | P-value | |
Hypertension1, n (%) | 28 (42.4) | 38 (0.40) | 0.758 | 24 (41.4) | 25 (43.1) | 0.851 |
Hypotension2, n (%) | 21 (31.8) | 21 (22.1) | 0.167 | 18 (31.0) | 12 (20.7) | 0.203 |
Blood transfusion3, n (%) | 7 (10.6) | 13 (13.7) | 0.560 | 6 (10.3) | 6 (10.3) | 1.000 |
ICU admission, n (%) | 1 (1.5) | 4 (4.2) | 0.649 | 1 (1.7) | 3 (5.2) | 0.618 |
Second surgery, n (%) | 1 (1.5) | 0 (0) | 0.410 | 1 (1.7) | 0 (0) | 1.000 |
In-hospital mortality, n (%) | 1 (1.5) | 1 (1.1) | 1.000 | 1 (1.7) | 1 (1.7) | 1.000 |
Awareness, n (%) | 1 (1.5) | 0 (0) | 0.410 | 0 (0) | 0 (0) | 1.000 |
Values are expressed as mean±standard deviation or number of patients (n, %). Groups: I, BIS indices maintained at about 10 less than the BIS value at LOC; S, BIS indices maintained at 40–60. ICU – Intensive Care Unit; BIS – bispectral index; LOC – loss of consciousness.
Hypertension: use of any vasodilator during surgery to maintain systolic blood pressure no more than 140 mmHg;
Hypotension: use of any vasopressor during surgery to maintain systolic blood pressure no less than 90 mmHg;
Blood transfusion: the number of patients receiving blood transfusion during surgery and/or after surgery.