Table 2.
Patient demographic data, length of stay and financial data by complication group for matched and unmatched samples a
| |
Entire cohort (
N
= 276) |
Matched sample (
n
= 100) |
||||||
|---|---|---|---|---|---|---|---|---|
| Variable | Uncomplicated | Complications | P -value | Difference | Uncomplicated | Complications | P -value | Difference |
| Patients, n (%) |
215 (78%) |
61 (22%) |
– |
– |
50 |
50 |
– |
– |
| Mean age, years (SD) |
60.2 (14.8) |
62.9 (13.3) |
0.20 |
2.7 |
63.6 (12.9) |
63.7 (12.3) |
0.97 |
0.1 |
| Females, n (%) |
113 (53%) |
27 (44%) |
0.25 |
– |
24 (48%) |
24 (48%) |
1.0 |
– |
| ASA class, mean (SD) |
2.5 (0.5) |
2.6 (0.5) |
0.21 |
0.1 |
2.6 (0.50) |
2.6 (0.50) |
1.0 |
0 |
| BMI, mean (SD) |
28.4 (7.3) |
28.7 (6.3) |
0.74 |
0.3 |
28.1 (6.4) |
28.2 (5.7) |
0.93 |
0.1 |
| LOS (days), mean (SD) |
7.3 (2.4) |
15.6 (7.8) |
<0.001 |
8.3 |
7.4 (2.1) |
15.9 (7.5) |
<0.001 |
8.5 |
| Total cost, mean (SD) |
$23,101 (6,914) |
$48,180 (26,596) |
<0.001 |
$25,079 |
$23,381 (6,712) |
$49,733 (28,279) |
<0.001 |
$26,351 |
| Fixed cost, mean (SD) |
$14,516 (4,252) |
$30,229 (16,340) |
<0.001 |
$15,713 |
$14,807 (4,509) |
$31,233 (17,333) |
<0.001 |
$16,426 |
| Variable cost, mean (SD) |
$8,535 (2,904) |
$17,848 (10,356) |
<0.001 |
$9,313 |
$8,526 (2,656) |
$18,397 (11,066) |
<0.001 |
$9,871 |
| Reimbursement, mean (SD) |
$23,231 (6,761) |
$35,651 (13,445) |
<0.001 |
$12,420 |
$23,632 (7,110) |
$35,739 (13,327) |
<0.001 |
$12,108 |
| Total margin, mean (SD) | $131 (8,309) | -$12,528 (26,113) | 0.001 | -$12,659 | $250 (7,781) | -$13,993 (27,144) | <0.001 | -$14,244 |
aASA: American Society of Anesthesiology; BMI: Body mass index. Total margin = Reimbursement - Total cost. Financial data are US dollars.