Table 4.
Matched characteristics within strata of CHD severity.
| Variable | No CHD | CHD | p | SMD |
|---|---|---|---|---|
|
| ||||
| Severe CHD | N=266 | N=266 | ||
|
| ||||
| Age | 0.94 | |||
| <6mos | 123 (46.2) | 125 (47.0) | 0.015 | |
| 6–12mos | 36 (13.5) | 37 (13.9) | 0.011 | |
| 1–6yrs | 61 (22.9) | 60 (22.6) | 0.009 | |
| 6–12yrs | 27 (10.2) | 22 (8.3) | 0.065 | |
| >12yrs | 19 (7.1) | 22 (8.3) | 0.042 | |
|
| ||||
| Male | 156 (58.7) | 156 (58.7) | 1.00 | <0.001 |
|
| ||||
| Race | 0.82 | |||
| NHW | 159 (59.8) | 152 (57.1) | 0.053 | |
| NHB | 43 (16.2) | 47 (17.7) | 0.040 | |
| Other | 64 (24.1) | 67 (25.2) | 0.026 | |
|
| ||||
| Year of surgery | 0.54 | 0.053 | ||
| 2013 | 135 (50.8) | 128 (48.1) | ||
| 2014 | 131 (49.3) | 138 (51.9) | ||
|
| ||||
| ASA | 0.44 | 0.067 | ||
| 1–2 | 25 (9.4) | 20 (7.5) | ||
| >2 | 241 (90.6) | 246 (92.5) | ||
|
| ||||
| Elective | 233 (87.6) | 234 (88.0) | 0.90 | 0.011 |
|
| ||||
| Operative | 8.48 | 8.48 | 0.88 | 0.043 |
| complexity | (8.48–18.10) | (8.48–18.10) | ||
|
| ||||
| Major CHD | N=1106 | N=1106 | ||
|
| ||||
| Age | 0.99 | |||
| <6mos | 550 (49.7) | 543 (49.1) | 0.013 | |
| 6–12mos | 175 (15.8) | 175 (15.8) | <0.001 | |
| 1–6yrs | 202 (18.3) | 205 (18.5) | 0.007 | |
| 6–12yrs | 79 (7.1) | 84 (7.6) | 0.017 | |
| >12yrs | 100 (9.0) | 99 (9.0) | 0.003 | |
|
| ||||
| Male | 588 (53.2) | 579 (52.4) | 0.70 | 0.016 |
|
| ||||
| Race | 0.97 | |||
| NHW | 620 (56.1) | 616 (55.7) | 0.007 | |
| NHB | 194 (17.5) | 193 (17.5) | 0.002 | |
| Other | 292 (26.4) | 297 (26.9) | 0.010 | |
|
| ||||
| Year of surgery | 0.73 | 0.015 | ||
| 2013 | 461 (41.7) | 469 (42.4) | ||
| 2014 | 645 (58.3) | 637 (57.6) | ||
|
| ||||
| ASA | 0.76 | 0.013 | ||
| 1–2 | 162 (14.7) | 157 (14.2) | ||
| >2 | 944 (85.4) | 949 (85.8) | ||
|
| ||||
| Elective | 934 (84.5) | 931 (84.2) | 0.86 | 0.007 |
|
| ||||
| Operative complexity | 11.29 (8.48–18.10) | 11.29 (8.48–18.10) | 0.84 | 0.002 |
|
| ||||
| Minor CHD | N=1349 | N=1349 | ||
|
| ||||
| Age | 1.00 | |||
| <6mos | 559 (41.4) | 558 (41.4) | 0.002 | |
| 6–12mos | 160 (11.9) | 160 (11.9) | <0.001 | |
| 1–6yrs | 254 (18.8) | 257 (19.1) | 0.006 | |
| 6–12yrs | 172 (12.8) | 172 (12.8) | <0.001 | |
| >12yrs | 204 (15.1) | 202 (15.0) | 0.004 | |
|
| ||||
| Male | 766 (56.8) | 767 (56.9) | 0.97 | 0.001 |
|
| ||||
| Race | 0.72 | |||
| NHW | 778 (57.7) | 758 (56.2) | 0.030 | |
| NHB | 239 (17.7) | 243 (18.0) | 0.008 | |
| Other | 332 (24.6) | 348 (25.8) | 0.027 | |
|
| ||||
| Year of surgery | 0.94 | 0.003 | ||
| 2013 | 603 (44.7) | 601 (44.6) | ||
| 2014 | 746 (55.3) | 748 (55.4) | ||
|
| ||||
| ASA | 0.93 | 0.003 | ||
| 1–2 | 435 (32.3) | 437 (32.4) | ||
| >2 | 914 (67.7) | 912 (67.6) | ||
|
| ||||
| Elective | 1057 (78.4) | 1060 (78.6) | 0.89 | 0.005 |
|
| ||||
| Operative complexity | 9.45 (8.48–18.10) | 10.05 (8.48–18.10) | 0.45 | 0.031 |
Numbers are n (%) or median (interquartile range).
ASA = American Society of Anesthesiologists; CHD = congenital heart disease; NHB = non-Hispanic blacks; NHW = non-Hispanic whites; SMD = standardized mean difference