Table 2. Association between new onset POAF and postoperative course (N=10,390).
| Variable | POAF | Chi-square test | Odds ratio | ||||
|---|---|---|---|---|---|---|---|
| No | Yes | ||||||
| n | (%) | n | (%) | χ2 | p | OR (95% CI) | |
| Complication | |||||||
| MI | 8.82 | 0.0030 | |||||
| No | 7201 | (70%) | 3110 | (30%) | ref | ||
| Yes | 43 | (54%) | 895 | (46%) | 1.94 (1.24,3.02) | ||
| Permanent pacemaker | 50.10 | <.0001 | |||||
| No | 7146 | (70%) | 3037 | (30%) | ref | ||
| Yes | 98 | (47%) | 109 | (53%) | 2.62 (1.99,3.45) | ||
| Low cardiac output | 102.79 | <.0001 | |||||
| No | 6839 | (71%) | 2793 | (29%) | ref | ||
| Yes | 405 | (53%) | 353 | (47%) | 2.13 (1.84,2.48) | ||
| Tamponade | 36.58 | <.0001 | |||||
| No | 7132 | (70%) | 3039 | (30%) | ref | ||
| Yes | 112 | (51%) | 107 | (49%) | 2.24 (1.71,2.93) | ||
| Operative re-expl for bleeding | 35.57 | <.0001 | |||||
| No | 6943 | (70%) | 2928 | (30%) | ref | ||
| Yes | 301 | (58%) | 218 | (42%) | 1.72 (1.44,2.06) | ||
| Anticoagulant complications | 36.44 | <.0001 | |||||
| No | 7153 | (70%) | 3053 | (30%) | ref | ||
| Yes | 91 | (49%) | 93 | (51%) | 2.39 (1.79,3.21) | ||
| Transient stroke | 21.24 | <.0001 | |||||
| No | 7167 | (70%) | 3076 | (30%) | ref | ||
| Yes | 77 | (52%) | 70 | (48%) | 2.12 (1.53,2.94) | ||
| Permanent stroke | 56.13 | <.0001 | |||||
| No | 7105 | (70%) | 3004 | (30%) | ref | ||
| Yes | 139 | (49%) | 142 | (51%) | 2.42 (1.91,3.06) | ||
| Deep sternal infection | 20.54 | <.0001 | |||||
| No | 7195 | (70%) | 3095 | (30%) | ref | ||
| Yes | 49 | (49%) | 51 | (51%) | 2.42 (1.63,3.59) | ||
| Superficial sternal infection | 2.82 | 0.0934 | |||||
| No | 7075 | (70%) | 3055 | (30%) | |||
| Yes | 169 | (65%) | 91 | (35%) | |||
| Leg infection | 15.76 | <.0001 | |||||
| No | 7111 | (70%) | 3049 | (30%) | ref | ||
| Yes | 133 | (58%) | 097 | (42%) | 1.70 (1.30,2.22) | ||
| Pneumonia | 247.51 | <.0001 | |||||
| No | 6903 | (72%) | 2721 | (28%) | ref | ||
| Yes | 341 | (46%) | 424 | (55%) | 3.15 (2.72,3.66) | ||
| Acute renal failure | 116.75 | <.0001 | |||||
| No | 6957 | (71%) | 2855 | (29%) | ref | ||
| Yes | 287 | (50%) | 291 | (50%) | 2.47 (2.09,2.93) | ||
| GI complications | 221.27 | <.0001 | |||||
| No | 6869 | (72%) | 2716 | (28%) | ref | ||
| Yes | 375 | (47%) | 430 | (53%) | 2.90 (2.51,3.35) | ||
| Length of stay in hospital (days) | |||||||
| Length of stay in ICU | Median=2 (Q1,Q3: 1, 5) | Median=3 (Q1,Q3: 1, 8) | Z1 = 14.71 | <.0001 | |||
| Length of stay, surg. to disch. | Median=7 (Q1,Q3: 5, 9) | Median=9 (Q1,Q3: 7,15) | Z = 34.64 | <.0001 | |||
| Length of stay, stepdown unit | Median=4 (Q1,Q3: 2, 6) | Median=5 (Q1,Q3: 3, 9) | Z = 16.77 | <.0001 | |||
| Mortality | |||||||
| Mortality | 104.58 | <.0001 | |||||
| No | 6268 | (72%) | 2471 | (28%) | ref | ||
| Yes | 976 | (59%) | 675 | (41%) | 1.75 (1.57,1.96) | ||
| 30-day mortality | 3.57 | 0.0587 | |||||
| No | 6932 | (70%) | 2984 | (30%) | |||
| Yes | 312 | (66%) | 162 | (34%) | |||
| Cause of death: cardiac | 10.34 | 0.0014 | |||||
| No | 6984 | (70%) | 2991 | (30%) | ref | ||
| Yes | 260 | (63%) | 155 | (37%) | 1.39 (1.14,1.71) | ||
| Cause of death: neurologic | 15.02 | 0.0001 | |||||
| No | 7192 | (70%) | 3098 | (30%) | ref | ||
| Yes | 52 | (52%) | 48 | (48%) | 2.14 (1.44,3.18) | ||
| Cause of death: pulmonary | 19.57 | <.0001 | |||||
| No | 7153 | (70%) | 3069 | (30%) | ref | ||
| Yes | 91 | (54%) | 77 | (46%) | 1.97 (1.45,268) | ||
| Cause of death: infection | 5.51 | 0.0189 | |||||
| No | 7194 | (70%) | 3110 | (30%) | ref | ||
| Yes | 50 | (58%) | 36 | (42%) | 1.67 (1.08,2.56) | ||
1
Mann-Whitney-Wilcoxon test.