Table 4.
Results of machine learning based algorithm for incident atrial fibrillation outcome
| Effect | Levels | DF | Chi-Square | Pr>ChiSq | Coefficient Estimate |
|---|---|---|---|---|---|
| Intercept | 1 | 947.09 | <0.0001 | -5.560000 | |
| CAD | 1 | 1 | 8.55 | 0.0035 | 0.360900 |
| CHF | 1 | 1 | 41.12 | <0.0001 | 0.357200 |
| covid_stts | 1 | 1 | 43.21 | <0.0001 | 0.420100 |
| ANEMIA*HYP | 1 1 | 1 | 7.36 | 0.0067 | 0.115300 |
| ANEMIA*MBldg | 1 1 | 1 | 6.49 | 0.0108 | 0.113000 |
| ANEMIA*covid_stts | 1 1 | 1 | 10.27 | 0.0014 | -0.150100 |
| CAD*LIPDIS | 1 1 | 1 | 5.82 | 0.0158 | 0.016800 |
| CAD*age_group | 4 | 12.79 | 0.0123 | ||
| 1 4 | 1 | 7.87 | 0.005 | -0.343200 | |
| 1 3 | 1 | 1.79 | 0.1815 | -0.166700 | |
| 1 2 | 1 | 0.48 | 0.4891 | -0.107400 | |
| 1 1 | 1 | 0.04 | 0.8325 | -0.047800 | |
| CHF*HYP | 1 1 | 1 | 15.82 | <0.0001 | -0.183300 |
| CHF*VALVD | 1 1 | 1 | 5.78 | 0.0162 | -0.093500 |
| CKD*age_group | 4 | 28.38 | <0.0001 | ||
| 1 4 | 1 | 1.91 | 0.1670 | 0.058600 | |
| 1 3 | 1 | 18.82 | <0.0001 | 0.256900 | |
| 1 2 | 1 | 3.37 | 0.0664 | 0.236100 | |
| 1 1 | 1 | 5.56 | 0.0184 | -0.537000 | |
| COGI*LIPDIS | 1 1 | 1 | 9.72 | 0.0018 | 0.138500 |
| COGI*SPOND | 1 1 | 1 | 7.16 | 0.0074 | -0.077900 |
| COPD*MBldg | 1 1 | 1 | 4.31 | 0.0378 | -0.085700 |
| COPD*covid_stts | 1 1 | 1 | 4.71 | 0.0300 | -0.092700 |
| COPD*gndr | 1 1 | 1 | 7.15 | 0.0075 | 0.081200 |
| DEP*VALVD | 1 1 | 1 | 8.55 | 0.0034 | -0.105700 |
| LIPDIS*MBldg | 1 1 | 1 | 11.75 | 0.0006 | -0.148600 |
| MBldg*gndr | 1 1 | 1 | 30.71 | <0.0001 | 0.169800 |
| STROKE*VALVD | 1 1 | 1 | 7.87 | 0.0050 | -0.110600 |
| VD*covid_stts | 1 1 | 1 | 11.71 | 0.0006 | -0.123700 |
| age*age | 1 | 124.95 | <0.0001 | 0.000304 | |
| Note: | |||||
| CAD - coronary artery disease | |||||
| CHF - congestive heart failure | |||||
| COVID_STTS - presence/absence of covid-19 condition | |||||
| HYP - hypertension | |||||
| CKD - chronic kidney disease | |||||
| COGI - cognitive impairment | |||||
| LIPDIS - lipid disorders | |||||
| SPOND - spondylosis and intervertebral discs | |||||
| COPD - chronic pulmonary obstructive disease /bronchictasis | |||||
| DEP - depression | |||||
| GNDR - gender (female=1, male=0) | |||||
| VALVD - valvular disease | |||||
| MBLDG - major bleeding | |||||
| VD - vascular disease | |||||
| Age - continuous variable in years | |||||
| Age group in years - 0 for 18 to 45, 1 for 45 to 55, 2 for 55 to 65, 3 for 65 60 75, 4 for 75 to 90 | |||||
| Each of the comorbid conditions is labeled as 1 for presence of condition and 0 for absence | |||||