Table 3 Frequency and chi-square test of association analysis of post-cardiac patients in Ethiopia
Predictors/categories | Number of patients | Average time of outcome variable | Chi-square value | P value | ||
Censored | Death | |||||
Gender | Female | 842 | 780 (92.64) | 62 (7.36) | 1.1237 | 0.289 |
Male | 678 | 618(91.15) | 60(8.85) | |||
Residence | Rural | 692 | 640 (92.49) | 52(7.51) | 0.4509 | 0.502 |
Urban | 828 | 758(91.55) | 70(8.45) | |||
Heart disease type | Congenital | 593 | 575 (96.96) | 18 (3.04) | 39.7335 | < 0.001 |
Other | 53 | 42 (79.25) | 11(20.75) | |||
Valve Disease | 874 | 781 (89.36) | 93(10.64) | |||
Rheumatic disease status | Non-Rheumatic | 387 | 372 (96.12) | 15(3.88) | 12.1147 | 0.001 |
Rheumatic | 1133 | 1,026 (90.56) | 107(9.44) | |||
Family History | No | 1375 | 1,273(92.58) | 102(7.42) | 7.2210 | 0.007 |
Yes | 145 | 125 (86.21) | 20(13.79) | |||
NYHA class | II | 569 | 543 (95.43) | 26(4.57) | 15.0766 | 0.001 |
III | 857 | 769 (89.73) | 88(10.27) | |||
IV | 94 | 86 (91.49) | 8(8.51) | |||
Baseline diabetes status | No | 1506 | 1,385 (91.97) | 121(8.03) | *** | *** |
Yes | 14 | 13 (92.86) | 1(7.14) | |||
Pulmonary hypertension status | No | 1462 | 1,347(92.13) | 115(7.87) | 1.3350 | 0.248 |
Yes | 58 | 51 (87.93) | 7(12.07) | |||
Stroke status | No | 1516 | 1,397 (92.15) | 119(7.85) | *** | *** |
Yes | 4 | 1(25) | 3(75) | |||
Heart Failure Status | No | 1500 | 1,391(92.73) | 109(7.27) | 89.1151 | < 0.001 |
Yes | 20 | 7(35) | 13(65) | |||
Smoking status | No | 1516 | 1,397(92.15) | 119(7.85) | *** | *** |
Yes | 4 | 1(25) | 3(75) | |||
Number of surgeries | More than one | 25 | 24 (96) | 1(4) | *** | *** |
One | 1495 | 1,374 (91.91) | 121(8.09) | |||
Joint heart case | Combination | 177 | 161(90.96) | 16(9.04) | 0.2786 | 0.598 |
Single | 1343 | 1,237(92.11) | 106(7.89) | |||
Cardiac rhythm | Atrial fibrillation | 1471 | 1,351(91.84) | 120(8.16) | *** | Â |
Normal sinus rhythm | 49 | 47 (95.92) | 2(4.08) | |||