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The effect of FNAN on complications in the CHD patients.
| Parameters | CG (n = 46) | EG (n = 50) | χ2 | P |
| Respiratory system infection, cases (%) | 6 (13.0) | 2 (4.0) | 7.42 | .006 |
| Lung infection, cases (%) | 4 (8.7) | 2 (4.0) | ||
| Blocked breathing, cases (%) | 5 (10.9) | 1 (2.0) |
The statistical difference was significant if P < .05.
CHD = coronary atherosclerotic heart disease, FNAN = family nursing with the assistance of network
