Table 4.
The comparison of hospital stay between the five groups
| Diabetes | Hypertension | Obesity | combined two | no combined | |
|---|---|---|---|---|---|
| hospital stay | 5.2 | 6.0 | 4.9 | 6.2 | 4.5 |
| χ2 | 13.30 | 10.54 | 9.43 | 9.40 | |
| P | <0.01 | 0.042 | 0.032 | 0.033 |
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