95% CI | 95% CI | |||||||
---|---|---|---|---|---|---|---|---|
Number of participants | Number of pneumonia event | Crude HR | Lower | Upper | Adjusted HR† | Lower | Upper | |
Group | ||||||||
Non-traumatic patients | 5672 | 10 | 1 | 1 | ||||
Number of IMRF=1 | 476 | 3 | 3.58 | 0.99 | 13.02 | 3.97* | 1.09 | 14.44 |
Number of IMRF=2 | 233 | 8 | 19.75** | 7.80 | 50.05 | 17.13** | 6.66 | 44.04 |
IMRF (N=709) | ||||||||
1 | 476 | 3 | 1 | 1 | ||||
2 | 233 | 8 | 5.51* | 1.46 | 20.76 | 4.76* | 1.24 | 18.23 |
*p<0.05, **p<0.01.
†Adjusted for age, gender, diabetes, hypertension, cardiovascular disease, asthma and COPD.
COPD, chronic obstructive pulmonary disease; IMRF, isolated minor rib fractures.