Table 6.
Stratified analysis of the likelihood of death among patients with respiratory system diseases infected with COVID-19 diseases
| Characteristics |
Pooled OR (95% CI) |
P-value |
|
|---|---|---|---|
|
Heterogeneity |
Meta-regression |
||
|
Type of diseases: | |||
| Chronic lung disease |
3.34 (2.15-5.18) |
<0.01 |
0.232 |
| Chronic obstructive pulmonary disease (COPD) |
2.62 (1.48-4.64) |
<0.01 |
|
| Pulmonary emphysema |
4.69 (0.41-52.97) ++ |
NA |
|
| Chronic bronchitis |
1.53 (0.41-5.68)++ |
NA |
|
| Asthma |
1.01 (0.61-1.67) |
0.152 |
|
|
Study country: | |||
| Australia |
4.56 (2.47-8.44)++ |
NA |
0.214 |
| Italy |
1.54 (0.73-3.25) |
NA |
|
| China |
3.46 (2.20-5.43) |
<0.01 |
|
| United State of America |
2.11 (1.26-3.52) |
<0.01 |
|
| Iran |
2.16 (1.05-4.45) ++ |
NA |
|
| Mexico |
1.20 (0.54-2.68) |
<0.01 |
|
|
Study design: | |||
| Cross-sectional |
1.20 (0.54-2.68) |
<0.05 |
0.221 |
| Prospective cohort |
2.76 (1.45-5.23) |
<0.01 |
|
| Retrospective cohort |
2.98 (2.00-4.44) |
<0.01 |
|
|
Adjustment factor: | |||
| Unadjusted |
2.79 (1.60-4.84) |
<0.01 |
<0.05 |
| Adjusted |
1.53 (0.96-2.46) |
<0.01 |
|
|
Sample size: | |||
| >1134 |
1.88 (1.14-3.09) |
<0.01 |
0.161 |
| ≤1134 |
2.97 (2.11-4.16) |
<0.01 |
|
|
Mean age of the total sample: | |||
| ≤60 |
3.41 (1.86-6.26) |
<0.01 |
0.279 |
| >60 |
2.32 (2.63-3.29) |
<0.01 |
|
|
Mean age of death sample: | |||
| ≤70 |
4.22 (2.44-7.30) |
0.209 |
0.055 |
| >70 | 2.16 (1.57-2.99) | <0.01 | |