Table 6.
Results of sensitivity analysis and publication bias.
| Risk factor | Effect model OR [95% CI] |
Stability | Egger's test |
||
|---|---|---|---|---|---|
| Fixed model | Random model | T value | p value | ||
| Age | 1.23 [1.16, 1.30] | 1.56 [1.16, 2.11] | Stable | 1.26 | 0.277 |
| Type of stroke | 1.30 [1.21, 1.40] | 1.30 [1.21, 1.40] | Stable | — | — |
| Conscious disturbance | 1.06 [1.05, 1.09] | 2.27 [1.44, 3.58] | Stable | -1.14 | 0.305 |
| Dysphagia | 3.28 [2.84, 3.78] | 3.24 [2.06, 5.12] | Stable | 0.36 | 0.731 |
| Diabetes mellitus | 2.08 [1.76, 2.46] | 2.35 [1.23, 4.48] | Stable | 0.73 | 0.519 |
| Hypertension | 2.05 [1.83, 2.31] | 2.05 [1.83, 2.31] | Stable | — | — |
| COPD | 2.04 [1.86, 2.24] | 2.69 [1.90, 3.81] | Stable | 2.72 | 0.053 |
| Atrial fibrillation | 2.06 [1.07, 3.98] | 2.34 [0.84, 6.47] | Unstable | — | — |
| Hyperlipemia | 1.29 [1.19, 1.39] | 1.29 [1.19, 1.39] | Stable | — | — |
| Smoking history | 1.47 [1.27, 1.70] | 1.84 [0.96, 3.53] | Unstable | 0.53 | 0.651 |
| Invasive procedure | 2.81 [2.44, 3.23] | 3.37 [2.30, 4.94] | Stable | 3.98 | 0.011 |
| Hospital stays | 1.30 [1.25, 1.35] | 1.41 [1.22, 1.62] | Stable | 1.31 | 0.260 |
| Bedridden time | 1.51 [1.36, 1.68] | 1.51 [1.36, 1.68] | Stable | — | — |
| NIHSS score | 1.24 [1.16, 1.32] | 1.67 [1.02, 2.75] | Stable | — | — |
| GCS score | 1.38 [0.96, 1.97] | 2.73 [0.26, 28.82] | Stable | 0.96 | 0.515 |