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Associations between each symptom.
| (A) Association between retrocollis and axial rigidity. | ||||
|---|---|---|---|---|
| Axial rigidity | ||||
| + | − | Total | ||
| Retrocollis | + | 22 | 3 | 25 |
| − | 23 | 8 | 31 | |
| Total | 45 | 11 | 56 | |
| (B) Association between oral and tube feeding. | ||
|---|---|---|
| FOIS level ≥ 3 | FOIS level ≤ 2 | |
| Retrocollis (+) | 7 | 18 |
| Retrocollis (−) | 17 | 14 |
Fisher’s exact test, p < 0.01 (A), p < 0.05 (B).
