Table 5.
Linear regression model to explain the variation of the DST score
| Unstandardized coefficients | Standardized coefficients | t | P-value | ||
|---|---|---|---|---|---|
|
|
|
||||
| B | SE | Beta | |||
| (Constant) | −9.005 | 3.134 | −2.873 | 0.005 | |
| Age | 0.154 | 0.030 | 0.363 | 5.147 | 0.000 |
| No formal education* | 2.530 | 0.726 | 0.273 | 3.487 | 0.001 |
| 3OZwst = none§ | −2.729 | 0.591 | −0.310 | −4.615 | 0.000 |
| GDS score | 0.300 | 0.073 | 0.279 | 4.113 | 0.000 |
| Cardiorespiratory problems = yes† | 1.257 | 0.532 | 0.159 | 2.362 | 0.020 |
| 4 years education* | −1.414 | 0.611 | −0.178 | −2.313 | 0.023 |
| MMSE | 0.109 | 0.052 | 0.147 | 2.084 | 0.039 |
Notes:
§
reference category: 3OZ Water swallow test: cough and wet voice;
†
reference category: no cardiorespiratory problems;
*
reference category: more than 4 years education.
Abbreviations: DST, Dysphagia Self-Test; 3OZwst, 3 ounce Water Swallow Test; GDS, Geriatric Depression Scale; MMSE, Mini Mental State Examination; B, regression coefficient; SE, standard error.