Table 2.
Results from Logistic Regression Analyses of Selected Predictors of OD Included in Multivariable Logistic Regression Models
| Categorical Variables | OD (n = 143) % (n) | No OD (n = 861) % (n) | Age Adjusted OR | 95% CI | p |
|---|---|---|---|---|---|
| APOE (ε4 carrier) | 33.6 (48) | 26.7 (230) | 1.51 | 1.02–2.22 | .040 |
| Current smoking | 17.5 (25) | 13.4 (115) | 1.75 | 1.07–2.87 | .026 |
| Physical inactivity | 23.8 (34) | 17.3 (149) | 1.57 | 1.01–2.43 | .043 |
| Atrial fibrillation | 15.4 (22) | 7.9 (68) | 1.69 | 0.99–2.90 | .055 |
| Head trauma | 16.8 (24) | 12.9 (111) | 1.62 | 0.98–2.66 | .058 |
| Cerebrovascular disease | 7.7 (11) | 3.1 (27) | 2.02 | 0.95–4.27 | .067 |
| Hypertension | 44.1 (63) | 43.2 (372) | 0.75 | 0.51–1.09 | .132 |
| Continuous variables | M (SD) | M (SD) | |||
| Odor identification at baseline | 12.5 (1.4) | 13.6 (1.4) | 0.60 | 0.52–0.69 | <.001 |
| MMSE | 29.2 (1.0) | 29.4 (0.8) | 0.81 | 0.66–0.99 | .044 |
| Perceptual speed | 14.3 (2.8) | 15.8 (3.1) | 0.91 | 0.85–0.97 | .004 |
| Episodic memory | 11.6 (2.7) | 12.1 (2.5) | 0.94 | 0.88–1.01 | .069 |
| Complex leisure activity | 3.5 (1.6) | 3.8 (1.8) | 0.93 | 0.84–1.02 | .133 |
| Social network index | 0.06 (0.4) | 0.14 (0.5) | 0.77 | 0.52–1.14 | .194 |
Note: CI = Confidence interval; MMSE = Mini-Mental State examination; OD = Olfactory dysfunction; OR = Odds ratio.