Table 2.
Multinomial Logistic Regression of Subjective and Objective Napping in Older Women (n = 2,675)
| Correlates | Subjective | Objective | Both Subjective and Objective |
|---|---|---|---|
| OR (95% CI) | OR (95% CI) | OR (95% CI) | |
| Age (per 5 y increase) | 1.08 (0.84, 1.39) | 1.21 (1.05, 1.41)* | 1.59 (1.31, 1.93)*** |
| Depression score (per SD increase) | 1.24 (1.02, 1.50)* | 1.34 (1.19, 1.51)*** | 1.53 (1.32, 1.77)*** |
| MMSE (per SD increase) | 0.99 (0.83, 1.19) | 0.99 (0.88, 1.10) | 0.99 (0.85, 1.14) |
| Obesity | 1.60 (1.10, 2.32)* | 1.36 (1.07, 1.72)* | 1.93 (1.42, 2.61)*** |
| Current smoking | 1.59 (0.52, 4.85) | 1.84 (0.93, 3.65) | 3.37 (1.56, 7.30)** |
| Heavier alcohol drinking | 0.63 (0.42, 0.95)* | 0.55 (0.43, 0.70)*** | 0.49 (0.34, 0.71)*** |
| Take walks for exercise | 0.92 (0.66, 1.27) | 0.90 (0.74, 1.10) | 0.85 (0.64, 1.13) |
| Stroke | 1.90 (1.23, 2.92)** | 1.14 (0.84, 1.55) | 1.56 (1.08, 2.26)* |
| Hypertension | 0.89 (0.65, 1.23) | 1.15 (0.94, 1.39) | 1.15 (0.88, 1.51) |
| Diabetes | 1.19 (0.67, 2.10) | 1.56 (1.11, 2.20)* | 2.40 (1.61, 3.57)*** |
| Myocardial infarction | 1.63 (1.06, 2.49)* | 0.85 (0.62, 1.16) | 1.03 (0.70, 1.52) |
| Dementia | 0.88 (0.18, 4.41) | 1.86 (0.77, 4.54) | 3.31 (1.27, 8.62)* |
| Parkinson’s disease | 3.39 (0.55, 20.95) | 3.01 (0.74, 12.33) | 7.43 (1.87, 29.50)** |
| SSRI use | 1.49 (0.89, 2.49) | 0.84 (0.58, 1.23) | 1.39 (0.90, 2.14) |
Note: MMSE = Mini-Mental State Examination; OR = odds ratio; SSRI = selective serotonin reuptake inhibitor. Multivariable model included all the above covariates (associated with either napping outcome in univariate analysis with p < .1).
*
p < .05.
**
p < .01.
***
p < .001.