Table 4.
Logistic unadjusted and adjusted regression analyses of the strength of associations between the groups with depression (Cornell ≥8) and without depression (Cornell ˂8) and variables measuring demographic factors, cognitive and physical performance
| Independent variables | Unadjusted analysis | Adjusted analysis model 1 | Adjusted analysis model 2 | ||||||
| B | OR (95% CI) |
Sig. | B | OR (95% CI) |
Sig. | B | OR (95% CI) |
Sig. | |
| Age in years | −0.20 | 0.822 (0.35 to 1.91) |
0.65 | −0.02 | 0.983 (0.93 to 1.04) |
0.51 | −0.01 | 0.988 (0.94 to 1.04) |
0.65 |
| Gender(1=women and 2=men) | −0.01 | 0.995 (0.95 to 1.05) |
0.85 | −0.27 | 0.765 (0.31 to 1.92) |
0.57 | −0.10 | 0.907 0.37 to 2.25) |
0.83 |
| Duration of stay in nursing home (months) | 0.01 | 1.006 (0.99 to 1.02) |
0.43 | ||||||
| Number of diagnoses | 0.17 | 1.183 0.97 to 1.44) |
0.09 | ||||||
| Number of drugs | 0.10 | 1.104 (0.98 to 1.24) |
0.09 | ||||||
| Use of walking aid (0=no and 1=yes) | 0.47 | 1.592 (0.69 to 3.67) |
0.28 | ||||||
| Able to rise from chair independently (0=no and 1=yes) | 1.27 | 3.576 (0.98 to 13.10) |
0.054 | ||||||
| Mini Mental State Examination in points | −0.01 | 0.993 (0.92 to 1.07) |
0.86 | ||||||
| Berg Balance Test in points | −0.03 | 0.969 (0.95 to 0.99) |
0.02* | −0.03 | 0.968 (0.94 to 0.99) |
0.01* | |||
| 30 s Chair Stand Test in number | −0.16 | 0.853 (0.75 to 0.97) |
0.02* | −0.16 | 0.848 (0.74 to 0.97) |
0.02* | |||
| Comfortable walking speed in m/s | −1.08 | 0.340 (0.04 to 2.77) |
0.31 | ||||||
| Maximum walking speed in m/s | −1.07 | 0.342 (0.10 to 1.14) |
0.08 | ||||||
| Barthel Index in points | −0.08 | 0.924 (0.83 to 1.03) |
0.14 | ||||||
*p<0.05.
Model 1 does not include Chair Stand Test (CST) because of high correlation with Berg Balance Scale (BBS) (r=0.7). Model 2 does not include BBS because of high correlation with CST (r=0.7). B, unstandardised beta; OR, odds ratio; CI, 95% confidence interval; Sig., levels of significance (p value). MMSE: range 0–30; low score indicates poor cognitive function. BBS: range 0–56; high score indicates good balance. 30 s CST (number of rises from chair within 30 s), comfortable and maximum walking speed in m/s; high scores on the physical tests indicate better physical function. Barthel Index: range 0–20; high score indicates greater dependency. Cornell Scale for Depression in Dementia: range 0–38 (0=not depressed, Cornell score <8; 1=depressed, Cornell score ≥8).