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Table 3.

Multivariate logistic regression: OR adjusted, confidence intervals and significance levels of isolated symptoms.

3a – In men
DIS DMS EMA
Wald χ2 df OR [95%CI] p-value* Wald χ2 df OR [95%CI] p-value* Wald Χ2 df OR [95%CI] p-value*
Age (years)
 65–69 2.42 3 1 0.49 28.16 3 1 <0.0001 6.45 3 1 0.092
 70–74 1.06 [0.52–2.17] 1.52 [1.19–1.96] 1.76 [1.08–2.86]
 75–79 0.82 [0.35–1.93] 1.76 [1.34–2.32] 1.08 [0.60–1.95]
 80+ 1.83 [0.70–4.80] 2.36 [1.64–3.40] 1.56 [0.75–3.29]
BMI
 <25 6.67 2 1 0.036
 25–29 1.00 [0.51–1.96]
 ≥30 2.70 [1.15–6.34]
CES-D ≥16, Yes vs No 1.38 1 1.65 [0.72–3.80] 0.24 1.53 1 1.25 [0.88–1.77] 0.22 3.74 1 1.90 [0.99–3.64] 0.053
Sleep treatment, Yes vs No 16.93 1 4.46 [2.19–9.10] <0.0001 2.77 1 1.69 [0.91–3.12] 0.096
Loud snoring, Yes vs No 6.26 1 1.43 [1.08–1.88] 0.012 2.36 1 1.50 [0.89–2.51] 0.125
Sleepiness, Yes vs No 1.20 1 1.56 [0.70–3.47] 0.27 27.68 1 2.30 [1.69–3.14] <0.0001 12.37 1 2.55 [1.51–4.29] 0.0004
Nightmares, Yes vs No 1.64 1 3.46 [0.52–23.17] 0.20 5.56 1 3.08 [1.21–7.83] 0.018
3b – In women
DIS DMS
Wald χ2 df OR [95%CI] p-value* Waldχ2 df OR [95%CI] p-value*
Age (years)
 65–69 1.20 3 1 0.75 13.77 3 1 0.003
 70–74 1.21 [0.78–1.89] 1.28 [0.98–1.67]
 75–79 0.96 [0.58–1.61] 1.59 [1.19–2.12]
 80+ 0.94 [0.47–1.85] 1.78 [1.21–2.60]
BMI
 <25 3.09 2 1 0.21
 25–29 0.91 [0.61–1.37]
 ≥30 0.57 [0.30–1.07]
Coffee > 2 cups/day, Yes vs No 3.51 1 0.78 [0.60–1.01] 0.061
Mediterranean diet, Yes vs No 0.48 1 0.87 [0.60–1.28] 0.49 3.08 1 0.82 [0.66–1.02] 0.079
CES-D≥16, Yes vs No 12.55 1 2.10 [1.39–3.16] 0.0004 0.49 1 1.10 [0.84–1.45] 0.48
Sleep treatment, Yes vs No 34.69 1 3.41 [2.27–5.14] <0.0001
Sleepiness, Yes vs No 12.88 1 2.01 [1.37–2.94] 0.0003
Nightmares, Yes vs No 1.13 1 1.71 [0.63–4.63] 0.29 7.44 1 2.44 [1.29–4.63] 0.006
* p-value (for variables with more than two categories, the p-value of the test for trend is given). EMA is not shown in women since all variables are not significant. Center not shown.
Am J Geriatr Psychiatry. 2011 January; 19(1): 88–97.
doi: 10.1097/JGP.0b013e3181e049b6.