Table 3.
Odds ratio (95%CI) for the associations between lean body mass and DSST impairment b , by predicted lean body mass index quartiles a .
| DSST impairment | Lean body mass | |||||||
|---|---|---|---|---|---|---|---|---|
| Q1 | Q2 | P | Q3 | P | Q4 | P | p for trend | |
| Crude model | ref | 0.74 (0.56,0.97) | 0.04 | 0.82 (0.61,1.11) | 0.19 | 0.57 (0.40,0.80) | 0.00 | 0.01 |
| Model 1 | ref | 0.63 (0.37, 1.08) |
0.09 | 0.47 (0.22, 1.03) |
0.06 | 0.37 (0.15, 0.90) |
0.03 | 0.03 |
| Model 2 | ref | 0.64 (0.38, 1.07) |
0.08 | 0.47 (0.21, 1.02) |
0.06 | 0.3 6(0.15, 0.82) |
0.02 | 0.02 |
AF, animal fluency test; CERAD-DR, Consortium to Establish a Registry for Alzheimer’s Disease Delayed Recall test; CERAD-WL, Consortium to Establish a Registry for Alzheimer’s Disease Word Learning test; DSST, Digit Symbol Substitution Test; BMI, body mass index; CI, confidence interval; Ref, reference; Edu, education; Eth, Ethnicity; DM, diabetes mellitus; CVD, cardiovascular disease; CKD, chronic kidney disease.
a
All estimates accounted for sample weights and complex survey designs, and means and percentages were adjusted for survey weights of NHANES.
b
DSST impairment was defined as a socre ≤ 34 points.