Table 3.
Multivariate models | Method A (ALM/height2) | Method B (ALM/weight) | Method C (ALM/BMI) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Normal (n = 177) |
Obesity (n = 731) |
LLM (n = 97) |
LLM with obesity (n = 100) |
Normal (n = 274) |
Obesity (n = 702) |
LLM (n = 0) |
LLM with obesity (n = 129) |
Normal (n = 248) |
Obesity (n = 560) |
LLM (n = 26) |
LLM with obesity (n = 271) |
|
Deaths/person-years | 89/2516 | 408/10,308 | 72/1158 | 73/1166 | 161/3674 | 384/9947 | N/A | 97/1527 | 146/3345 | 299/8002 | 15/329 | 182/3472 |
Model 1 | 1.00 (ref.) |
1.28 0.99–1.65 P = 0.064 |
1.47 1.08-2.00 P = 0.014 |
1.65 1.09–2.49 P = 0.017 |
1.00 (ref.) |
1.05 0.86–1.27 P = 0.638 |
N/A |
1.62 1.15–2.27 P = 0.005 |
1.00 (ref.) |
1.00 0.80–1.26 P = 0.971 |
0.83 0.50–1.39 P = 0.484 |
1.42 1.11–1.83 P = 0.006 |
Model 2 | 1.00 (ref.) |
1.28 1.01–1.63 P = 0.044 |
1.50 1.04–2.14 P = 0.028 |
1.77 1.22–2.58 P = 0.003 |
1.00 (ref.) |
1.05 0.87–1.27 P = 0.604 |
N/A |
1.62 1.16–2.26 P = 0.004 |
1.00 (ref.) |
1.01 0.82–1.25 P = 0.928 |
0.77 0.36–1.65 P = 0.505 |
1.37 1.09–1.74 P = 0.008 |
Model 3 | 1.00 (ref.) |
1.23 0.95–1.60 P = 0.115 |
1.32 0.91–1.93 P = 0.148 |
1.69 1.14–2.49 P = 0.008 |
1.00 (ref.) |
1.08 0.88–1.33 P = 0.455 |
N/A |
1.48 1.04–2.10 P = 0.028 |
1.00 (ref.) |
1.05 0.83–1.32 P = 0.682 |
0.80 0.41–1.54 P = 0.501 |
1.30 1.02–1.66 P = 0.037 |
Abbreviations: ALM, appendicular lean mass; BMI, body mass index; CI, confidence interval; HR, hazard ratio; LLM, low lean mass
Data are presented as n or weighted HR (95% CI).
Model 1: adjusted for age, sex, and race/ethnicity
Model 2: model 1 + educational level, family income-to-poverty ratio, smoking status, alcohol intake, physical activity, and total protein intake
Model 3: model 2 + diabetes mellitus, chronic kidney disease, cognitive problem, arthritis, hyperlipidemia, and cardiovascular disease