Table 3.
Separate effects and effect of the COPD and HB product term on chair rise and word memorization
| Time to complete Chair-riseb | Number of words memorizedb | ||||
|---|---|---|---|---|---|
| M1 d | M2e | M1d | M2e | ||
| COPDa | 1 vs. 0 | 0.17 (0.07 to 0.27) | 0.11 (0.01 to 0.2) | −0.08 (− 0.18 to 0.02) | −0.04 (− 0.14 to 0.06) |
| 2 vs. 0 | 0.31 (0.22 to 0.40) | 0.23 (0.14 to 0.32) | −0.15 (− 0.24 to − 0.07) | −0.09 (− 0.18 to − 0.003) | |
| 3 vs. 0 | 0.58 (0.43 to 0.73) | 0.46 (0.31 to − 0.60) | −0.19 (− 0.34 to − 0.03) | −0.10 (− 0.26 to 0.05) | |
| 4 vs. 0 | 0.74 (0.46 to 1.01) | 0.64 (0.37 to 0.91) | −0.12 (− 0.4 to 0.16) | −0.04 (− 0.32 to 0.24) | |
| HB-(g/dl)c | Association between lower HB level and time to complete chair rise | 0.05 (0.03 to 0.06) | 0.034 (0.02 to 0.05) | −0.03 (− 0.04 to − 0.001) | −0.02 (− 0.04 to − 0.001) |
| COPD + HB (g/dl) | unit decrease in HB *COPD 1 vs. 0 | 0.1 (0.03 to 0.17) | 0.1 (0.04 to 0.17) | 0.11 (0.04 to 0.18) | 0.11 (0.05 to 0.18) |
| Unit decrease in HB*COPD 2 vs. 0 | 0.04 (−0.02 to-0.11) | 0.05 (−0.01 to 0.11) | − 0.02 (− 0.08 to 0.04-) | −0.03 (− 0.09 to 0.03) | |
| Unit decrease in HB *COPD 3 vs. 0 | 0.08 (−0.01 to 0.18) | 0.11 (0.02 to 0.2) | −0.01(− 0.11 to 0.09)-) | −0.02 (− 0.11 to 0.08) | |
| Unit decrease in HB *COPD 4 vs. 0 | 0.36 (0.17 to 0.55) | 0.36 (0.17 to 0.54) | −0.03 (− 0.23 to 0.16) | −0.04 (− 0.24 to 0.15) | |
aCOPD1 = mild; 2 = moderate; 3 = severe; 4 = very severe
bmodeled as the decrease per SD (SD− 1) in words memorized and time to complete chair raises
cHB was included as a continuous variable in g/dl
dadjustment model 1: sex and age, number of test repetitions; N = 8351 measurements; 5709 persons
emodel 2 additionally adjusts for blood pressure, myocardial infarction (MI), stroke, diabetes, total cholesterol, alcohol, depression grip strength and smoking, imputed from complete data for M1 and available values for M2
*Product term