TABLE 3.
Linear mixed models predicting average change in follow-up steps/day, controlling for average baseline steps/day and average follow-up temperature
| Regression coefficient (beta) | Standard error of beta | t value | DF | p value | |
|---|---|---|---|---|---|
| (Intercept) | 290.005 | 230.427 | 1.260 | 89 | 0.211 |
| Ave baseline steps/day | −0.515 | 0.140 | −3.670 | 44 | 0.001 |
| Average follow-up temperature | 68.609 | 24.093 | 2.850 | 44 | 0.007 |
| (Intercept) | −94.951 | 324.770 | −0.292 | 89 | 0.771 |
| Ave baseline steps/day | −0.501 | 0.138 | −3.627 | 43 | 0.001 |
| Average follow-up temperature | 68.252 | 23.665 | 2.884 | 43 | 0.006 |
| Insured | 747.202 | 452.263 | 1.652 | 43 | 0.106 |
| (REF: not insured) | (REF) | ||||
| (Intercept) | 518.013 | 856.354 | 0.605 | 89 | 0.547 |
| Ave baseline steps/day | −0.537 | 0.146 | −3.686 | 41 | 0.001 |
| Average follow-up temperature | 63.094 | 27.933 | 2.259 | 41 | 0.029 |
| Age, 39 to <49 years | −321.746 | 944.916 | −0.341 | 41 | 0.735 |
| Age, 49 to <59 years | −374.590 | 942.516 | −0.397 | 41 | 0.693 |
| Age, 59 years or older (76 oldest) | 337.516 | 1,080.978 | 0.312 | 41 | 0.756 |
| (REF: Age, <39 years (31 youngest) | (REF) | ||||
| (Intercept) | −633.568 | 836.685 | −0.757 | 89 | 0.451 |
| Ave baseline steps/day | −0.499 | 0.146 | −3.418 | 42 | 0.001 |
| Average follow-up temperature | 67.328 | 24.275 | 2.774 | 42 | 0.008 |
| Years in USA, 10–15 years | 840.277 | 988.744 | 0.850 | 42 | 0.400 |
| Years in USA, 16 or more years | 1,051.390 | 877.286 | 1.198 | 42 | 0.237 |
| (REF: years in USA, 1–9 years) | (REF) | ||||
| (Intercept) | −3.289 | 288.740 | −0.011 | 87 | 0.991 |
| Ave baseline steps/day | −0.545 | 0.145 | −3.774 | 41 | 0.001 |
| Average follow-up temperature | 56.621 | 25.698 | 2.203 | 41 | 0.033 |
| Marital status, separated | 1,206.537 | 614.441 | 1.964 | 41 | 0.056 |
| Marital status, divorced/widowed/single | 306.273 | 729.641 | 0.420 | 41 | 0.677 |
| (REF: Marital status, cohabitating) | (REF) | ||||
| (Intercept) | 308.896 | 401.874 | 0.769 | 89 | 0.444 |
| Ave baseline steps/day | −0.506 | 0.147 | −3.446 | 42 | 0.001 |
| Average follow-up temperature | 73.165 | 28.402 | 2.576 | 42 | 0.014 |
| Education, some college/college grad | −134.217 | 629.260 | −0.213 | 42 | 0.832 |
| Education, post-college | 112.557 | 587.758 | 0.192 | 42 | 0.849 |
| (REF: education, high school grad or less) | (REF) | ||||
| (Intercept) | −962.082 | 648.799 | −1.483 | 89 | 0.142 |
| Ave baseline steps/day | −0.465 | 0.135 | −3.433 | 42 | 0.001 |
| Average follow-up temperature | 124.214 | 29.427 | 4.221 | 42 | 0.000 |
| Birth country, India | 2,081.603 | 819.193 | 2.541 | 42 | 0.000 |
| Birth country, Pakistan | 744.507 | 714.472 | 1.042 | 42 | 0.303 |
| (REF: birth country, Bangladesh) | (REF) | ||||
| (Intercept) | −629.412 | 364.658 | −1.726 | 89 | 0.088 |
| Ave baseline steps/day | −0.498 | 0.129 | −3.867 | 43 | 0.000 |
| Average follow-up temperature | 63.324 | 22.112 | 2.864 | 43 | 0.006 |
| PCP, has a PCP | 1,378.967 | 446.651 | 3.087 | 43 | 0.004 |
| (REF: PCP, does not have a PCP) | (REF) | ||||
| (Intercept) | 181.435 | 233.416 | 0.777 | 77 | 0.439 |
| Ave baseline steps/day | −0.493 | 0.141 | −3.499 | 38 | 0.001 |
| Average follow-up temperature | 78.208 | 26.149 | 2.991 | 38 | 0.005 |
| TC/HDL ratio | −230.145 | 144.507 | −1.593 | 38 | 0.12 |
| (Intercept) | 279.136 | 217.296 | 1.285 | 89 | 0.202 |
| Ave baseline steps/day | −0.477 | 0.133 | −3.582 | 43 | 0.001 |
| Average follow-up temperature | 62.435 | 22.865 | 2.731 | 43 | 0.009 |
| Glucose | 7.026 | 2.930 | 2.398 | 43 | 0.021 |
| (REF: baseline glucose, below 150) | (REF) | ||||
| (Intercept) | −637.902 | 445.295 | −1.433 | 89 | 0.155 |
| Ave baseline steps/day | −0.389 | 0.142 | −2.732 | 41 | 0.009 |
| Average follow-up temperature | 67.894 | 23.068 | 2.943 | 41 | 0.005 |
| Baseline glucose, 25th to <50th percentile (98.5 to <113.0) | 824.617 | 651.408 | 1.266 | 41 | 0.213 |
| Baseline glucose, 50th to <75th percentile (113.0 to <148.5) | 1,228.009 | 628.692 | 1.953 | 41 | 0.058 |
| Baseline glucose, 75th percentile or higher (148.5 or higher) | 1,666.701 | 638.661 | 2.610 | 41 | 0.013 |
| (REF: Baseline glucose, <25th percentile (<98.5)) | (REF) | ||||
| (Intercept) | 98.592 | 244.889 | 0.403 | 89 | 0.688 |
| Ave baseline steps/day | −0.546 | 0.138 | −3.967 | 43 | 0.001 |
| Average follow-up temperature | 56.770 | 24.259 | 2.340 | 43 | 0.024 |
| Using tobacco products | 1,320.754 | 674.653 | 1.958 | 43 | 0.057 |
| (REF: was not using tobacco products) | (REF) |
All continuous variables were centered at their means