Table 1.
Primary Prediction Models for Depressive Symptoms Outcomes in the Oregon and Iowa Subsamples
Oregon | Iowa | ||||||
---|---|---|---|---|---|---|---|
B | SE | β | B | SE | β | ||
Model 1: Full Sample Continuous Outcome |
Age | −0.01 | 0.00 *** | −0.14 | −0.02 | 0.00 *** | −0.01 |
Age2 | 0.00 | 0.00 ** | 0.04 | 0.00 | 0.00 *** | −0.05 | |
Gender | -- | -- | -- | 0.41 | 0.05 *** | −0.64 | |
Day of year | 0.07 | 0.02 ** | 0.14 | 0.43 | 0.11 *** | −0.67 | |
Day2 | −0.04 | 0.02 | −0.28 | −0.26 | 0.07 *** | 0.97 | |
Day3 | 0.01 | 0.01 | 0.15 | 0.04 | 0.01 ** | −0.45 | |
Intercept | 2.16 | 0.04 *** | −1.44 | 0.06 *** | |||
Likelihood-ratio | |||||||
test | 150.32 | *** | 367.43 | *** | |||
ICC | .434 | .429 | |||||
Observations | 3476 | 4840 | |||||
N | 206 | 556 | |||||
OR | SE | β† | OR | SE | β† | ||
Model 2: Full Sample Binary Outcome |
Age group | 0.52 | 0.22 ** | 0.75 | 0.52 | 0.27 * | 0.73 |
Age | 1.01 | 0.01 | 1.09 | 1.06 | 0.03 * | 0.96 | |
Age2 | 1.00 | 0.00 | 0.87 | 0.99 | 0.00 | 0.84 | |
Gender | -- | -- | -- | 0.95 | 0.22 | 0.92 | |
Day of year | 1.02 | 0.08 | 1.03 | 6.17 | 0.66 ** | 16.87 | |
Day2 | 0.98 | 0.12 | 0.92 | 0.32 | 0.42 ** | 0.01 | |
Day3 | 1.00 | 0.03 | 1.05 | 1.21 | 0.08 * | 7.26 | |
Likelihood-ratio | |||||||
test | 3.10 | 11.75 | |||||
Observations | 3476 | 4840 | |||||
N | 206 | 556 | |||||
B | SE | β | B | SE | B | ||
Model 3: Clinical Subsample Continuous Outcome |
Age | −0.01 | 0.00 ** | −0.09 | −0.01 | 0.01 * | −0.01 |
Age2 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 * | −0.05 | |
Gender | -- | -- | -- | 0.32 | 0.06 *** | −0.49 | |
Day of year | 0.06 | 0.03 * | 0.13 | 0.58 | 0.20 ** | −0.91 | |
Day2 | −0.02 | 0.03 | −0.14 | −0.35 | 0.13 ** | 1.29 | |
Day3 | 0.00 | 0.01 | 0.02 | 0.06 | 0.02 * | −0.58 | |
Intercept | 2.42 | 0.04 *** | −0.91 | 0.10 *** | |||
Likelihood-ratio | |||||||
test | 72.72 | *** | 159.75 | *** | |||
Observations | 2145 | 1903 | |||||
N | 126 | 212 |
Note. B = unstandardized beta coefficient; SE = standard error; β = standardized beta coefficient; OR = odds ratio; ICC = Intraclass correlation coefficient.
coefficients only standardized for the covariate.
p < .001.
p < .01.
p < .05.