Table 3.
We fit generalized estimating equations with robust standard errors and quasi-poisson outcome distribution to estimate predictors of the total number of non-household contacts amongst all households surveyed in the study (N = 1967)
| Participant characteristics | Count Ratio (95% CI) | |||
|---|---|---|---|---|
| Unadjusted | Adjusted | |||
| Model 1 | Model 2 | Model 3 | ||
| Age | ||||
| 0–4 | 0.51 (0.44,0.6) | 0.52 (0.44,0.60) | 0.52 (0.44,0.61) | 0.52 (0.45,0.6) |
| 5–12 | 0.48 (0.42,0.54) | 0.49 (0.43,0.55) | 0.49 (0.43,0.55) | 0.49 (0.43,0.55) |
| 13–17 | 0.46 (0.39,0.54) | 0.47 (0.40,0.55) | 0.47 (0.41,0.55) | 0.47 (0.4,0.55) |
| 18–39 | Ref | Ref | Ref | Ref |
| 40–64 | 0.98 (0.87,1.11) | 1.02 (0.90,1.16) | 1.03 (0.9,1.17) | 1.02 (0.9,1.16) |
| 65 + | 0.87 (0.52,1.48) | 0.83 (0.48,1.42) | 0.84 (0.48,1.43) | 0.82 (0.47,1.41) |
| Race | ||||
| White | Ref. | Ref. | Ref. | Ref.. |
| Asian | 0.75 (0.64,0.86) | 0.77 (0.67,0.90) | 0.79 (0.68,0.92) | 0.77 (0.67,0.89) |
| Black or African American | 1.08 (0.86,1.36) | 0.98 (0.78,1.25) | 0.96 (0.76,1.22) | 0.99 (0.79,1.25) |
| Some other race alone | 0.80 (0.62,1.02) | 0.65 (0.5,00.85) | 0.66 (0.5,0.86) | 0.66 (0.51,0.87) |
| Two or more races | 1.28 (0.93,1.75) | 1.11 (0.81,1.52) | 1.13 (0.83,1.55) | 1.13 (0.83,1.55) |
| Hispanic | 1.24 (1.07,1.43) | 1.17 (0.99,1.38) | 1.16 (0.99,1.37) | 1.14 (0.97,1.34) |
| Household income ≥ $150,000 | 0.79 (0.69,0.89) | 0.82 (0.72,0.94) | 0.84 (0.73,0.96) | 0.81 (0.71,0.93) |
| Number of household members | 0.98 (0.92,1.04) | 1.07 (1.01,1.14) | 1.08 (1.02,1.14) | 1.07 (1.01,1.14) |
| Single Parent | 1.45 (1.17,1.79) | 1.48 (1.16,1.89) | 1.45 (1.14,1.85) | 1.47 (1.15,1.87) |
| Wave | ||||
| Wave 1–May 2020 | Ref. | Ref. | Ref. | Ref |
| Wave 2–Sep 2020 | 1.36 (1.15,1.6) | 1.25 (1.06,1.47) | 1.18 (1,1.4) | 1.25 (1.06,1.47) |
| Wave 3–Feb 2021 | 1.38 (1.17,1.61) | 1.26 (1.08,1.48) | 1.19 (1.01,1.41) | 1.01 (0.84,1.21) |
| More adults working from home1 | 0.71 (0.63,0.8) | 0.81 (0.70,0.93) | ||
| Vaccinated household member | 1.55 (1.33,1.79) | 1.62 (1.35,1.94) | ||
We fit three adjusted models, each adjusting for age, race/ethnicity, household income, number of household members, and study wave. We additionally included the predictor for whether more or less adults worked from home, and whether a household member was vaccinated in model 2 and 3, respectively
1Missing values of whether more adults work from home during shelter in place (3.9%; 76/1967%) were multiply imputed from five independent data-sets using Amelia II