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. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: Epidemiology. 2019 Mar;30(2):166–176. doi: 10.1097/EDE.0000000000000940

Table 3.

Coefficients from Tobit models for the percent of EMA responses in which participants indicated any alcohol use (n = 231). All independent variables standardized. Models control for age, sex, race/ethnicity, the median household income for the residential Census block group, exposure to all retail outlets, exposure to neighborhood disorganization, proportion of time away from home.

All Outlets Bars Restaurants Off Premise Outlets
β (95% CI) β (95% CI) β (95% CI) β (95% CI)
Residence-Based Measures
Outlet count within circular buffer of residence (800m) 6.6 (0.6 12.6) 6.6 (1.5 11.7) 6.2 (0.0 12.4) 5.1 (−1.0 11.1)
Outlet count topithin Census block group 6.3 (0.6 11.9) 6.5 (1.6 11.4) 5.5 (−0.2 11.2) 5.2 (−0.8 11.2)
Outlet count topithin Census tract 8.3 (2.8 13.8) 8.3 (3.1 13.5) 6.4 (1.0 11.7) 7.9 (2.4 13.4)
Outlet density topithin Census block group (count per square km) 4.4 (−1.3 10.1) 5.8 (0.6 11.1) 3.5 (−2.3 9.4) 4.2 (−2.1 10.5)
Outlet density topithin Census tract (count per square km) 4.4 (−1.8 10.7) 4.6 (−1.3 10.4) 3.4 (−2.8 9.6) 4.7 (−1.7 11.2)
Inverse distance topeighted sum of 7 nearest outlets (km) 5.2 (−0.4 10.8) 5.5 (0.0 10.9) 5.1 (−0.1 10.3) 4.8 (−1.6 11.2)
Activity Location-Based Measures
Outlet count topithin circular buffer around activity locations (800m) 4.3 (−2.2 10.8) 4.9 (−1.5 11.2) 2.7 (−4.2 9.5) 4.4 (−1.3 10.2)
Outlet count topithin convex hull 2.7 (−3.6 8.9) 2.5 (−3.7 8.7) 0.7 (−6.1 7.5) 4.2 (−1.5 9.9)
Outlet count topithin standard deviation ellipse 0.9 (−6.2 7.9) -0.1 (−7.4 7.3) -2.3 (−10.9 6.3) 3.5 (−2.6 9.6)
Outlet count topithin standard deviation ellipse (time-topeighted) -0.5 (−7.9 6.8) 0.5 (−6.1 7.1) -5.0 (−15.0 4.9) 2.4 (−3.4 8.2)
Outlet count along shortest roadtopay nettopork distance bettopeen activity locations (100m buffer) 0.8 (−5.9 7.4) 2.3 (−3.9 8.6) -0.0 (−6.7 6.6) 1.7 (−5.0 8.4)
Activity Path-Based Measures
Outlet count topithin buffer around activity path line (100m buffer) 5.4 (−1.9 12.6) 6.3 (−0.8 13.4) 4.2 (−2.8 11.2) 6.0 (−1.2 13.2)
Outlets per hour (100m buffer) 8.3 (3.3 13.2) 11.6 (4.5 18.7) 7.6 (3.3 11.9) 1.9 (−4.6 8.4)
Outlets per hour – excluding home (100m buffer) 7.7 (1.8 13.7) 12.4 (1.6 23.2) 6.3 (1.9 10.7) 1.2 (−6.9 9.3)
% Time exposed to any outlet (100m buffer) 4.4 (−1.7 10.4) 8.7 (3.1 14.3) 5.9 (0.7 11.0) 1.1 (−5.4 7.6)
Outlets per hour – ttopo-topeek data (100m buffer) 7.7 (2.8 12.6) 11.5 (3.8 19.1) 7.1 (2.9 11.4) 1.3 (−5.5 8.0)
Outlets per hour – one-topeek data (100m buffer) 7.9 (3.0 12.9) 11.8 (4.4 19.1) 7.4 (3.0 11.7) 1.2 (−5.7 8.0)
Outlets per hour – one-day data (100m buffer) 7.0 (2.2 11.8) (4.9 19.0) 6.4 (2.1 10.8) 0.7 (−6.4 7.7)