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Table 2 Correlation coefficients with 95% confidence intervals and Cronbach’s Alpha reliability coefficients

From: Validation of commercial business lists as a proxy for licensed alcohol outlets

 

All

Rural

Sub-Urban

Urban Core

(N = 5528)

(n = 113)

(n = 356)

(n = 5059)

Proximity

r[95% CI]; α

r[95% CI]; α

r[95% CI]; α

r[95% CI]; α

Euclidean Distance(miles)

0.83 [0.82, 0.84]; 0.90

0.75 [0.66, 0.82]; 0.85

0.82 [0.78, 0.85]; 0.89

0.82 [0.81, 0.83]; 0.90

Network Time (minutes)

0.86 [0.85, 0.86]; 0.92

0.66 [0.55, 0.76]; 0.90

0.84 [0.80, 0.87]; 0.90

0.90 [0.90, 0.91]; 0.95

Network Distance (miles)

0.77 [0.76, 0.78]; 0.87

0.47 [0.32, 0.60]; 0.91

0.84 [0.81, 0.87]; 0.91

0.85 [0.84, 0.86]; 0.92

Density

 KDE (outlets per sqmi)

0.98 [0.98, 0.98]; 0.97

0.91 [0.87, 0.94]; 0.94

0.89 [0.86, 0.91]; 0.94

0.98 [0.98, 0.98]; 0.96

 2 mi Radius (count)

0.98 [0.97, 0.98]; 0.99

0.91 [0.88, 0.94]; 0.94

0.89 [0.87, 0.91]; 0.94

0.97 [0.97, 0.98]; 0.97