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Table 5

Logistic regression summary for predicting water fountain use on-campus (n = 3,177)

PredictorBetaStandard errorsOdd ratios95% Confidence intervalWald statisticp
Female −0.40 0.08 0.67 [0.57, 0.79] 22.99 0.001 
Age −0.01 0.01 0.99 [0.97, 1.00] 2.76 0.097 
Origin from West Virginia −0.63 0.08 0.53 [0.45, 0.62] 60.29 <0.001 
Student type (control Freshmen)     79.43 <0.001 
 Sophomore −0.13 0.15 0.88 [0.65, 1.18] 0.76 0.383 
 Junior −0.04 0.15 0.96 [0.72, 1.23] 0.09 0.769 
 Senior −0.13 0.15 0.88 [0.66, 1.17] 0.75 0.387 
 Graduate or professional 0.80 0.14 2.23 [1.68, 2.95] 31.15 <0.001 
Organoleptic perceptions 0.28 0.06 1.32 [1.18, 1.49] 21.75 <0.001 
Perceived health risks −0.17 0.07 0.85 [0.74, 0.97] 5.64 0.018 
Environmental concern 0.29 0.05 1.33 [1.21, 1.47] 33.71 <0.001 
Trust in EPA −0.00 0.01 1.00 [0.98, 1.02] 0.04 0.839 
Trust in US government −0.00 0.01 1.00 [0.98, 1.02] 0.01 0.933 
Unfiltered tap water use at home 0.42 0.09 1.52 [1.27, 1.81] 21.61 <0.001 
Pseudo R2 (Nagelkerke) 0.146 
PredictorBetaStandard errorsOdd ratios95% Confidence intervalWald statisticp
Female −0.40 0.08 0.67 [0.57, 0.79] 22.99 0.001 
Age −0.01 0.01 0.99 [0.97, 1.00] 2.76 0.097 
Origin from West Virginia −0.63 0.08 0.53 [0.45, 0.62] 60.29 <0.001 
Student type (control Freshmen)     79.43 <0.001 
 Sophomore −0.13 0.15 0.88 [0.65, 1.18] 0.76 0.383 
 Junior −0.04 0.15 0.96 [0.72, 1.23] 0.09 0.769 
 Senior −0.13 0.15 0.88 [0.66, 1.17] 0.75 0.387 
 Graduate or professional 0.80 0.14 2.23 [1.68, 2.95] 31.15 <0.001 
Organoleptic perceptions 0.28 0.06 1.32 [1.18, 1.49] 21.75 <0.001 
Perceived health risks −0.17 0.07 0.85 [0.74, 0.97] 5.64 0.018 
Environmental concern 0.29 0.05 1.33 [1.21, 1.47] 33.71 <0.001 
Trust in EPA −0.00 0.01 1.00 [0.98, 1.02] 0.04 0.839 
Trust in US government −0.00 0.01 1.00 [0.98, 1.02] 0.01 0.933 
Unfiltered tap water use at home 0.42 0.09 1.52 [1.27, 1.81] 21.61 <0.001 
Pseudo R2 (Nagelkerke) 0.146 
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