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. 2011 Feb 21;8(2):565–578. doi: 10.3390/ijerph8020565

Table 3.

Logistic Regression for regular bottled water users (N = 2,850).

Variables OR CI 95%
Surface water quality 1.049 0.874–1.259
Ground water quality 0.661*** 0.566–0.771
Environmental attitudes 0.973 0.925–1.024
Age 0.984*** 0.979–0.989
Community size 1.046 0.981–1.116
Education 1.039 0.965–1.120
Gender (control: male) 1.243** 1.035–1.493
Drinking water (control: safe) 1.742*** 1.307–2.323
Region (control: region 9)
Region 4
Region 6
Region 7
Region 8

0.988
1.144
0.541 ***
0.528 ***

0.785–1.243
0.896–1.461
0.413–0.708
0.413–0.676
Small water supply systems
Private water supply
Municipal water supply

1.746**
0.896

0.560–0.993
0.709–1.132
Pseudo R2 (Nagelkerke) 0.094

Note:

*

P < 0.10;

**

P < 0.05;

***

P < 0.001.