Table 2.
Logistic regression models for different domestic drinking water choices
| Alternate | Bottled/Barreled | Filtrated | Bottled/Barreled Vs (Filtrated) | |||||
|---|---|---|---|---|---|---|---|---|
| |
cOR (95% CI) |
aOR (95% CI) |
cOR (95% CI) |
aOR (95% CI) |
cOR (95% CI) |
aOR (95% CI) |
cOR (95% CI) |
aOR (95% CI) |
|
Gender (Male) |
1.11 (0.91–1.35) |
---- |
1.09 (0.87–1.38) |
---- |
1.14 (0.87–1.51) |
---- |
0.96 (0.70–1.31) |
---- |
|
Age (18–35years) |
|
|
|
|
|
|
|
|
| <18 |
1.11 (0.52–2.38) |
---- |
1.02 (0.44–2.36) |
0.97 (0.24–2.04) |
1.36 (0.46–4.02) |
---- |
0.75 (0.24–2.31) |
---- |
| 35–59 |
0.62 (0.37–1.03) |
---- |
0.49* (0.27–0.88) |
0.45** (0.32–0.97) |
0.95 (0.45–2.04) |
---- |
0.51 (0.23–1.16) |
---- |
| ≥60 |
0.47* (0.26–0.86) |
---- |
0.33** (0.16–0.68) |
0.36** (0.10–0.73) |
0.83 (0.35–1.96) |
---- |
0.4 (0.15–1.05) |
---- |
|
Education (Lower level) |
1.57* (1.03–2.40) |
2.74** (1.38–5.44) |
1.61 (0.99–2.62) |
---- |
1.52 (0.85–2.71) |
---- |
1.06 (0.56–2.01) |
---- |
|
Annual Income (2308.1–4615) |
|
|
|
|
|
|
|
|
| ≤2,308 |
1.38 (0.30–6.33) |
2.38 (0.86–6.67) |
2.70 (0.58–12.54) |
1.35 (0.83–23.51) |
---- |
---- |
---- |
---- |
| 4,615.1–7,692 |
2.08** (1.20–3.58) |
5.26** (1.61–16.67) |
2.70** (1.44–5.07) |
3.08** (1.26–6.39) |
1.42 (0.67–2.99) |
---- |
1.91 (0.84–4.31) |
---- |
| 7,692.1- |
1.25 (0.64–2.45) |
3.57 (1.61–7.94) |
1.87 (0.88–3.97) |
1.14 (0.93–2.74) |
0.60 (0.20–1.84) |
---- |
3.10 (0.93–10.28) |
---- |
|
Housing Condition (CAT 1) |
|
|
|
|
|
|
|
|
| CAT 2 |
2.00 (0.86–4.62) |
---- |
1.94 (0.72–5.21) |
---- |
2.10 (0.56–7.89) |
2.48 (0.50–12.28) |
0.92 (0.20–4.31) |
---- |
| CAT 3 |
2.84** (1.27–6.38) |
---- |
2.96* (1.15–7.61) |
---- |
2.61 (0.72–9.43) |
3.02 (0.43–21.16) |
1.13 (0.26–5.01) |
---- |
| CAT 4 |
3.10* (1.04–9.23) |
---- |
2.96 (0.84–10.50) |
---- |
3.38 (0.66–17.25) |
3.14 (0.67–14.85) |
0.88 (0.137–5.576) |
---- |
| CAT 5 |
5.27** (1.99–13.97) |
---- |
2.75 (0.82–9.27) |
---- |
10.31** (2.61–40.82) |
17.90** (3.39–94.42) |
0.27 (0.05–1.36) |
---- |
| CAT 6 |
3.99** (1.57–10.10) |
---- |
3.59* (1.21–10.63) |
---- |
4.78* (1.18–19.31) |
4.82* (1.02–21.27) |
0.75 (0.15–3.72) |
---- |
|
Transparency (Normal) |
0.93 (0.55–1.57) |
---- |
0.72 (0.49–1.06) |
---- |
1.18 (0.83–1.68) |
---- |
0.61* (0.39–0.97) |
---- |
|
Colour (Normal) |
0.92 (0.59–1.44) |
---- |
0.58 (0.31–1.08) |
---- |
1.27 (0.82–1.97) |
---- |
0.46* (0.23–0.91) |
---- |
|
Taste (Good) |
3.50*** (2.65–4.63) |
5.48*** (3.50–8.56) |
4.04*** (2.98–5.49) |
6.44*** (3.91–10.60) |
2.78*** (1.97–3.91) |
5.04*** (2.74–9.26) |
1.46* (1.06–2.00) |
---- |
|
Smell (Normal) |
1.01 (0.72–1.41) |
---- |
0.84 (0.54–1.30) |
---- |
1.25 (0.83–1.90) |
---- |
0.67 (0.40–1.12) |
---- |
|
Worm founded (Never) |
1.14 (0.58–2.24) |
2.95* (1.28–6.81) |
0.59 (0.21–1.61) |
---- |
2.33* (1.08–5.04) |
3.35* (1.22–9.15) |
0.22** (0.07–0.66) |
---- |
|
Belief (Tap water) |
|
|
|
|
|
|
|
|
| Barrelled water |
19.49*** (7.65–49.66) |
8.62 *** (3.51–21.20) |
27.67*** (10.50–72.87) |
9.68*** (2.91–32.16) |
5.19* (1.18–22.74) |
5.14 (0.92–28.86) |
5.33* (1.40–20.36) |
5.61* (1.47–21.38) |
| Bottled water |
5.75*** (3.02–10.94) |
2.39** (1.32–4.23) |
7.06*** (3.49–14.28) |
3.61** (1.51–8.60) |
3.46* (1.28–9.38) |
2.59 (0.83–8.05) |
2.04 (0.72–5.77) |
2.55 (0.88–7.39) |
| Filtrated water | 6.60*** (3.73–11.69) |
3.04*** (1.81–5.10) |
3.18** (1.51–6.68) |
1.66 (0.64–4.31) |
12.60*** (6.15–25.79) | 11.54*** (5.05–26.39) |
0.25** (0.11–0.60) |
0.51** (0.11–0.56) |
* P -value < 0.05; ** P -value < 0.01; *** P -value < 0.001.
Crude and adjusted odds ratios and their 95% CI were shown above.
Tap water choice was the control in the first three models, while filtrated water was the control in the last model.
Housing condition was divided into 6 categories, category 1 (CAT 1) was apartments built before 1980’s.
Transparency, colour, taste, smell and worm ever founded were five aspects considering respondents’ household tap water.
Variables excluded from the models were illustrated as dashed lines.