Wash hands | Survey year | Relative difference and p value | ||||
---|---|---|---|---|---|---|
 | 2006 | 2009 | 2011 | 2006-2009 | 2009-2011 | 2006-2011 |
Before taking food | Â | Â | Â | |||
Soap | 7.9 | 20.0 | 21.8 | 153.16 (p<0.01) | 1.8 (p<0.01) | 13.8(p<0.01) |
Water | 84.3 | 77.0 | 75.5 | −8.66 (p<0.01) | −1.5 (p<0.01) | −8.8(p<0.01) |
Don’t wash | 7.8 | 3.0 | 2.7 |  |  |  |
Before serving food | Â | Â | Â | |||
Soap | 1.0 | 1.9 | 3.6 | 90.0 (p<0.01) | 89.47 (ns) | 260 (p<0.01) |
Water | 9.8 | 9.4 | 10.0 | −4.08 (ns) | 6.38 (ns) | 2.04 (ns) |
Don’t wash | 89.2 | 88.7 | 86.4 |  |  |  |
Before cooking | Â | Â | Â | |||
Soap | 3.3 | 7.1 | 9.1 | 115.15 (p<0.01) | 28.17 (p<0.01) | 175.76 (p<0.01) |
Water | 27.1 | 37.1 | 30.8 | 36.90 (p<0.01) | −17 (p<0.01) | 13.65 (p<0.01) |
Don’t wash | 69.6 | 55.7 | 60.0 |  |  |  |
After defecation | Â | Â | ||||
Soap | 71.6 | 86.2 | 88.1 | 20.39 (p<0.01) | 2.04 (p<0.01) | 23.04 (p<0.01) |
Water | 19.2 | 9.6 | 8.8 | −50.0 (p<0.01) | −8.33 (p<0.01) | −54.17 (p<0.01) |
Don’t wash | 9.2 | 4.2 | 3.1 |  |  |  |
N | 26,404 | Â | Â | Â |