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Table 3 Fixed parameters and data sources in the Water Chlorination Model for children under five

From: Modeling health impact of global health programs implemented by Population Services International

Parameter

Input

Source

Protective effectiveness of chlorinated, point-of-use water treatment products

47%

Clasen et al., 2006 [21]

Wastage rate of household water treatment products

15%

Communication with PSI water treatment technical experts

Liters of water treated per unit of product:

 

Product usage guidelines

   • Safe water solution (various brand names)

1000

 

   • PUR

10

 

   • Aquatabs

20

 

Liters of water per person per day for drinking and cooking in households with unpiped water

3

Tumwine et al., 2002 [19]; Thompson et al., 2003 [20]

Duration of diarrhea episodes (years)

0.03

Lopez et al., 2006 [17]

Disability weight of diarrhea episodes

0.105

Mathers et al., 2006 [18]

Age at death from diarrheal disease for children under five (years)

1.8

Calculated based on IMR, U5MR and proportion of under-five deaths due to diarrhea from:

WHO, 2007 [37];

Black et al., 2010 [38]

Life expectancy (years)

83.1

WHO, 2011 [35]