1. Water supply and sanitation affecting health

2. Presentation overview
Objectives
Vietnam National Health Survey
Diarrheal illness and poverty
Analysis of WSS and health
Recommendations

3. Background Objectives: Large sample (36,000 households, 61 provinces)
Assess health risks of drinking water supply and sanitation
Identify population at risk of illness
Assist in identifying water and sanitation sector priorities
Large sample (36,000 households, 61 provinces)
Information on;
sources of household drinking water supply,
sanitation facilities,
household behavior, e.g boiling and treating of drinking water,
identified pollution sources near dug wells,
prevalence and indicators of severity of diarrheal illness
socio-economic status, e.g. living standard, education level etc

4. Sources of drinking water

5. Types of toilets

6. Findings from VNHS data
WATER, SANITATION AND HEALTH
Findings from VNHS data
Source : Calculated from the Vietnam National Health Survey 2002.
Ministry of Health. Vietnam

8. Factors influencing ADI (under 5)
Factors influencing ADI (5 or older)

9. Factors influencing ADI (all population)
* Only for people using dug well

10. Factors influencing # of disease days of ADI (all ages)
Population by quintile have using dug well close to pollution source

11. Population using surface water by quintile

12. Population by quintile using dug well with nearby pollution source

13. Population with no toilet by quintile

14. % population with no toilet
% population using river, lake, spring, pond as water supply
% population with pollution source near drinking water source (i.e. dug well)

15. Proportion of population using dug well water
Proportion of population with pollution source near water source (% of population with dug well)
Proportion of population using dug well water

16. Treatment of Drinking Water

17. Population using treated water by quintile*

18. Recommendations
Priority should be given to providing WSS to those without any services.
Second priority should be to address dug well pollution. This requires further understanding of cost-effective sollutions
It seems less important to focus on upgrading of services for those already with basic coverage (other than polluted dug wells).
Additional health benefits could be gained by targeting poor households because of their higher ADI rates
Hygiene promotion should be an integral part of WSS provision
The study has identified provinces of particular priority for WSS programs

19. END