OBJECTIVES: This study utilized a cross-sectional study design to determine the prevalence and intensity of STH infections among adolescent females and pregnant women, to describe the nutritional status of the two population groups in selected study sites in the Philippines, and to propose a scheme for classification of endemic sites as basis for conduct of control strategies.

METHODS: Parasitologic assessment was conducted through examination of collected stool samples using the Kato-Katz technique, while nutritional status was assessed through primary height and weight measurements.

RESULTS: Results of the parasitologic assessment in adolescent females showed an overall cumulative prevalence of 30.4% (12.5% - 61.8%) and a prevalence of heavy intensity infection of 7.9% (0.7% - 22.6%). In pregnant women, overall cumulative prevalence was 31.5% (13.2% - 75.8%) and prevalence of heavy intensity infection was 10.2% (0.9%- 39.6%).

CONCLUSION: Significant differences in prevalence in the different sentinel sites suggest the need to consider a modified classification scheme for endemic communities to determine the most cost-effective strategies for morbidity control. The utilization of this classification scheme alongside regular sentinel surveillance will help validate the scheme and contribute towards the development of more appropriate program guidelines for nationwide implementation.