Evaluating the Effectiveness of Print Based Environmental Health Intervention Education Among School Going Adolescents of Karachi, A Quasi Study

This study investigates the impact of school-based educational interventions on adolescents' knowledge and practices related to environmental health in Karachi, Pakistan. The methodology opted for this research is quasi experiment with three months intervention period. The research will begin with a baseline survey to assess adolescents' understanding of environmental health, green spaces, waste management, and associated health impacts. Schools are then engaged in creating and maintaining green spaces and adopting waste management practices. Two intervention arms are implemented: Arm 1 receives educational content through posters, while Arm 2 receives pamphlets. In March, schools are revisited to evaluate the maintenance of cleanliness and green spaces. Finally, in April, a post-intervention survey will be conducted to measure changes in knowledge and eco-friendly practices. The study aims to determine the effectiveness of posters versus pamphlets in enhancing knowledge and sustaining environmental practices among adolescents, thereby contributing to evidence-based strategies for promoting environmental health education in urban school settings.

Study Overview

• Status: Completed
• Conditions: Adolescent Health; Educational Intervention; Water-Borne Infectious Disease; Waste Management; Environmental Health; Green Spaces; Plantation; Safe Water
• Intervention / Treatment: Behavioral: Educational Intervention either from Poster or Infographic pamphlet

• Study Type: Interventional
• Enrollment (Actual): 500
• Phase: Phase 4

Contacts and Locations

Study Locations

• Pakistan
  • Sindh
    • Karachi, Sindh, Pakistan
      • Shah Faisal Town Karachi, Pakistan

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• The study will target only one mode of education in Karachi, i.e., the matriculation system, including both public and private schools to cover a broad segment of the adolescent student population.
• Schools registered with the Board of Secondary Education Karachi (BSEK) will be included, ensuring that students from both sectors will follow the same curriculum.
• Schools must have at least 30 students in each class from 6th to 10th grade, so that each class can serve as a stratum.
• Only schools that provide permission to conduct the study within their premises will be enrolled.
• Only students who provide assent and whose parents provide consent will be included

Exclusion Criteria:

• Any participant who plans to leave their school during the study period.
• Any participant who is not present during any round of the study, i.e., before and after the intervention.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Supportive Care
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: effectiveness of knowledge on environmental health, through Poster	Behavioral: Educational Intervention either from Poster or Infographic pamphlet; Age-appropriate sessions on climate science, health impacts (heat stress, vector-borne diseases, air pollution), mindful use of water, proper waste management and local relevance (e.g., Karachi's heatwaves, dengue outbreaks)
Experimental: effectiveness of knowledge on environmental health, through Infographic pamphlet	Behavioral: Educational Intervention either from Poster or Infographic pamphlet; Age-appropriate sessions on climate science, health impacts (heat stress, vector-borne diseases, air pollution), mindful use of water, proper waste management and local relevance (e.g., Karachi's heatwaves, dengue outbreaks)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Increased Knowledge about environmental Health	High Environmental & Health Awareness (28-36 points) Strong knowledge Excellent awareness of pollution, climate issues, and disease linkages Likely to engage in positive environmental behaviour Moderate Awareness (18-27 points) Good understanding but with some gaps Needs moderate reinforcement through school/community programs Low Awareness (0-17 points) Limited understanding Requires structured awareness sessions and visual learning tools	3 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Waterborne and Airborne Disease Knowledge	High Environmental & Health Awareness (28-36 points) Strong knowledge Excellent awareness of pollution, climate issues, and disease linkages Likely to engage in positive environmental behaviour Moderate Awareness (18-27 points) Good understanding but with some gaps Needs moderate reinforcement through school/community programs Low Awareness (0-17 points) Limited understanding Requires structured awareness sessions and visual learning tools	3 months

Collaborators and Investigators

• Sponsor: Bahria University

Study record dates

Study Major Dates

• Study Start (Actual): January 19, 2026
• Primary Completion (Actual): April 10, 2026
• Study Completion (Actual): April 19, 2026

Study Registration Dates

• First Submitted: January 16, 2026
• First Submitted That Met QC Criteria: January 23, 2026
• First Posted (Actual): February 2, 2026

Study Record Updates

• Last Update Posted (Actual): April 30, 2026
• Last Update Submitted That Met QC Criteria: April 26, 2026
• Last Verified: April 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Infections; Waterborne Diseases
• Other Study ID Numbers: 00008

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No