Objectives: Describe the management results of classroom hygiene in some primary schools in the Mekong Delta, period 2021 - 2022.
Research subjects and methods: A community intervention study with a control group was conducted on Khmer primary school students from grades 1 to 4, assessing desks, chairs, and lighting in all classrooms of two intervention primary schools and two control primary schools in the Mekong Delta from March 2021 to June 2022.
Research results: Before the intervention, the proportion of desks and chairs suitable for the students' height was low (17.7% in the control school and 17.4% in the intervention school). After adjusting the size of desks and chairs to suit the height of each student, the results showed that most of the desks and chairs in the 2 intervention schools were suitable for the height of the students (reaching 93%), while in the 2 control schools, this proportion was low (28.0%), DiD was 65.3% (p < 0.05). Regarding lighting intensity, before the intervention, the proportion of student seats with light intensity ≥ 300 Lux was low (72% in the 2 control schools and 70.3 in the 2 intervention schools). After the intervention, the proportion in the 2 intervention schools reached 100%, in the 2 control schools the proportion reached 80%, and DiD was 21.7% (p < 0.05).
Conclusion: The results of the intervention management on classroom hygiene were effective, with a difference-in-differences (DiD) increase of 65.3% in the proportion of desks and chairs suitable for student height and a DiD increase of 27.1% in the proportion of classroom lighting meeting or exceeding 300 lux.