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Exposure to Biocides and Cutaneous Adverse Effects among Thai Agricultural Workers

Exposure to Biocides and Cutaneous Adverse Effects among Thai Agricultural Workers

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20250814002
Enrollment
228
Registered
2025-08-14
Start date
2025-08-11
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cutaneous adverse effects associated with biocide exposure, including irritant contact dermatitis, allergic contact dermatitis, urticaria, and chemical burns. Biocides Pesticides Agriculture Farmers Occupational Exposure Skin Diseases Dermatitis, Contact Urticaria Chemical Burns Personal Protective Equipment

Interventions

Agricultural workers aged between 18 and 70 years from Nakhon Si Thammarat and Phatthalung provinces who have used or been exposed to biocides in the past 12 months. Participants are recruited through
Screening
Thai agricultural workers exposed to biocides

Sponsors

National Research Council of Thailand
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Age between 18 and 70 years 2. Currently engaged in agricultural work with experience of using or being exposed to biocides within the past 12 months 3. Willing to participate and provides written informed consent

Exclusion criteria

Exclusion criteria: 1. Pre-existing skin diseases unrelated to biocide exposure such as psoriasis, autoimmune blistering diseases, or vasculitis 2. Inability to communicate or provide complete information, such as having psychiatric disorders or intellectual disabilities 3. Unwillingness to participate in the study

Design outcomes

Primary

MeasureTime frame
Prevalence of skin disorders related to biocide exposure At the time of interview and examination during data collection Assessed through dermatologist-confirmed diagnosis and structured questionnaire, including dermatological examination and participant-reported symptoms

Secondary

MeasureTime frame
Severity of dermatological symptoms At single study visit Standardized clinical grading and participant-reported severity on structured questionnaire,Dermatology Life Quality Index total score (DLQI) At single study visit DLQI completed by participant,Distribution and morphology of skin lesions At single study visit Dermatological examination checklist (anatomic sites and lesion types recorded),Mucosal/ocular irritation symptoms At single study visit Structured questionnaire (yes/no and symptom details for eye, nasal, oral),Personal protective equipment adherence At single study visit Structured questionnaire (frequency and completeness of PPE use; composite adherence score) ,Type and intensity of biocide exposure At single study visit Structured questionnaire (biocide type, frequency, duration, method of application, environment)

Countries

Thailand

Contacts

Public ContactWeeratian Tawanwongsri

Walailak University, 222 Taiburi, Thasala, Nakhon Si Thammarat, Thailand 80160

weeratian.ta@gmail.com0655929789

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026