Mapping of Indonesians' Skin Type Based on Baumann Skin Type Indicator-Indonesia (BSTI-Ina) Questionnaire and Development of Artificial Intelligence Modelling BSTI-Ina: A Multicentric Study
Trial ID: NCT05844904
Status: UNKNOWN
Study type: OBSERVATIONAL
Start date: 2023-09-08
Completion date: 2023-12-01
Sponsor: Dr.dr.Irma Bernadette, SpKK (K)
Collaborators: Indonesian Society of Dermatology and Venereology; College of Dermatologist and Venereologist; Indonesia Medical Education and Research Institute
Conditions: Baumann Skin Type Indicator
Locations: Rumah Sakit Umum Pusat Prof. Dr. I Goesti Ngoerah Gde Ngoerah; Rumah Sakit Umum Pusat Dr. Kariadi; Rumah Sakit Umum Daerah Dr. Moewardi; Rumah Sakit Umum Pusat Nasional Dr. Cipto Mangunkusumo; Rumah Sakit Umum Daerah Dr. Saiful Anwar; Rumah Sakit Umum Daerah Dr. Soetomo; Rumah Sakit Umum Pusat Prof. dr. R. D. Kandou; Rumah Sakit Universitas Sumatera Utara; Rumah Sakit Umum Pusat Dr. dr. Wahidin Sudirohusodo; Rumah Sakit Umum Pusat Dr. Mohammad Hoesin; Rumah Sakit Umum Pusat Dr. Sardjito; Rumah Sakit Umum Pusat Dr. Hasan Sadikin; Rumah Sakit Umum Pusat Dr. M. Djamil
Countries: Indonesia; Indonesia; Indonesia; Indonesia; Indonesia; Indonesia; Indonesia; Indonesia; Indonesia; Indonesia; Indonesia; Indonesia; Indonesia
Enrollment: 1950
Age range: 18 Years - 59 Years
Sex: ALL

Summary:
The goal of this observational study is to learn about the skin type of Indonesians based on Baumann Skin Type Indicator Questionnaire in Indonesian language version, and to develop artificial intelligence modelling of BSTI-Ina. The main questions it aims to answer are:

1. What is the measurement of the validity and reliability of BSTI-Ina questionnaire year 2006 version which was adapted from BSTI questionnaire in English language year 2006 version as a specific measurement to identify skin type?
2. What is the measurement of the validity and reliability of BSTI-Ina questionnaire year 2022 version which was adapted from BSTI questionnaire in English language year 2022 version as a specific measurement to identify skin type?
3. What is the comparison of the validity and reliability between BSTI-Ina questionnaire year 2006 and year 2022 to determine Indonesian adult population's skin type?
4. How is the mapping of Indonesians' skin type based on BSTI-Ina?
5. What is the proportion of each skin type based on BSTI-Ina in Indonesian population?
6. What is the proportion of each skin type based on BSTI-Ina in Indonesian population sociodemographically?
7. How can Artificial Intelligence help categorize skin type based on BSTI-Ina automatically?

Participants are males and females between 18-59 year old. Participants will be asked to fill BSTI-Ina questionnaire. Participants then will be photographed in five different positions.

Eligibility criteria:
Inclusion Criteria:

* Males and females age 18-59 year old.
* Fitzpatrick's skin type III-V
* Educational degree of minimum high school
* Can speak Indonesian
* Can read
* Willing to participate and sign informed consent

Exclusion Criteria:

* Participant who doesn't fill the questionnaire completely
* Participant with skin disease involving \>25% facial area

Outcomes:
Baumann Skin Type Indicator questionnaire 2006 version in Indonesian language; Baumann Skin Type Indicator questionnaire 2022 version in Indonesian language; More valid and reliable version of Baumann Skin Type Indicator-Ina questionnaire (2006 or 2022 version); Mapping of Indonesian population's skin type based on Baumann Skin Type Indicator-Ina; Capability of artificial intelligence model to categorize skin type based on Baumann Skin Type Indicator-Ina