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Table 1 General characteristics of participants

From: Seroprevalence and factors associated with hepatitis B infection among the hill tribe adult population in Thailand: a cross-sectional study

Characteristic Number Percent
Total 1491 100.0
Sex
 Male 585 39.2
 Female 906 60.8
Age (years)
  < 30 66 4.4
 30–60 1212 81.3
  > 60 213 14.3
Mean = 48.9 years, SD = 11.0, Min = 25, Max = 78
Marital status
 Single 73 4.9
 Married 1282 86.0
 Ever married 136 9.1
Education
 Illiterate 819 54.9
 Primary school 383 25.7
 Secondary school 217 14.6
 High school and above 72 4.8
Religion
 Buddhist 830 55.7
 Christian 661 44.3
Tribe
 Akha 295 19.8
 Lahu 346 23.2
 Hmong 299 20.1
 Yao 167 11.2
 Lisu 68 4.6
 Karen 316 21.2
Having Thai ID card
 Yes 1420 95.2
 No 71 4.8
Occupation
 Farmer 1302 87.3
 Working in a trade 36 2.4
 Daily wage employee 153 10.3
Right to access free health care services
 Thai universal health scheme 1361 91.3
 State enterprise officer 15 1.0
 Social security scheme 40 2.7
 Private insurance 4 0.3
 No 71 4.8
Number of family members (persons)
  < 4 725 48.6
 4–7 596 40.0
  > 7 170 11.4
Annual income (baht)
  < 10,000 158 10.6
 10,001-50,000 929 62.3
  > 50,000 404 27.1