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Table 1 Demographic characteristics and laboratory test results of 689 male inmates at the enrolment, Bangkok Thailand, 2001–2002.

From: HIV infection and risk factors among Bangkok prisoners, Thailand: a prospective cohort study

Characteristics

Number (%)*

Age (years)

 

   Mean ± SD

32.3 ± 6.7

   Median (Range)

32(20–50)

Marital status

 

   Single

293 (42.6)

   Married

237 (34.5)

   Divorced, separated and widowed

157 (22.9)

Home town

 

   Bangkok and its suburbs

334 (48.5)

   Other locations in Thailand

310 (45.0)

   Outside Thailand (foreigners)

45 (6.5)

Highest education level

 

   Primary

354 (52.3)

   Secondary or Higher

323 (47.7)

Occupation before incarceration

 

   No occupation

44 (6.4)

   Labor

463 (67.2)

   Private business

116 (16.8)

   Others

66 (9.6)

Monthly income (Baht) excluding the unemployed**

 

   Mean ± SD

12,788 ± 25,157

   Median(Range)

6,000 (330–250,000)

Type of offense

 

   Narcotic-related

298 (45.9)

   Life- or sex-offended

179 (27.6)

   Theft or robbery

172 (26.5)

Term of sentence (years)

 

   Mean ± SD

18.9 ± 8.4

   Median (Range)

18(5.7–30.0)

Duration of sentence already served (years)

 

   Mean ± SD

5.8 ± 3.9

   Median(Range)

5.0(1.0–18.0)

Laboratory profiles (% positivity)

 

   Anti HIV antibody

175 (25.4)

   Anti HCV antibody

309 (44.9)

   HBs Antigen

77 (11.2)

   Anti HBc antibody

442 (64.2)

   Anti HBs antibody

286 (41.5)

   Anti Chlamydia IgM antibody

140 (20.3)

   VDRL with TPHA confirmation

22 (3.2)

   Anti HSV2 IgM antibody

72 (10.4)

   Urine opiates

78 (11.3)

   Urine metamphetamines

42 (6.1)

  1. Note: *The total numbers may not add up to 689 because of no responses from some participants. **1 US dollar = 43 Baht (approximately)