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. 2017 Nov 14;7:15489. doi: 10.1038/s41598-017-15768-w

Table 1.

Characteristics of participants.

variables n %
Demographics
Gender
Male 903 60.08
Female 600 39.92
Age, median (IQR) years 38 (33, 42)
<35 years 460 30.61
≥35 years 1043 69.39
HIV-related factors
History of IDU a
Current IDU 23 1.53
Former IDU 311 20.69
Non IDU 1167 77.64
N/A 2 0.13
Number of HIV-related symptoms, median (IQR) 1 (0, 2)
Duration from HIV diagnosis
<1 year 11 0.73
1–2 year 134 8.92
3–4 year 331 22.02
≥5 years 1027 68.33
Duration from ART initiation
<1 year 65 4.32
1–3 year 174 11.58
3–4 year 373 24.82
≥5 years 891 59.28
History of EFV usage
Non-user 415 27.61
Former user 95 6.32
Current user 993 66.07
Latest CD4 count, median (IQR) (/µl)b 442 (322, 574)
<350 437 29.08
≥350 1065 70.86
N/A 1 0.07
Latest plasma viral load (copies/ml)b
<20 1261 83.9
≥20 240 15.97
N/A 2 0.13
Social factors
Residence
Hanoi 633 42.12
Others 866 57.62
N/A 4 0.27
Marital Status
Not married and not having a partner 111 7.39
Not married but having a partner 48 3.19
Married 1296 86.23
Others (divorced, widow, etc.) 48 3.19
Number of household members, median (IQR) 4 (3, 4)
Educational attainment c
Low 421 28.01
Middle 467 31.07
High 615 40.92
Employment
Not employed 332 22.09
Employed 1093 72.72
Retired 69 4.59
N/A 9 0.60
Individual income d
Low 382 25.42
Middle 719 47.84
High 319 21.22
N/A 83 5.52
Health insurance
No 280 18.63
Yes 1212 80.64
Unknown 11 0.73
Disclosure status
No 69 4.59
Yes 1433 95.34
N/A 1 0.07

N/A: missing value.

aIDU: injection drug user; current IDU: used injection drugs in the past 6 months; former IDU: history of injection drug use, but not used in the past 6 months; non-IDU: never used injection drugs.

bData at last clinic visit before the survey.

cLow: never went to school, primary school, or junior high school; Middle: high school; High: vocational school/college or university.

dLow: <1,500,000 Vietnamese dong (VND); Middle: 1,500,000–4,999,999 VND; High: ≥5,000,000 VND.