Table 2 Risk factors associated with late presentation (logistic regression model), Guangxi, 2012–2016

Gender

 Male

1.51 (1.45–1.58)

1.43 (1.36–1.50)

 Female

Reference

Reference

Age (years)

 15–30

Reference

Reference

 31–50

2.15 (2.03–2.27)

1.68 (1.58–1.79)

 > 50

2.89 (2.73–3.06)

1.97 (1.85–2.11)

Occupation

 Migrant workers

1.55 (1.48–1.62)

 Other

Reference

Marital status

 Married

1.41 (1.34–1.48)

 Divorced or widowed

1.89 (1.76–2.02)

 Single

Reference

Ethnic

 Han

1.17 (1.06–1.29)

 Zhuang

1.11 (1.00–1.23)

 Others

Reference

Level of education

 Primary/no education

1.58 (1.49–1.67)

 Secondary/university

Reference

HIV transmission group

 Heterosexual sex

2.81 (2.56–3.10)

2.11 (1.90–2.34)

 PWID

1.39 (1.20–1.62)

1.55 (1.30–1.84)

 Other

2.40 (1.82–3.13)

2.22 (1.67–2.95)

 MSM

Reference

Reference

Reason for HIV testing

 STI clinics

1.25 (1.11–1.41)

1.21 (1.07–1.37)

 Premarital/pregnancy screening

0.49 (0.45–0.54)

0.63 (0.58–0.69)

 Medical examination

0.42 (0.31–0.56)

0.47 (0.35–0.63)

 Penitentiary

0.49 (0.44–0.55)

0.52 (0.45–0.59)

 HIV + couple or partner

0.83 (0.76–0.91)

0.83 (0.76–0.91)

 Pre-surgery

1.08 (0.99–1.17)

0.94 (0.87–1.02)

 Hospital

2.04 (1.93–2.15)

1.74 (1.65–1.84)

 Blood testing of the blood receivers^a

2.12 (1.65–2.73)

1.75 (1.36–2.26)

 Other

0.85 (0.78–0.93)

0.70 (0.64–0.76)

 VCT

Reference

Reference