Table 3 Factors associated with partner’s HIV positive diagnosis (n = 5,021 newly tested partners)

IC sex (ref = female)

Male

1.12

(0.95, 1.31)

0.18

IC age (continuous)

Each 5-year increase

1.05

(1.00, 1.10)

0.04

1.00

(0.93, 1.07)

0.92

IC reason for testing at own HIV diagnosis (ref = no)

PWID

1.34

(1.10, 1.63)

0.004

1.32

(1.01, 1.71)

0.04

MSM

1.40

(0.79, 2.49)

0.25

HIV + partner

1.56

(1.24, 1.96)

 < 0.001

1.71

(1.29, 2.26)

 < 0.001

Pregnancy

0.69

(0.54, 0.88)

0.003

1.32

(0.98, 1.79)

0.07

IC number of partners (ref = one)

Multiple

1.05

(0.85, 1.30)

0.65

IC recency of HIV diagnosis (ref = recently diagnosed)

Established IC (> 6 months)

0.16

(0.12, 0.22)

 < 0.001

0.22

(0.16, 0.26)

 < 0.001

IC HIV viral load (VL) status (ref = VL <  = 1000)

Unsuppressed

4.86

(3.62, 6.52)

 < 0.001

1.92

(1.44, 2.26)

 < 0.001

VL not available

2.79

(2.14, 3.64)

 < 0.001

1.32

(0.99, 1.74)

0.06

Partner sex (ref = female)

Male (ref = female)

1.07

(0.91, 1.26)

0.40

Partner age (continuous

Each 5-year increase

1.14

(1.09, 1.18)

 < 0.001

1.06

(1.00, 1.13)

0.06

Partner type (ref = sexual)

Needle-sharing

1.46

(1.01, 2.10)

0.04

1.19

(0.78, 1.83)

0.42

Child

0.11

(0.06, 0.20)

 < 0.001

0.11

(0.05, 0.26)

 < 0.001

Mode of partner notification (ref = client notification)

Contract

0.89

(0.37, 2.10)

0.78

0.81

(0.30, 2.18)

0.68

Provider

1.70

(1.28, 2.27)

 < 0.001

1.64

(1.18, 2.28)

 < 0.01

Joint

1.09

(0.87, 1.35)

0.45

0.98

(0.77, 1.26)

0.90