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Table 3 Blinder-Oaxaca decomposition of the prevalence of HIV infection among high-risk people, Tehran, Iran (2004–2018)

From: What explains gender inequality in HIV infection among high-risk people? A Blinder-Oaxaca decomposition

 

Prediction (%)

95% CI

Total gap (percent)a

Female

7.53***

6.90, 8.20

 

Male

12.03***

11.51, 12.54

 

Total gap

−4.50***

−5.33, −3.70

 

Due to endowment (explained)

 Age (year)

−0.36***

−0.49, − 0.22

7.89

Educational level

 Illiterate

0.001

−0.008, 0.01

−0.03

 Elementary

−0.05*

− 0.09, − 0.003

1.00

 Junior

− 0.09*

− 0.16, − 0.02

2.03

 High school

− 0.001

− 0.01, 0.01

0.02

 Academic

− 0.36***

− 0.53, − 0.20

8.09

Condom use

 Never

0.03

−0.01, 0.07

−0.58

 Rarely

0.001

−0.02, 0.02

−0.02

 Ever

0.014

−0.02, 0.05

−0.31

 Drug abuse (yes)

−0.86***

−1.25, − 0.46

19.07

 History of imprisonment (yes)

−1.07***

− 1.50, − 0.70

23.88

 Injection drug  (yes)

−2.22***

−2.70, − 1.74

49.33

 Heterosexual unsafe sex (yes)

1.34***

0.99, 1.68

−29.69

 Homosexual unsafe sex (yes)

−0.23**

− 0.38, − 0.09

5.15

 Job Exposure (yes)

− 2.77***

−3.35, − 2.19

61.54

 HIV + Spouse (yes)

0.51

−0.03, 1.05

−11.38

 Sub-total of gap (explained part)

−6.12***

−9.50, −2.73

136.00

Due to response (unexplained)

 Age (year)

−4.91

−14.82, 4.99

109.12

Educational level

 Illiterate

0.12

−0.14, 0.38

−2.66

 Elementary

0.063

−0.35, 0.47

−1.40

 Junior

−0.05

−0.75, 0.65

1.07

 High school

−0.41

−1.56, 0.74

9.11

 Academic

−1.91

−5.32, 1.49

42.44

Condom use

 Never

−0.31

−1.33, 0.72

6.78

 Rarely

−0.12

−1.79, 1.54

2.74

 Ever

0.23

−0.55, 1.00

−5.05

 Drug abuse (yes)

−0.32

−2.54, 1.91

7.06

 History of imprisonment (yes)

−4.06

−11.29, 3.17

90.22

 Injection drug (yes)

1.72

−1.20, 4.63

−38.20

 Heterosexual unsafe sex (yes)

−2.90

−7.63, 1.82

64.54

 Homosexual unsafe sex (yes)

−0.28

−0.80, 0.25

6.15

 Job Exposure (yes)

−0.56

−1.86, 0.73

12.54

 HIV + Spouse (yes)

0.08

−0.07, 0.24

−1.82

 Sub-total of gap (Unexplained part)

−13.62

−51.98, 24.75

302.65

 Interaction

3.10**

0.94, 5.25

−68.86

  1. aCalculated by dividing the determinant’s prediction value by the total gap (−4.5), * p < 0.05, ** p < 0.01, *** p < 0.001