Table 2 Analysis of HIV-1 transmission strain sources among recently infected individuals in Guangxi, China.

From: HIV-1 Transmissions Among Recently Infected Individuals in Southwest China are Predominantly Derived from Circulating Local Strains

Characteristics

No. of cases

Strains circulating in Guangxi

Strains circulating outside Guangxi

χ2

p

No.

%

No.

%

Total

 

229

213

93.0

16

7.0

  

Sex

Female

81

79

97.5

2

2.5

  

Male

148

134

90.5

14

9.5

3.936

0.047

Age (years)

18–25

33

26

78.8

7

21.2

  

26–49

101

95

94.1

6

5.9

  

≥50

95

92

96.8

3

3.2

12.589

0.002

Ethnicitya

Han

153

142

92.8

11

7.2

  

Other

76

71

93.4

5

6.6

0.029

0.864

Marital Status

Married

132

128

97.0

4

3.0

  

Unmarried

62

53

85.5

9

14.5

  

Divorced/widowed

35

32

91.4

3

8.6

8.723

0.013

Regionb

CSR

117

111

94.9

6

5.1

  

NSR

112

102

91.1

10

8.9

1.272

0.259

Risk Groupc

Hetero

202

190

94.1

12

5.9

  

MSM

18

14

77.8

4

22.2

  

Other

9

9

100

0

0

7.445

0.024

  1. aOther minority ethnicities, consisting of Zhuang, Yao, Mulao, Tujia, and Dong.
  2. bCSR, central and southwestern region, consisting of Nanning, Guigang, Laibin, Qinzhou, Baise, Beihai, Chongzuo, and Fangchenggang; NSR, northwestern and southeastern region, consisting of Guilin, Liuzhou, Hechi, Yulin, Hezhou, and Wuzhou.
  3. cHetero, heterosexual; MSM, men who have sex with men; Other, intravenous drug users and unknown.