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Table 2 Demographic and behavioral characteristics of Vietnamese FSW by different years (2010–2014)

From: Human immunodeficiency virus, syphilis and hepatitis C virus prevalence trends among cross-border migrant Vietnamese female sex workers in Guangxi, China

  

2010 (N = 49)

2011 (N = 110)

2012(N = 166)

2013 (N = 343)

2014 (N = 358)

Overall (N = 1026)

p-value

p-trend

  

% (n)

% (n)

% (n)

% (n)

% (n)

% (n)

  

Age

>25

59.18 (29)

48.18 (53)

51.20 (85)

53.64 (184)

58.10 (208)

54.48 (559)

0.2970

0.1700

<=25 yrs

40.82 (20)

51.82 (57)

48.80*81)

46.36 (159)

41.90 (150)

45.52 (467)

Marital status

Not married

57.14 (28)

52.73 (58)

56.02 (93)

51.90 (178)

43.85 (157)

50.1 (514)

0.0470

0.0100

Married

42.86 (21)

47.27 (52)

43.98 (73)

48.10 (165)

56.15 (201)

49.9 (512)

Length of working

<6 m

18.37 (9)

64.55 (71)

39.63 (65)

56.85 (195)

48.60 (174)

50.2 (514)

0.0000

0.1560

> = 6 m

81.63 (40)

35.45 (39)

60.37 (99)

42.15 (148)

51.40 (184)

49.80 (510)

Education

<MS

61.22 (30)

56.36 (62)

54.88 (90)

41.69 (143)

53.91 (13)

50.59 (518)

0.0002

0.2150

> = MS

38.78 (19)

43.64 (48)

45.12 (74)

58.31 (200)

46.09 (165)

49.41 (506)

Community service

Yes

95.92 (47)

73.47 (72)

90.96 (151)

93.0 (319)

86.87 (311)

88.76 (900)

0.0000

0.4490

No

4.08 (2)

26.53 (26)

9.04 (15)

7.00 (24)

13.13 (47)

11.24 (114)

Condom use in the last sex

No

16.67 (8)

15.74 (17)

13.25 (22)

7.89 (27)

3.08 (11)

8.33 (85)

0.0000

0.0000

Yes

83.33 (40)

84.26 (91)

86.75 (144)

92.11 (315)

96.92 (346)

91.67 (936)

Condom use in the last month

Inconsistent

44.9 (22)

39.81 (43)

32.73 (54)

21.83 (74)

17.6 (63)

25.12 (256)

0.0000

0.0000

Consistent

55.1 (27)

60.19 (65)

67.27 (111)

78.17 (265)

82.40 (295)

74.88 (763)

Drug use

No

95.92 (47)

99.08 (108)

96.39 (160)

96.79 (332)

96.65 (346)

96.88 (993)

0.7170

0.6120

Yes

4.08 (2)

0.92 (1)

3.61 (6)

3.21 (11)

3.35 (12)

3.12 (32)

HIV knowledge

<=5

59.18 (29)

34.55 (38)

62.65 (104)

54.81 (188)

60.34 (216)

56.04 (575)

0.0000

0.0110

>5

40.82 (20)

65.45 (72)

37.35 (62)

45.19 (155)

39.66 (142)

43.96 (451)

Types of venues

Low-paying

83.67 (41)

72.48 (79)

73.49 (122)

50.00 (161)

48.74 (174)

57.33 (577)

0.0000

0.0000

Medium-paying

6.12 (3)

17.43 (19)

19.28 (32)

43.48 (140)

50.70 (181)

37.39 (375)

High-paying

10.20 (5)

10.09 (11)

7.23 (12)

6.52 (21)

0.56 (2)

5.08 (51)

Prevalence (%,95 % CI)

HIV

8.20 % (0.52 %,15.88 %)

5.50 % (1.24 %,9.76 %)

3.60 % (1.34 %,5.06 %)

3.20 % (1.34 %,5.06 %)

1.70 % (0.36 %,3.04 %)

3.22 % (2.12 %,4.28 %)

0.0770

0.0050

Syphilis

8.20 % (0.52 %,15.88 %)

9.10 % (3.73,14.47 %)

9.60 % (5.12 %,14.08 %)

7.90 % (5.05 %,10.75 %)

3.90 % (1.89 %,5.91 %)

6.92 % 95.35 %,8.45 %)

0.0800

0.0210

HCV

0.00 % (0.00 %,0.00 %)

2.70 % (−0.33 %,5.73 %)

2.40 % (0.07 %,4.73 %)

3.50 % (1.56 %,5.44 %)

2.20 % (0.68 %,3.72 %)

2.63 % (1.63 %,.57 %)

0.6290

0.6660