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Table 1 Single factor analysis of influencing factors for Blastocystis infection among HIV patients

From: Risk factors for Blastocystis infection in HIV/AIDS patients with highly active antiretroviral therapy in Southwest China

Variable

Blastocystis (+)

n = 12

N (%)

Blastocystis (−)

n = 299

N (%)

Univariate analysis

χ2

P value

OR (95% CI)

Age

<  40 year (n = 179)

8 (4.5)

171 (95.5)

0.424

0.515

0.67 (0.20–2.27)

≥ 40 year (n = 132)

4 (3.0)

128 (97.0)

Gender

Male (n = 149)

3 (2.0)

146 (5.6)

2.656

0.105

2.86 (0.76–10.78)

Female (n = 162)

9 (98.0)

153 (94.6)

Nationality

Minority nationality (n = 11)

1 (9.1)

11 (90.9)

0.356

0.38 (0.04–3.24)

Han nationality (n = 300)

10 (3.7)

289 (96.3)

Residence

Urban (n = 260)

10 (3.8)

250 (96.2)

0.001

0.980

1.02 (0.22–4.80)

Rural area (n = 51)

2 (3.9)

49 (96.1)

Education level

Primary school (n = 132)

6 (4.5)

126 (95.5)

1.583

0.633

Junior middle school (n = 161)

6 (3.7)

155 (96.3)

High school (n = 15)

0 (0.0)

15 (100.0)

University or collage (n = 3)

0 (0.0)

3 (100.0)

Marriage

Unmarried (n = 25)

0 (0.0)

25 (100.0)

4.487

0.213

Married (n = 259)

12 (4.6)

247 (95.4)

Married and living alone or widowed (n = 22)

0 (0.0)

22 (100.0)

Other (n = 5)

0 (0.0)

5 (100.0)

Family member

< 5 individuals (n = 48)

1 (2.1)

47 (97.9)

0.701

2.05 (0.26–16.27)

5 individuals (n = 263)

11 (42)

252 (95.8)

Body mass index

Underweight (n = 29)

2 (6.9)

27 (93.1)

2.862

0.210

Normal (n = 271)

9 (3.3)

262 (96.7)

Overweight (n = 11)

1 (9.1)

10 (90.7)

Drinking water

Boiled water (n = 291)

7 (2.4)

284 (97.6)

<  0.001

13.50 (3.80–47.70)

Un-boiled water (n = 20)

5 (25.0)

15 (75.0)

Water source

No-tap water (n = 11)

0 (0.0)

11 (100.0)

0.999

Tap water (n = 300)

12 (4.0)

288 (96.0)

Toilet type

Water wash toilet (n = 135)

3 (2.2)

132 (97.8)

1.722

0.789

2.37 (0.63–8.93)

Un-water wash toilet (n = 176)

9 (5.1)

167 (94.9)

Washing hand after defecation

No (n = 12)

2 (16.7)

10 (3.3)

0.071

0.17 (0.03–0.90)

Yes (n = 299)

10 (3.3)

289 (96.7)

Keeping pet

No (n = 230)

8 (3.5)

222 (96.5)

0.518

1.44 (0.44–4.92)

Yes (n = 81)

4 (4.9)

77 (95.1)

Raising animal

No (n = 146)

1 (0.7)

145 (99.3)

0.006

10.36 (1.32–81.23)

Yes (n = 165)

11 (6.7)

154 (93.3)

HIV infection route

Syringe (n = 18)

3 (16.7)

15 (83.3)

6.239

0.044

Mother to children (n = 6)

0 (0.0)

6 (100.00)

Sex (n = 287)

9 (3.1)

278 (96.9)

Take antiviral drug

No (n = 2)

0 (0.0)

2 (100.0)

0.999

1.04 (1.02–10.06)

Yes (n = 309)

12 (3.9)

297 (96.1)

Household member chronic diarrhea

No (n = 294)

10 (3.4)

2 (11.8)

0.134

3.79 (0.76–18.84)

Yes (n = 17)

2 (11.8)

15 (88.2)

CD4+ T cell count

< 500 (n = 139)

1 (0.6)

171 (99.4)

11.141

0.001

0.07 (0.01–0.53)

500 (n = 172)

10 (3.6)

268 (96.4)

HIV virus load

< 50 (n = 282)

7 (2.5)

275 (97.5)

0.002

8.18 (2.41–27.75)

50 (n = 29)

5 (17.2)

24 (82.8)

HIV clinical stage

I stage (n = 138)

7 (5.1)

131 (94.9)

2.439

0.486

II stage (n = 73)

3 (4.1)

70 (95.9)

III stage (n = 82)

2 (2.4)

80 (97.6)

IV stage (n = 18)

0 (0.0)

18 (100.0)

  1. The “–” symbol indicates the data was not be calculated
  2. OR Odd ratio, CI Confidence interval