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Table 2 Results of Chi-square test for association between socio-demographic and HIV status (N = 14,779

From: Spatial analysis of factors associated with HIV infection in Malawi: indicators for effective prevention

Variables

HIV Status

Chi-square; P-value

Negative

Positive

 

n (%)

n (%)

 

Gender

  

χ2 = 60.894; p < 0.001

 Male

6543 (92.9%)

499 (7.1%)

 

 Female

6904 (89.2%)

833 (10.8%)

 

Age

  

χ2 = 647.472, p < 0.001

 15–19

3333 (97.9%)

73 (2.1%)

 

 20–24

2862 (96.0%)

120 (4.0%)

 

 25–29

2031 (92.0%)

176 (8.0%)

 

 30–34

1742 (86.8%)

265 (13.2%)

 

 35–39

1461 (84.9%)

259 (15.1%)

 

 40–44

1013 (83.0%)

208 (17.0%)

 

 45–49

750 (82.0%)

165 (18.0%)

 

 50+

256 (79.5%)

66 (20.5%)

 

Education

  

χ2 = 23.031, p < 0.001

 No education

1177 (87.8%)

163 (12.2%)

 

 Primary

8092 (91.3%)

774 (8.7%)

 

 Secondary

3678 (91.7%)

332 (8.3%)

 

 Post-Secondary

499 (88.8%)

63 (11.2%)

 

Marital status

  

χ2 = 448.486, p < 0.001

 Never Married

4230 (97.0%)

129 (3.0%)

 

 Currently Married

8241 (89.8%)

934 (10.2%)

 

 Ever Marrieda

976 (78.5%)

268 (21.5%)

 

Religion

  

χ2 = 6.103, p = 0.192

 Catholic

2566 (91.9%)

227 (8.1%)

 

 Church of Central Africa Presbyterian.

2369 (91.5%)

220 (8.5%)

 

 Other Protestant Christians

6667 (90.5%)

697 (9.5%)

 

 Islam

1606 (90.9%)

161 (9.1%)

 

 No religion/others

238 (89.5%)

28 (10.5%)

 

Age at first sex

  

χ2 = 139.621, p < 0.001

 Never had sex/never had a partner

1815 (98.2%)

33 (1.8%)

 

 < 16

4111 (89.2%)

498 (10.8%)

 

 16–17

2821 (90.4%)

298 (9.6%)

 

 18–19

2719 (90.4%)

289 (9.6%)

 

 20+

1981 (90.3%)

214 (9.7%)

 

Recent Sexual activity

  

χ2 = 142.181, p < 0.001

 Never had sex

1815 (98.2%)

33 (1.8%)

 

 Active last 4 weeks

7618 (90.5%)

803 (9.5%)

 

 Not active last 4 weeks

4014 (89.0%)

496 (11.0%)

 

Total number of lifetime sexual partners

  

χ2 = 390.753; p < 0.001

0

1815 (98.2%)

33 (1.8%)

 

 1

4081 (95.2%)

204 (4.8%)

 

 2

3045 (89.0%)

378 (11.0%)

 

 3–4

2710 (86.1%)

437 (13.9%)

 

 5–9

1262 (88.4%)

165 (11.6%)

 

 10+

490 (82.2%)

106 (17.8%)

 

 Undisclosed

43 (84.3%)

8 (15.7%)

 

Use condom for most recent sex

  

χ2 = 27.044, p < 0.001

 No

8269 (90.5%)

869 (9.5%)

 

 Yes

1931 (89.6%)

224 (10.4%)

 

 Not had recent sex

3247 (93.1%)

240 (6.9%)

 

Extra marital/partner sexual partners

  

χ2 = 19.451, p < 0.001

 None

11,008 (90.8%)

1120 (9.2%)

 

 1

2129 (91.6%)

196 (8.4%)

 

 2+

310 (95.4%)

15 (4.6%)

 

 Undisclosed

0 (0)

1 (100.0%)

 

Had any STI last 12 months

  

χ2 = 62.122; p < 0.001

 No

13,134 (91.2%)

1260 (8.8%)

 

 Yes

269 (79.1%)

71 (20.9%)

 

Don’t Know

44 (97.8%)

1 (2.2%)

 

Household wealth index

  

χ2 = 63.130; p < 0.001

 Poor

5011 (92.7%)

396 (7.3%)

 

 Rich

5298 (91.4%)

500 (8.6%)

 

 Richest

3138 (87.8%)

436 (12.2%)

 

Rural/urban Residence

  

χ2 = 144.740; p < 0.001

 Urban

2309 (85.0%)

407 (15.0%)

 

 Rural

11,138 (92.3%)

925 (7.7%)

 

Region

  

χ2 = 251.559; p < 0.001

 Northern

1710 (94.5%)

100 (5.5%)

 

 Central

6005 (94.3%)

363 (5.7%)

 

 Southern

5732 (86.8%)

870 (13.2%)

 
  1. aEver Married: included those who were divorced, separated and widowed