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Table 2 Binary logistic regression results of associated factors of hypertension

From: Prevalence and factors associated with hypertension among older people living with HIV in South Africa

Explanatory variables

Model I

Model II

Model III

Model IV

 

OR (95% CI)

AOR (95% CI)

AOR (95% CI)

AOR (95% CI)

Socio-demographics

Age

 50–59

Ref

Ref

Ref

Ref

 60–69

1.6 [0.99,2.48]

1.7* [1.03,2.69]

1.8* [1.08,2.89]

2.2** [1.30,3.84]

 70–79

2.1* [1.11,4.04]

2.3* [1.18,4.49]

2.3* [1.17,4.68]

2.8** [1.37,5.82]

 80 + 

2.6* [1.11,5.88]

2.8* [1.19,6.58]

3.0* [1.20,7.55]

4.9** [1.68,14.05]

Sex

 Male

Ref

Ref

Ref

Ref

 Female

5.9*** [3.20,10.74]

5.9*** [3.07,11.22]

5.5*** [2.75,10.85]

5.5*** [2.67,11.12]

Marital status

 Married

Ref

Ref

Ref

Ref

 Separated/

divorced

0.6 [0.24,1.50]

0.6 [0.22,1.41]

0.6 [0.23,1.66]

0.7 [0.27,2.00]

 Never married

0.8 [0.47,1.52]

0.9 [0.47,1.62]

0.9 [0.47,1.73]

0.8 [0.40,1.58]

 Widowed

0.8 [0.48,1.36]

0.8 [0.48,1.43]

0.9 [0.51,1.60]

0.8 [0.45,1.55]

Educational level

 No education

Ref

Ref

Ref

Ref

 Basic

0.8 [0.56,1.27]

0.8 [0.54,1.26]

0.8 [0.54,1.28]

0.8 [0.51,1.27]

 Secondary and above

0.3 [0.04,1.70]

0.2 [0.02,2.06]

0.2 [0.02,2.41]

0.2 [0.02,1.82]

Employment

 Not working

Ref

Ref

Ref

Ref

 Working

0.7 [0.34,1.36]

0.6 [0.31,1.34]

0.6 [0.28,1.28]

0.9 [0.39,1.99]

Body mass index

 Underweight

Ref

Ref

Ref

Ref

 Normal

0.9 [0.37,2.42]

0.9 [0.35,2.75]

1.0 [0.35,3.09]

0.9 [0.28,2.92]

 Overweight

1.0 [0.40,2.75]

1.0 [0.36,1.80]

1.1 [0.36,3.47]

1.1 [0.32,3.59]

 Obese

1.2 [0.47,3.09]

1.2 [0.44,3.51]

1.2 [0.42,3.66]

1.2 [0.37,3.89]

Wealth status

 Poorest

Ref

Ref

Ref

Ref

 Poorer

0.9 [0.50,1.74]

0.8 [0.46,1.61]

0.7 [0.37,1.43]

0.6 [0.29,1.25]

 Middle

1.0 [0.55,1.99]

0.9 [0.48,1.81]

0.9 [0.42,1.71]

0.6 [0.30,1.38]

 Richer

0.7 [0.37,1.29]

0.7 [0.37,1.29]

0.6 [0.31,1.20]

0.5 [0.26,1.10]

 Richest

1.1 [0.53,2.09]

1.0 [0.49,2.05]

1.0 [0.47,2.12]

0.7 [0.32,1.74]

Comorbidity

 Ever diagnosed with depression

  No

 

Ref

Ref

ref

  Yes

 

1.5 [0.68,3.43]

1.5 [0.65,3.60]

1.4 [0.57,3.29]

 Ever diagnosed with heart disease

  No

 

Ref

Ref

Ref

  Yes

 

1.0 [0.21,5.05]

1.3 [0.23,7.17]

1.7 [0.22,13.44]

 Ever diagnosed with arthritis

  No

 

Ref

Ref

Ref

  Yes

 

1.3 [0.79,2.08]

1.4 [0.84,2.26]

1.5 [0.87,2.62]

 Ever diagnosed with asthma

  No

 

Ref

Ref

Ref

  Yes

 

0.7 [0.21,2.07]

0.5 [0.16,1.60]

0.5 [0.16,1.56]

 Ever diagnosed with diabetes

  No

 

Ref

Ref

Ref

  Yes

 

2.1 [0.93,4.60]

2.0 [0.88,4.69]

2.2 [0.94,5.28]

 Ever diagnosed with cancer

  No

 

Ref

Ref

Ref

  Yes

 

5.5 [0.90,33.20]

6.2 [0.98,39.35]

5.7 [0.75,42.79]

 Ever diagnosed with stroke

  No

 

Ref

Ref

Ref

  Yes

 

1.9 [0.65,5.65]

2.6 [0.84,8.22]

3.3* [1.04,10.65]

Lifestyle behaviour

 Fruit consumption

   < 2

  

Ref

Ref

  2

  

1.12 [0.65,1.94]

1.0 [0.54,1.74]

  3 + 

  

0.9 [0.49,1.50]

0.9 [0.51,1.72]

 Vegetable consumption

   < 2

  

Ref

Ref

  2

  

0.9 [0.53,1.46]

0.7 [0.43,1.25]

  3 + 

  

0.6 [0.33,1.12]

0.6 [0.33,1.20]

 Tobacco consumption

  No

  

Ref

Ref

  Yes

  

1.1 [0.49,2.31]

1.0 [0.44,2.29]

 Alcohol consumption

  No

  

Ref

Ref

  Yes

  

0.9 [0.51,1.76]

1.8 [0.59,2.37]

Health seeking

 Times visited the clinic in last 12 months

  No visit

   

Ref

  Once/twice

   

1.9 [0.46,7.76]

  3 – 6 times

   

5.3* [1.35,21.01]

  More than six times

   

5.5* [1.41,21.41]

Constant

0.23

0.19

0.22

0.06

Model fitness

 Prob > chi2

 < 0.001

 < 0.00

 < 0.00

 < 0.00

 AIC

612.29

606.23

594.15

546.44

 Pseudo R2

0.11

0.12

0.13

0.15

 N

518

518

518

518

  1. *p < 0.05, **p < 0.01, ***p < 0.001; ref reference category, OR odds ratio, CI confidence interval