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Table 1 Demographic and socioeconomic characteristics among cases and controls.

From: Factors associated with paradoxical immune response to antiretroviral therapy in HIV infected patients: a case control study

Demographic and socioeconomic characteristics Cases (n = 39a) Controls (n = 160a) Bivariate analysis
    p-valuec
AGE AT AIDS DIAGNOSISb (years) 42.4 ± 14.3 Median: 38 (IQR: 32.7-49.5) 40,2 ± 10.9 Median: 38.50 (IQR: 31.5-48.7) 0.637
AGE AT HAART INITIATIONb 42,8 ± 10 Median: 38 (IQR: 32.7-49.5) 40,54 ± 10.8 Median: 39 (IQR: 31.5-48.7) 0.630
RACE/SKIN COLOR - n (%)    0.440
   White 14 (35.9) 75 (46.9)  
   Mixed 17 (43.6) 55 (34.4)  
   Black 6 (15.4) 22 (13.8)  
MARITAL STATUS - n (%)    0.989
   Single 13 (33.3) 55 (34.4)  
   Married 14 (35.9) 66 (41.2)  
   Separate/divorced 3 (7.7) 17 (10.6)  
   Widow 2 (5.1) 12 (7.5)  
OCCUPATION - n (%)    0,258
Unemployed 2 (5.1) 6 (3.7)  
Not specialized 8 (20.2) 52 (32.5)  
   Autonomous 7 (18) 12 (7.5)  
   Specialized 2 (5.1) 7 (4.3)  
   Others 19 (25.6) 80 (50)  
EDUCATION - n (%)    0,656
   Four years at most 6 (15.4) 33 (20.6)  
   Until eight years 18 (46.1) 56 (35)  
   High school 11 (28.2) 43 (30.6)  
   Universitary education 2 (5.1) 14 (8.7)  
  1. n, number; HAART, highly active antiretroviral therapy.
  2. a different values due to missing data.
  3. b Continuous data presented by mean ± standard deviation (SD) and by median with interquartile range (IQR).
  4. c Chi-square test or Fisher's exact test were used for comparison of categorical variables between the two groups, as more appropriate. For continuous variables, "Student's" T test was used for comparison of normal distributions between the two groups. For non-normal distributions, it was used the Mann-Whitney test.