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Table 1 Salt sensitivity and socio-demographic, clinical factors in the HIV positive and HIV negative groups

From: HIV-positive demonstrate more salt sensitivity and nocturnal non-dipping blood pressure than HIV-negative individuals

  HIV positive participants HIV Negative participants
Salt sensitive
n, 23
Salt resistant
n, 20
Salt-sensitive
n, 21
Salt-resistant
n, 21
p-value
Age, median (interquartile range) 40 (39, 42) 41 (38, 42) 39 (37, 41) 40 (37, 43) 0.38
Sex, n(%)
Male 12 (31.6) 8 (21.0) 9 (23.7) 9 (23.7) 0.56
Female 11 (23.5) 12 (25.5) 12 (25.5) 12 (25.5)  
Body mass index, kg/m2 24 (20, 27) 22 (19, 25) 25 (23, 29) 23 (21, 25) 0.07
BP status, n(%)
Hypertensive 21 (48.8) 1 (2.3) 15 (34.9) 6 (14.0) < 0.001
  Adjusted residual 4.57 −4.66 2.20 2.33  
Normotensive 2 (4.8) 19 (45.2) 6 (14.3) 15 (35.7)  
  Adjusted residual −4.57 4.66 −2.20 2.33  
Dipping status on low-salt, n (%)
Dipper, ≥10% 8 (16.7) 16 (33.3) 8 (16.7) 16 (33.3) 0.002
  Adjusted residual −2.46 2.43 −1.96 2.10  
Non-dipper, < 10% 15 (40.5) 4 (10.8) 13 (35.1) 5 (13.5)  
  Adjusted residual 2.46 −2.43 1.96 − 2.10  
Dipping status on high-salt, n (%)
Dipper, ≥10% 2 (5.6) 17 (47.2) 2 (5.6) 15 (41.7) < 0.001
  Adjusted residual −3.82 4.41 −3.51 3.11  
Non-dipper, < 10% 21 (42.9) 3 (6.1) 19 (38.8) 6 (12.2)  
  Adjusted residual 3.82 −4.41 3.51 −3.11  
  1. Row percentage used. Kruskal-Wallis test and Chi-square test used. P-value less than 0.05 are in bold