Table 1 Demographic characteristics of individuals in cohorts from the U.S., Botswana and Uganda

From: HIV-associated gut microbial alterations are dependent on host and geographic context

Demographic

Boston, US (n = 233)

Gaborone, Botswana (n = 194)

Mbarara, Uganda (n = 170)

p value

Geographical demographics

    

 Population density per km2

 Gross National Income in $USD

 HIV prevalence in adults aged 15–45 per 100,000 population (IQR)

5538

$52,620

0.4 (0.3–0.5)

1400

$14,630

23.2 (20.9–24.8)

314

$1320

6.8 (6.5–7.1)

Sex, female/male (male MSM/male non-MSM [Boston])

53/180 (118/62)

96/98

85/85

<0.01

Race (Black or African-American/White/American Indian or Alaskan Native/Asian/Multiple/Unknown)

49/161/2/7/12/2

194/0/0/0/0/0

170/0/0/0/0/0

<0.01

Ethnicity (non-Hispanic or Latino/Hispanic or Latino)

209/24

194/0

170/0

<0.01

Age in years (IQR)

51 (37, 55)

38 (34, 41.75)

49 (46, 52)

<0.01

HIV-1 infection status (female/male MSM/male non-MSM/male [MSM unknown])

    

 Negative

 On ART

 ART-naïve

117 (50.2%) (37/32/48/0)

61 (26.2%) (9/42/10/0)

55 (23.6%) (7/44/4/0)

80 (41.3%) (36/0/0/44)

73 (37.6%) (38/0/0/35)

41 (21.1%) (22/0/0/19)

80 (47%) (39/0/0/41)

90 (53%) (46/0/0/44)

<0.01

Time on ART (years, IQR)

8.87 (4.20, 14.00)

8.98 (6.92, 10.81)

6.99 (6.38, 7.64)

<0.01

ART regimen (NNRTI/PI/ISTI/2_agent)

19/14/25/3

52/18/0/3

81/9/0/0

<0.01

Weight in kg (IQR) (n by negative/ART/ART-naïve)

82 (72, 92) n = 208 (43/108/57)

65 (57, 77)

59 (53, 66)

<0.01

Height in cm (IQR) (n by negative/ART/ART-naïve)

175 (170, 180) n = 206 (42/107/57)

166 (161, 173)

162 (157, 169)

<0.01

Body mass index (BMI) in kg/cm2 (IQR) (n by negative/ART/ART-naïve)

26.6 (23.5, 30) n = 205 (42/106/57)

23.1 (20.3, 27.7)

21.8 (19.7, 24.8)

<0.01

Taking TMP-SMX (yes/no)

2 (both ART-naive, MSM)/231

0/194

81 (all ART)/89 (including 9 on ART)

<0.01

History or diagnosis of comorbidity (n, %) (n by negative/ART/ART-naïve, total n = 200 for Boston)

    

 Hyperlipidemia

 Hypertension

 Cardiovascular disease

 Diabetes

32 (16) (8/18/6)

37 (18.5) (8/19/10)

8 (4) (4/3/1)

12 (6) (6/4/2)

56 (28.9) (22/28/6)

21 (10.8) (9/11/1)

10 (5.2) (3/3/4)

8 (4.1) (4/1/3)

25 (14.7) (14/11/0)

37 (21.8) (22/15/0)

49 (28.8) (25/24/0)

12 (7.1) (7/5/0)

<0.01

0.015

<0.01

0.4691

Current CD4 T-cell counts in cells/mL (IQR)

    

 On ART

  (Negative/ART/ART-naïve)

 ART-naïve

  (Negative/ART/ART-naïve)

722 (507.2, 918)

n = 60 (9/41/10)

548 (440.8, 775)

n = 54 (7/43/4)

493 (389, 694)

361 (158, 531)

430 (336, 552.8)

<0.01

<0.01

Nadir CD4 T-cell counts in cells/mL (IQR)

    

 On ART

  (Negative/ART/ART-naïve)

 ART-naïve

  (Negative/ART/ART-naïve)

361.5 (276.5, 583)

n = 52 (7/39/6)

402 (347.5, 557)

n = 50 (6/41/3)

127.5 (73.3, 180)

123 (85.3, 173.3)

<0.01

  1. For numeric variables, median and IQR (interquartile range) values are shown. P values for continuous and discrete variables are calculated with ANOVA and χ2 test, respectively. For the geographical demographic information, population density is calculated by city and gross national income and HIV prevalence in adults by country.
  2. MSM men who have sex with men, NNRTI ART regimen containing 2 Nucleoside Reverse Transcriptase Inhibitors (NRTI) and a Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTI), PI ART regimen containing 2 NRTI and a Protease Inhibitor (PI), ISTI ART regimen containing 2 NRTI and an Integrase Strand Transfer Inhibitor, 2_agent ART regimen containing only 2 agents (either 2 NRTI, an NRTI and an NNRTI, or an NRTI and a PI), TMP-SMX trimethoprim-sulfamethoxazole.