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. 2022 May 28;12:8975. doi: 10.1038/s41598-022-12970-3

Table 2.

Alpha diversity by the indices: Observed, Shannon and Inverse Simpson the between various cohorts.

HIV cohort compared to the Pneumonia cohort
HIV (n = 20) Pneumonia (n = 45) p value*
Observed
Median (IQR) 279.5 (213.0–342.5) 130.0 (74.0–240.0)  < 0.001**
Min / Max 40.0/626.0 23.0/400.0
Shannon
Median (IQR) 4.9 (4.4–5.0) 3.8 (3.4–4.3)  < 0.001**
Min/max 3.2/5.4 1.6/5.2
Inverse Simpson
Median (IQR) 74.5 (47.4–94.6) 18.4 (14.6–33.8)  < 0.001**
Min/max 14.9/146.3 4.0 / 116.0
HIV cohort compared to the TB cohort
HIV (n = 20) TB (n = 28) p value*
Observed
Median (IQR) 279.5 (213.0–342.5) 100.0 (65.0–147.0)  < 0.001**
Min/max 40.0/626.0 24.0/299.0
Shannon
Median (IQR) 4.9 (4.4–5.0) 3.4 (3.0–3.9)  < 0.001**
Min/max 3.2/5.4 2.3/4.9
Inverse Simpson
Median (IQR) 74.5 (47.4–94.6) 18.4 (14.6–33.8)  < 0.001**
Min/max 14.9/146.3 6.0 / 65.1
Pneumonia cohort compared to the TB cohort
Pneumonia (n = 45) TB (n = 28) p value*
Observed
Median (IQR) 130.0 (74.0–240.0) 100.0 (65.0–147.0) 0.054
Min/max 23.0/400 24.0/299.0
Shannon
Median (IQR) 3.8 (3.4–4.3) 3.4 (3.0–3.9) 0.054
Min/max 1.6/5.2 2.3/4.9
Inverse Simpson
Median (IQR) 29.0 (16.0–40.1)–94.6) 18.4 (14.6–33.8) 0.101
Min/max 4.0/116.0 6.0/65.1

*Nonparametric Wilcoxon rank sum test.

**Statistically significant.