Table 2. Comorbidities and disability degree recorded as barthel index for functional activities of daily living for subjects classified according to CD4/CD8 ratio.

	CD4/CD8<1.4 N = 22 (Group a)	1.4<CD4/CD8<2 N = 19* (Group b)	CD4/CD8>2 N = 24 (Group c)	p (K-W)	p (M-W) (a vs. b)	p (M-W) (a vs. c)	p (M-W) (b vs. c)
Comorbidities (number)	4 [2 - 5]	4 [2 - 5]	2 [1 -4]	0.555	0.862	0.073	0.083
Barthel index Score	70 [34 - 95]	83 [73 - 100]	83 [18 - 99]	0.183	0.051	0.464	0.343
< 20	3 (13.6)	1 (5.5)	4 (16.7)
20-35	0 (0)	0 (0)	2 (8.3)
40-55	5 (22.7)	0 (0)	0 (0)
≥ 60	10 (45.5)	10 (55.5)	11 (45.8)
100	4 (18.2)	7 (38.8)	7 (29.2)

Notes: A Barthel index of 100 is assigned to a fully independent individual, whereas <20 means fully dependent. The quantitative variables, Comorbidities and Score, are expressed as the median [IQR], and categorical variables are expressed as the number of cases (%). *n=18 for Barthel index. A p value <0.05 was considered statistically significant. Abbreviations: K-W, nonparametric Kruskal-Wallis test; M-W, nonparametric Mann-Whitney U test.