Table 4.

Pearson coefficient correlation (r) and Bland-Altman agreement analysis for quantitative measures of lowest CD4+ T-cell count and highest viral load before cART between HIV-BCS and SISCEL databases

Sites of HIV-BCSa	CD4+ T-cell					HIV viral load (log)
	Correlation		Agreement			Correlation		Agreement
	r	p-value	Mean Diff	CI95%c	p-value#	r	p-value	Mean Diff	CI95%c	p-value#
I	0.994	< 0.001	0.16	− 1.22 to 1.55	0.815	0.997	< 0.001	0.0110	−0.040 to 0.017	0.429
II	0.974	< 0.001	0.14	−0.67 to 0.95	0.733	0.990	< 0.001	−0.0026	−0.032 to 0.027	0.859
III	0.956	< 0.001	0.71	−2.96 to 4.39	0.701	0.979	< 0.001	0.0075	−0.048 to 0.063	0.790
IV	0.921	< 0.001	0.00	b	b	0.994	< 0.001	− 0.0040	−0.039 to 0.031	0.822
V	0.997	< 0.001	0.00	b	b	0.995	< 0.001	− 0.0100	−0.031 to 0.011	0.327
VI	0.990	< 0.001	1.38	−1.7 to 4.51	0.386	0.965	< 0.001	−0.0110	− 0.040 to 0.018	0.453
VII	0.995	< 0.001	−0.03	−0.11 to 0.38	0.318	0.989	< 0.001	−0.0026	−0.036 to 0.035	0.989
VIII	0.956	< 0.001	−0.02	−2.17 to 2.12	0.981	0.950	< 0.001	−0.0050	−0.020 to 0.009	0.466
IX	0.946	< 0.001	0.85	−2.02 to 3.70	0.562	0.973	< 0.001	−0.0170	− 0.051 to 0.016	0.312
X	0.978	< 0.001	0.84	−1.85 to 3.54	0.540	0.965	< 0.001	0.0060	−0.010 to 0.030	0.634
XI	0.942	< 0.001	−0.96	−3.51 to 1.59	0.460	0.975	< 0.001	0.0030	−0.014 to 0.021	0.686
XII	0.967	< 0.001	−0.50	−1.5 to 0.58	0.361	0.990	< 0.001	0.0040	−0.027 to 0.035	0.800
XIII	0.971	< 0.001	−0.36	−2.00 to 1.33	0.673	0.966	< 0.001	0.0110	−0.017 to 0.020	0.903
Total	0.970	< 0.001	0.073	−0.07 to 0.88	0.861	0.971	< 0.001	−0.0025	−0.010 to 0.005	0.509

# Null hypothesis means (DIFF) = 0

^aI - Manaus – FMT; II - Belém UREDIP; III - Santarém - Municipal STF; IV - Recife - HC/UFPE; V - J. Guararapes - MUNICIPAL STF; VI - Salvador – HUPES; VII - Salvador - CEDAP; VIII - Rio de Janeiro – IPEC; IX Belo Horizonte - UFMG; X - São Paulo - CRT/SP; XI - São Paulo - Municipal Network; XII - SAE S.J.R.P - MUNICIPAL STF; XIII - Porto Alegre – PARTENON;

^bStatistics were not calculated because the standard deviation is zero;

^cIncluding upper and higher limits of the confidence interval CI95%