Table 2.

Parameter Estimates From a Linear Mixed Model Including Subject-Specific Knots at D_i and R_i Fitted to the Square Root of CD4 Cell Count, Including Individuals Who Disengaged From and Subsequently Reengaged in Care, IeDEA Collaboration, East Africa, 2001–2011^a

Parameter	Estimate	95% CI	P Value
Intercept	12.123	12.015, 12.230	<0.001
b /year	−1.580	−1.708, −1.451	<0.001
	7.823	7.636, 8.010	<0.001
c /year	−3.117	−3.348, −2.886	<0.001
	−0.236	−0.435, −0.037	0.020
d /year	−0.415	−0.583, −0.246	<0.001
	−0.215	−0.358, −0.071	0.003
	−0.724	−1.059, −0.389	<0.001
	2.511	2.266, 2.756	<0.001
	−0.007	−0.204, 0.191	0.948
	2.051	1.575, 2.527	<0.001

Abbreviations: AIDS, acquired immunodeficiency syndrome; ART, antiretroviral therapy; CI, confidence interval; IeDEA, East Africa International Epidemiology Databases to Evaluate AIDS.

^a , time (years) from ART initiation to disengagement from care; , time (years) from ART initiation to ART reinitiation.

^b where t denotes time from ART initiation in years.

^c

^d