Table 5.

Estimates of mean sojourn time and the total length of stay for the time-homogenous multistate Markov model among antiretroviral therapy (ART) patients in Zimbabwe national ART from 2004 to 2017.

States	Mean sojourn time		The total length of stay (years)
	Estimate (95% CI) (years)	Standard error
State 1 (>500 cell/μl)	3.77 (3.66–3.88)	0.054	11.33
State 2 (351–500 cells/μl)	2.53 (2.46–2.60)	0.036	5.51
State 3 (200–350 cells/μl)	3.71 (3.63–3.80)	0.042	7.17
State 4 (< 200 cells/μl)	4.74 (4.64–4.82)	0.047	6.86