Table 3 Multivariable negative binomial regression modela for mean CD4-count enrolment into ClinSurv, 1999–2013 (n = 9080); significant results in bold
Mean CD4-count (cells/μl) at enrolment | Ratio of mean CD4-count (IRR) | 95%-CI | p-value |
|---|---|---|---|
Region of origin of migrant group | |||
Non-migrants | Ref. | -- | -- |
WE | 0.94 | 0.75–1.16 | 0.551 |
CE | 0.97 | 0.83–1.14 | 0.733 |
EE | 0.84 | 0.68–1.03 | 0.092 |
SSA | 0.72 | 0.64–0.82 | <0.001 |
SEA | 0.62 | 0.49–0.78 | <0.001 |
Age Group (in years) | |||
15–24 | 1.37 | 1.28–1.46 | <0.001 |
25–34 | 1.12 | 1.08–1.17 | <0.001 |
35–44 | Ref. | -- | -- |
45–54 | 0.88 | 0.83–0.92 | <0.001 |
55+ | 0.78 | 0.73–0.84 | <0.001 |
Sex | |||
Male | Ref. | -- | |
Female | 1.07 | 1.02–1.13 | 0.007 |
Time trend (per year) by region of origin, 1999–2013 | |||
Non-migrants | 1.01 | 1,01–1.02 | <0.001 |
WE | 1.01 | 0.98–1.03 | 0.509 |
CE | 1.03 | 1.01–1.05 | 0.008 |
EE | 0.97 | 0.94–1.00 | 0.065 |
SSA | 1.01 | 1.00–1.02 | 0.139 |
SEA | 1.01 | 0.99–1.04 | 0.367 |
Mean CD4-count (cells/ul) at enrolment | Incidence rate | 95%-CI | p -value |
(reference group) 2013 | 383 | 365–403 | <0.001 |