A multicountry cohort study in sub-Saharan Africa by Landon Myer and colleagues reveals higher pregnancy rates in HIV-infected women on antiretroviral therapy (ART).
Background
Few data are available on the long-term immunologic response to ART in resource-limited settings, where antiretroviral therapy (ART) is being scaled up using a public health approach, with a limited repertoire of drugs.
Objectives
To describe immunologic response to ART in a network of cohorts from sub-Saharan Africa, Latin America, and Asia.
Study population/methods
Treatment-naïve patients aged 15 and older from 27 treatment programs were eligible. Multi-level, linear mixed models were used to assess associations between predictor variables and CD4 count trajectories following ART initiation.
Results
Of 29,175 patients initiating ART, 8,933 patients (31%) were excluded due to insufficient follow-up time and early lost to follow-up or death. The remaining 19,967 patients contributed 39,200 person-years on ART and 71,067 CD4 measurements. The median baseline CD4 count was 114 cells/μL, with 35%<100 cells μL and substantial inter-site variation (range: 61-181 cells/μL). Females had higher median baseline CD4 counts than males (121 vs. 104 cells/μL). The median CD4 count increased from 114 cells/μL at ART initiation to 230 (IQR:144-338) at 6 months, 263 (IQR:175-376) at 1 year, 336 (IQR:224-472) at 2 years, 372 (IQR:242-537) at 3 years, 377 (IQR:221-561) at 4 years, and 395 (IQR:240-592) at 5 years. In multivariable models, baseline CD4 count was the most important determinant of subsequent CD4 count trajectories.
Conclusions
These data demonstrate robust and sustained CD4 response to ART among patients remaining on therapy. Public health and programmatic interventions leading to earlier HIV diagnosis and initiation of ART could substantially improve patient outcomes in resource-limited settings.
PurposeExacerbation-associated health-related quality of life (HRQoL) in patients with severe and very severe chronic obstructive pulmonary disease (COPD) is ill-defined. This study describes patterns, HRQoL, and the work productivity impact of COPD-related moderate and SEV exacerbations in patients with SEV/VSEV COPD, focusing on the chronic bronchitis subtype.Patients and methodsA US sample of SEV and VSEV COPD patients with recent moderate or SEV exacerbation was recruited. Along with the demographic and clinical data collected from medical records, patients reported on exacerbation frequency, health-related quality of life (HRQoL) (using the St George’s Respiratory Questionnaire for COPD [SGRQ-C] and the European Quality of Life-5 Dimensions [EQ-5D]™ index), and work productivity and activity impairment (using the Work Productivity and Activity Impairment Questionnaire – Specific Health Problem [WPAI-SHP]). The HRQoL-related impacts of exacerbation frequency, time since exacerbation, and last exacerbation severity were evaluated via linear regressions.ResultsA total of 314 patients (190 SEV/124 VSEV, mean age =68.0 years, 51% male, 28% current smokers) were included. In the previous 12 months, patients reported an average of 1.8 moderate exacerbations and 0.9 SEV exacerbations. Overall, 16% of patients were employed and reported a high percentage of overall work impairment (42.4% ± 31.1%). Activity impairment was positively associated with recent exacerbation severity (SEV 64.6% ± 26.8% versus moderate 55.6% ± 28.2%) (P=0.006). The HRQoL was significantly worse for SEV versus VSEV COPD (EQ-5D: 0.62 ± 0.23 versus 0.70 ± 0.17, respectively, and SGRQ-C: 70.1 ± 21.3 versus 61.1 ± 19.0, respectively) (P<0.001). Worse current HRQoL was reported by patients with a SEV versus moderate recent exacerbation (EQ-5D: 0.63 ± 0.21 versus 0.70 ± 0.20, respectively) (P=0.003); SGRQ-C: 70.3 ± 19.9 versus 61.7 ± 20.1, respectively (P<0.001). One additional exacerbation in the previous 12 months was associated with a 2.4-point SGRQ-C increase and a 0.02-point EQ-5D index decrease.ConclusionThe severity and frequency of COPD-related moderate/SEV exacerbations in SEV and VSEV COPD patients were positively associated with poor HRQoL and work productivity and activity impairment.
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