Background. Birth weight is an important measure for determining the health and development of newborns. Epidemiological findings indicate that infants with low birth weight (LBW)
HIV testing remains central to epidemic control, but awareness of HIV status in Zimbabwe remains below UNAIDS targets. We evaluated a targeted HIV testing model using a risk-screen
A retrospective descriptive analysis of routine surveillance and immunization data from a single rural district with no comparator, causal hypothesis, or analytical test; documents local epidemiological patterns but does not establish evidence of efficacy or intervention effectiveness.
A single-centre cross-sectional screening study reporting prevalence of undiagnosed conditions via secondary analysis; descriptive in nature with no intervention or comparator arm, limited to hypothesis generation about hidden morbidity in one university population.
This is a methodological critique and position paper proposing caution about interpreting all-cancers-combined associations; it raises questions about epidemiological practice rather than presenting new empirical evidence.
A systematic review of nine heterogeneous studies from four West African countries showing insufficient evidence to characterise regional epidemiology, with no quantitative synthesis possible due to methodological diversity.
Single-center cross-sectional study in Ghana describing maternal health literacy prevalence and associations; no comparator group and observational design limit causal inference and generalizability.
Retrospective descriptive study of a small outbreak (14 cases) with no comparator arm; temporal associations observed but causality cannot be inferred from this design.