Skip to content
E

Emmanuel Asare Ayim

Publications (7)

Testing the Proportional Hazards Assumption before Cox Model Application: A Three-test Sequential Protocol with Empirical Validation in a Ghanaian Prostate Cancer Cohort

Emmanuel Asare Ayim, Benjamin Odoi & Henry Otoo · Journal of Cancer and Tumor International · 2026

Background: Prostate cancer remains a leading cause of cancer mortality among men in Ghana and across sub-Saharan Africa, with many patients presenting at advanced disease stages where survival outcomes are influenced by disease progression, treatment failure, comorbidities, and...

Open access Research Article 10.9734/jcti/2026/v16i3369

A Hybrid Extended Cox-frailty and Random Forest Framework for Prostate Cancer Survival: Integrating Clinical Interpretability with Machine Learning Performance

Emmanuel Asare Ayim, Benjamin Odoi & Henry Otoo · Journal of Cancer and Tumor International · 2026

Prostate cancer risk stratification in low-resource clinical settings requires survival-prediction tools that address violations of the proportional hazards assumption, unobserved patient heterogeneity, and nonlinear covariate interactions that classical regression frameworks can...

Open access Research Article 10.9734/jcti/2026/v16i3367

Time Delay in Engagement Schedules in a Public University in Ghana

Emmanuel Asare Ayim, John Awuah Addor, Frank B. K. Twenefour & Emmanuel M. Baah · Asian Journal of Probability and Statistics · 2022

This paper aims to examine the incidence of time delays in engagement schedules on campus. The study made use of past records of time delays in starting committee meetings of five colleges at a public university in Ghana. The study relied on secondary data extracted from minute a...

Open access Research Article 10.9734/ajpas/2022/v16i430408

Quantifying Inequality, Volatility, and Stability in Early Postnatal Care Coverage by Multilevel Beta Regression

Francis Ayiah-Mensah, Cynthia Ama Mensah, Francis Eyiah-Bediako, Emmanuel Asare Ayim & Anthony Joe Turkson · International Journal of Research and Reports in Gynaecology · 2026

The early postnatal care in the first 48 hours of childbirth is crucial in preventing maternal morbidity and death. However, worldwide evidence remains dominated by mean-based and binary analyses that do not account for instability in service coverage. This research aims to measu...

Open access Research Article 10.9734/ijrrgy/2026/v9i1156

Separating the Temporal Dynamics and Wealth Inequalities in Early Childbearing: Multilevel Statistical Analysis

Francis Ayiah-Mensah, Cynthia Ama Mensah, Francis Eyiah-Bediako, Emmanuel Asare Ayim & Anthony Joe Turkson · Advances in Research · 2026

Early childbearing remains a persistent global public health challenge, yet existing evidence is largely derived from cross-sectional or pooled analyses that ignore hierarchical data structures and within-country dependence. The study aims to quantify the temporal dynamics and so...

Open access Research Article 10.9734/air/2026/v27i11575

Modelling Early Childbearing as a Bounded Outcome: Adolescent Fertility in Countries and Socioeconomic Strata

Francis Ayiah-Mensah, Francis Eyiah-Bediako, Harry Darko Bonsu, Emmanuel Asare Ayim & Luyton Asare · Journal of Complementary and Alternative Medical Research · 2025

Childbearing at a young age remains a pressing concern for population health and broader development. Unfortunately, there has been extensive literature based on statistical models that have not properly accounted for the bounded variable and hierarchical structure of the data co...

Open access Research Article 10.9734/jocamr/2025/v26i12731

Situational Analysis of the Willingness to Accept Interns, Benefits and Challenges of Academic Internship Programmes to Host Organisations: Empirical Evidence from Ghana

Eric Kwadwo Amissah, Frank B. K. Twenefour, Kwabena Nduro & Emmanuel Asare Ayim · Asian Research Journal of Arts & Social Sciences · 2023

Most technical universities in Ghana have recently begun paying much-needed attention to industrial attachment programs or exercises. This follows from their primary goal of educating students to develop the practical skills and pertinent competencies required for entering the wo...

Open access Research Article 10.9734/arjass/2023/v19i2422