The Role of Health Information Management in Improving Patient Outcomes in Chronic Disease Management

Chronic non-communicable diseases (NCDs) such as hypertension, diabetes, asthma, and cardiovascular illnesses represent a growing health burden in Nigeria and globally. This study investigates how Health Information Management (HIM) systems influence chronic disease care at Braithwaite Memorial Specialist Hospital, Port Harcourt. Guided by Donabedian’s structure–process–outcome model, a descriptive cross-sectional mixed-methods design was employed. Data were collected from 200 healthcare workers, administrators, and patients using structured questionnaires, interviews, and focus groups. Quantitative results revealed that most respondents perceived HIM positively: improved record-keeping and data access enhanced diagnosis, follow-up, and continuity of care. Over 80% agreed that electronic recordkeeping reduces redundant tests and delays. Regression analysis showed that frequent data updates, cross-departmental access, and electronic health record (EHR) usage significantly predicted improved patient outcomes (R² = 0.62). Qualitative findings emphasized persistent barriers, including inadequate IT infrastructure, limited staff training, and continued reliance on paper records. Overall, the persistence of a hybrid paper–electronic system constrains full benefits. The findings highlight that strengthening HIM infrastructure, digitizing records, and expanding staff training can significantly improve chronic care delivery. These results reinforce existing evidence that EHR adoption enhances healthcare quality and efficiency (Alobo et al., 2020; Barth et al., 2024).