Disease spectrum and outcomes among elderly patients in two tertiary hospitals in Dar es Salaam, Tanzania

Background There has been an increase in the number of individuals aged >= 60 years in Tanzania and in sub Saharan Africa in general due to improved survival. However, data is scarce on the disease burden and outcomes following admission in this population. We herein describe the pattern of diagnoses, outcomes and factors associated with the outcomes among elderly patients admitted at Muhimbili National Hospital (MNH) and Jakaya Kikwete Cardiac Institute (JKCI) medical wards. Methodology From October to December 2017, we consecutively enrolled patients aged >= 60 years (elderly) admitted to the MNH and JKCI medical wards. The ICD 10 was used to code for disease diagnosis at discharge or death. The Modified Barthel index was used to assess for functional activity on admission and at discharge. Results We enrolled 336 (30.1%) elderly participants out of 1301 medical admissions. The mean age +/- SD was 70.6 +/- 8.9 years; 169 (50%) were female and the average number of diagnoses was 2 per participant. The most common diagnoses were: hypertension 151 (44.9%), stroke 106 (31.5%), heart failure 62 (18.5%), pneumonia 60 (17.9%), diabetes mellitus 58 (17.3%) and chronic kidney disease 55 (16.4%). The median duration of hospital stay was 5 (IQR 3-10) days and in-hospital mortality was 86 (25.6%), 56 (65%) deaths were due to non-communicable diseases and 48 (55.8%) deaths occurred within 72 hours of hospitalization. A modified Barthel score <= 20 on admission was associated with an OR 15.43 (95% CI: 7.5-31.7, p<0.001) for death. Conclusion Elderly patients constituted a significant proportion of medical admissions at MNH and JKCI with high in-hospital mortality. A modified Barthel index score <= 20 during admission is associated with mortality and can be used to identify patients requiring special attention.