Key result
POSSUM, P-POSSUM, and SRS scores accurately predict mortality after major general surgery.
Why the study?
Common surgical risk scoring systems have not been validated locally in Harare for major general surgical operations.
Do POSSUM, P-POSSUM, and SRS scores accurately predict mortality and morbidity in patients undergoing major general surgery in Harare?
Comparison
POSSUM, P-POSSUM, and SRS predicted mortality and morbidity versus observed rates
Design
Prospective observational cohort study
Authors
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Supports local use for mortality risk stratification in Harare; extends validation to this cohort but leaves broader applicability open.
Cohort (n=181)
Yes
Do POSSUM, P-POSSUM, and SRS scores accurately predict mortality and morbidity in patients undergoing major general surgery in Harare?
Effect estimate: O:E ratio 0.88 for morbidity
p-value: p=0.970
POSSUM, P-POSSUM, and SRS scores are valid and comparable tools for estimating mortality and morbidity outcomes after major general surgery in Harare.
Ngulube et al. (2019) conducted a cohort in Major general surgical operations (n=181). POSSUM, P-POSSUM and SRS scores vs. Observed outcomes was evaluated on Mortality and morbidity (O:E ratio 0.88 for morbidity, p=0.970). POSSUM, P-POSSUM, and SRS scores accurately predicted mortality after major general surgery, with observed-to-expected mortality ratios of 0.74, 1.06, and 1.0 respectively (all p>0.05).
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