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Appendix surgery

Appendix surgery

Appropriateness of choice of antimicrobial agents

Year Total number of operations Appropriate choice of antimicrobial agents
Number %
2015 1,346 992 73.7
2016 1,468 1,183 80.6
2017 1,327 1,129 85.1
2018 1,229 1,100 89.5
2019 1,113 985 88.5
2020 964 819 85.0
2021 935 826 88.3
2022 812 729 89.8
2023 868 774 89.2
2024 886 819 92.4
2025 944 897 95.0
The data pertains to all hospitals under the Hospital Authority.


Timing of administration of antimicrobial

Year Total number of operations Duration from administration to incision
Within 30 minutes 30-60 minutes More than 60 minutes Data not available*
2015 1,346 327 8 5 1,006
2016 1,468 299 13 12 1,144
2017 1,327 289 17 15 1,006
2018 1,229 286 13 17 913
2019 1,113 297 14 13 789
2020 964 709 51 48 156
2021 935 726 43 62 104
2022 812 604 35 84 89
2023 868 666 33 71 98
2024 886 711 35 68 72
2025 944 803 50 62 29
The data pertains to all hospitals under the Hospital Authority.
* Starting from 2025, 'Data not available' includes cases of 'After incision', 'At the same time with incision', and missing records. Previous years only reflect missing data.