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Conference Paper: Trends of stone composition in Hong Kong over a decade
Title | Trends of stone composition in Hong Kong over a decade |
---|---|
Authors | |
Issue Date | 2017 |
Publisher | Blackwell Publishing Asia. The Journal's web site is located at http://www.blackwellpublishing.com/journals/IJU |
Citation | 15th Urological Association of Asia (UAA) Congress: Piecing Together Asian Perspectives in Urology, Hong Kong, 4–6 August 2017. In International Journal of Urology, 2017, v. 24 n. Suppl. 1, p. 118-119 How to Cite? |
Abstract | Introduction and objectives: Diet high in animal fats and obesity in recent years have been shown to increase the proportion of female stone formers as well as uric acid stones in Western countries. This study aims to identify the changing trends of stone composition in Hong Kong over the past decade. Identifying such trends could help in formulating strategies for tackling the problem of renal stones in Hong Kong.
Materials and methods: Patients with upper urinary tract stones and subsequent stone analysis results were identified through the clinical management system from 2004 to 2005 (referred to as 2000s) and
from 2015 to 2016 (referred to 2010s). Patient records were retrieved and demographics, nature of stones on analysis, and location of stones were identified. Categorical data were analyzed with Chi-square test whereas continuous variables were analyzed with t-test.
Results: 70 patients were identified in 2000s, whereas 66 patients were identified in 2010s. Mean age of patients in 2000s were 56.3 years old compared with 51.4 years old in 2010s (P = 0.07). 70% were males in 2000s vs 59.1% in 2010s; a rise in female stone formers was noted but it was not statistically significant (P = 0.211). In general, there were more patients with carbonate (P = 0.001) & oxalate stones (P = 0.001) in 2010s and less calcium phosphate (P = 0.001) and struvite stones (P = 0.045). These findings were reflected in males but less so in females on subgroup analysis. Interestingly, there were
no increase in uric acid stones in our study.
Conclusion: There was a change from calcium phosphate and struvite stones to carbonate and calcium oxalate stones in the past decade in Hong Kong. There were no increase in uric acid stones as seen in
other studies performed in Western countries. |
Description | poster presentation - abstract no. PP192 |
Persistent Identifier | http://hdl.handle.net/10722/254840 |
ISSN | 2023 Impact Factor: 1.8 2023 SCImago Journal Rankings: 0.663 |
DC Field | Value | Language |
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dc.contributor.author | Ho, SHB | - |
dc.contributor.author | Lai, TCT | - |
dc.contributor.author | Tsang, CF | - |
dc.contributor.author | Ng, ATL | - |
dc.contributor.author | Wong, CKW | - |
dc.contributor.author | Ma, WK | - |
dc.contributor.author | Tsu, HLJ | - |
dc.contributor.author | Yiu, MK | - |
dc.date.accessioned | 2018-06-21T01:07:24Z | - |
dc.date.available | 2018-06-21T01:07:24Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | 15th Urological Association of Asia (UAA) Congress: Piecing Together Asian Perspectives in Urology, Hong Kong, 4–6 August 2017. In International Journal of Urology, 2017, v. 24 n. Suppl. 1, p. 118-119 | - |
dc.identifier.issn | 0919-8172 | - |
dc.identifier.uri | http://hdl.handle.net/10722/254840 | - |
dc.description | poster presentation - abstract no. PP192 | - |
dc.description.abstract | Introduction and objectives: Diet high in animal fats and obesity in recent years have been shown to increase the proportion of female stone formers as well as uric acid stones in Western countries. This study aims to identify the changing trends of stone composition in Hong Kong over the past decade. Identifying such trends could help in formulating strategies for tackling the problem of renal stones in Hong Kong. Materials and methods: Patients with upper urinary tract stones and subsequent stone analysis results were identified through the clinical management system from 2004 to 2005 (referred to as 2000s) and from 2015 to 2016 (referred to 2010s). Patient records were retrieved and demographics, nature of stones on analysis, and location of stones were identified. Categorical data were analyzed with Chi-square test whereas continuous variables were analyzed with t-test. Results: 70 patients were identified in 2000s, whereas 66 patients were identified in 2010s. Mean age of patients in 2000s were 56.3 years old compared with 51.4 years old in 2010s (P = 0.07). 70% were males in 2000s vs 59.1% in 2010s; a rise in female stone formers was noted but it was not statistically significant (P = 0.211). In general, there were more patients with carbonate (P = 0.001) & oxalate stones (P = 0.001) in 2010s and less calcium phosphate (P = 0.001) and struvite stones (P = 0.045). These findings were reflected in males but less so in females on subgroup analysis. Interestingly, there were no increase in uric acid stones in our study. Conclusion: There was a change from calcium phosphate and struvite stones to carbonate and calcium oxalate stones in the past decade in Hong Kong. There were no increase in uric acid stones as seen in other studies performed in Western countries. | - |
dc.language | eng | - |
dc.publisher | Blackwell Publishing Asia. The Journal's web site is located at http://www.blackwellpublishing.com/journals/IJU | - |
dc.relation.ispartof | International Journal of Urology | - |
dc.relation.ispartof | 15th Urological Association of Asia (UAA) Congress | - |
dc.rights | The definitive version is available at www.blackwell-synergy.com | - |
dc.title | Trends of stone composition in Hong Kong over a decade | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Ho, SHB: hobrian@hku.hk | - |
dc.identifier.email | Ng, ATL: ada5022@hku.hk | - |
dc.identifier.email | Wong, CKW: kwwongab@hku.hk | - |
dc.identifier.email | Ma, WK: mwk054@hku.hk | - |
dc.identifier.email | Tsu, HLJ: jamestsu@hku.hk | - |
dc.identifier.email | Yiu, MK: pmkyiu@hku.hk | - |
dc.identifier.hkuros | 285489 | - |
dc.identifier.volume | 24 | - |
dc.identifier.issue | Suppl. 1 | - |
dc.identifier.spage | 118 | - |
dc.identifier.epage | 119 | - |
dc.publisher.place | Australia | - |
dc.identifier.issnl | 0919-8172 | - |