1992年至2004年加拿大安大略省的白内障手术率：眼科医生减少，但手术量增加。

Cataract surgery rates in Ontario, Canada, from 1992 to 2004: more surgeries with fewer ophthalmologists.

作者信息

Rachmiel R, Trope G E, Chipman M L, Buys Y M

机构信息

Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, Ont.

出版信息

Can J Ophthalmol. 2007 Aug;42(4):539-42.

PMID:17641694

Abstract

BACKGROUND

To evaluate trends in cataract surgeries in Ontario between 1992 and 2004.

METHODS

A retrospective analysis of the number of cataract surgeries performed in Ontario from April 1992 to March 2005. The estimated prevalence of cataract and cataract surgeries per 1000 persons at risk was calculated.

RESULTS

The number of cataract surgeries in Ontario increased from 44,943 in 1992 to 109,506 in 2004 (143.6%, 12.08% annual increase). The number of cataract surgeries per 1000 patients at risk of cataract increased from 64.6 in 1992 to 115.65 in 2004 (79%, 4.97% increase per year). This rate was strongly positively correlated with time and with the increase in the Ontario population (r = 0.920 and r = 0.922, respectively; p < 0.001). The number of ophthalmologists increased by 5.3% from 1992 to 1997 and then decreased by 2.9% by 2004. This change was not correlated with the cataract surgery rates (r = 0.475; p = 0.10). However, the number of ophthalmologists per million population decreased by 13.4% between 1992 and 2004. This number had a statistically negative correlation with cataract surgery rates (r = -0.757; p < 0.01).

INTERPRETATION

There has been a significant increase in the number of cataract surgeries in Ontario despite a decrease in the number of ophthalmologists per million population.

摘要

背景

评估1992年至2004年安大略省白内障手术的趋势。

方法

对1992年4月至2005年3月安大略省进行的白内障手术数量进行回顾性分析。计算每1000名有风险人群中白内障和白内障手术的估计患病率。

结果

安大略省白内障手术数量从1992年的44943例增加到2004年的109506例（增长143.6%，年增长率12.08%）。每1000名有患白内障风险的患者中白内障手术数量从1992年的64.6例增加到2004年的115.65例（增长79%，每年增长4.97%）。该比率与时间以及安大略省人口增长呈强正相关（分别为r = 0.920和r = 0.922；p < 0.001）。眼科医生数量从1992年到1997年增加了5.3%，到2004年又减少了2.9%。这种变化与白内障手术率无关（r = 0.475；p = 0.10）。然而，每百万人口中的眼科医生数量在1992年至2004年期间减少了13.4%。这个数字与白内障手术率呈统计学负相关（r = -0.757；p < 0.01）。