Detection of Functional Change Using Cluster Trend Analysis in Glaucoma.

Detection of Functional Change Using Cluster Trend Analysis in Glaucoma.
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DOI:
10.1167/iovs.17-21562
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发表时间:
2017-05-01
影响因子:
4.4
通讯作者:
Demirel S
Demirel S
中科院分区:
医学2区
文献类型:
--
作者:
Gardiner SK;Mansberger SL;Demirel S

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使用平均偏差(MD)的全局分析评估视野进展,但可能错过局部变化。逐点分析对局部进展更敏感,但变量更多,因此需要确认。这项研究评估了聚类趋势分析,平均位置子集的信息,是否可以提高进展检测。共对133只眼进行了7至10次测试。计算这些系列可能重新排序的变化率和P值,以生成全局分析(“MD恶化速度快于x dB/y,P < y”)、逐点和聚类分析(“n个位置[或聚类]恶化速度快于x dB/y,P < y”),特异性正好为95%。这些标准应用于505只眼睛,平均10.5年,以确定每只眼睛检测到“恶化”的速度,并使用生存模型进行比较。重复这一过程,包括随后的两个视野,以确定是否证实“恶化”。最佳总体标准在5.0年内检测到25%的眼睛恶化(95%置信区间[CI],4.7-5.3年),而最佳聚类分析标准为4.8年(95% CI,4.2-5.1),最佳逐点标准为4.1年(95% CI,4.0-4.5)。然而,对于逐点分析,只有38%的这些变化得到证实,相比之下,聚类的61%和MD的76%。对于全球,直至25%的眼睛显示随后确认的恶化的时间为6.3年(95% CI,6.0-7.2),逐点分析为6.3年(95% CI,6.0-7.0),聚类分析为6.0年(95% CI,5.3-6.6)。虽然特异性仍然是次优的,聚类趋势分析检测随后确认恶化快于全球或逐点分析。
Global analyses using mean deviation (MD) assess visual field progression, but can miss localized changes. Pointwise analyses are more sensitive to localized progression, but more variable so require confirmation. This study assessed whether cluster trend analysis, averaging information across subsets of locations, could improve progression detection. A total of 133 test–retest eyes were tested 7 to 10 times. Rates of change and P values were calculated for possible re-orderings of these series to generate global analysis (“MD worsening faster than x dB/y with P < y”), pointwise and cluster analyses (“n locations [or clusters] worsening faster than x dB/y with P < y”) with specificity exactly 95%. These criteria were applied to 505 eyes tested over a mean of 10.5 years, to find how soon each detected “deterioration,” and compared using survival models. This was repeated including two subsequent visual fields to determine whether “deterioration” was confirmed. The best global criterion detected deterioration in 25% of eyes in 5.0 years (95% confidence interval [CI], 4.7–5.3 years), compared with 4.8 years (95% CI, 4.2–5.1) for the best cluster analysis criterion, and 4.1 years (95% CI, 4.0–4.5) for the best pointwise criterion. However, for pointwise analysis, only 38% of these changes were confirmed, compared with 61% for clusters and 76% for MD. The time until 25% of eyes showed subsequently confirmed deterioration was 6.3 years (95% CI, 6.0–7.2) for global, 6.3 years (95% CI, 6.0–7.0) for pointwise, and 6.0 years (95% CI, 5.3–6.6) for cluster analyses. Although the specificity is still suboptimal, cluster trend analysis detects subsequently confirmed deterioration sooner than either global or pointwise analyses.
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发表时间: 2017-01
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DOI: 10.1097/opx.0b013e31818b9b40
发表时间: 2008-11
期刊: Optometry and vision science : official publication of the American Academy of Optometry
影响因子: --
作者:
Gardiner SK;Demirel S;Johnson CA
通讯作者: Johnson CA