Study on risk factors and interaction effects of delirium in patients with severe pneumonia in intensive care unit

doi:10.5498/wjp.117992

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World Journal of Psychiatry

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2220-3206

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Psychiatry. Jul 19, 2026; 16(7): 117992
Published online Jul 19, 2026. doi: 10.5498/wjp.117992

Table 4 Interaction effect analysis of risk factors for delirium in intensive care unit patients with severe pneumonia

Model	Average test accuracy of training set	Test set average test accuracy	Cross-validation consistency rate	P value
APACHE II	0.6316	0.5917	8/10	< 0.001
Diabetes × APACHE II	0.6530	0.5980	5/10	< 0.001
Diabetes × arterial oxygen saturation ×APACHE II	0.6838	0.6638	10/10	< 0.001

APACHE II: Acute Physiology and Chronic Health Evaluation II.

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Citation: Zhen J, Li YL, Xu YF, Guo LJ, Chen W. Study on risk factors and interaction effects of delirium in patients with severe pneumonia in intensive care unit. World J Psychiatry 2026; 16(7): 117992
URL: https://www.wjgnet.com/2220-3206/full/v16/i7/117992.htm
DOI: https://dx.doi.org/10.5498/wjp.117992

Zhen J, Li YL, Xu YF, Guo LJ, Chen W. Study on risk factors and interaction effects of delirium in patients with severe pneumonia in intensive care unit. World J Psychiatry 2026; 16(7): 117992 [DOI: 10.5498/wjp.117992]

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