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

Table 5 Multivariate logistic regression analysis of risk factors and interaction effects of delirium in patients with severe pneumonia in the intensive care unit

Index	β	SE	Wald	P value	OR	95%CI
Diabetes	-0.197	1.192	0.027	0.869	0.821	0.079-8.498
Mechanical ventilation time	0.073	0.314	0.055	0.815	1.076	0.582-1.991
Lactic acid	0.041	0.311	0.018	0.895	1.042	0.567-1.916
Calcium	-0.174	0.311	0.315	0.575	0.840	0.457-1.545
Arterial oxygen saturation	0.954	0.805	1.406	0.236	2.596	0.536-12.568
APACHE II	2.529	1.629	2.410	0.121	12.537	0.515-305.247
Diabetes × APACHE II	0.601	0.958	0.393	0.531	1.823	0.279-11.921
Diabetes × arterial oxygen saturation × APACHE II	-0.821	0.305	7.219	0.007	0.440	0.242-0.801
Constant	-3.811	2.822	1.823	0.177	0.022

APACHE II: Acute Physiology and Chronic Health Evaluation II; OR: Odds ratio; CI: Confidence interval.

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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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