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 3 Logistic regression analysis of risk factors for delirium in patients with severe pneumonia in the intensive care unit

Index	β	SE	Wald	P value	OR	95%CI
Diabetes	0.002	0.716	0.000	0.997	1.002	0.246-4.076
Mechanical ventilation time	0.029	0.007	16.499	< 0.001	1.029	1.015-1.044
Lactic acid	1.654	0.281	34.757	< 0.001	5.229	3.017-9.062
Calcium	-6.865	2.406	8.140	0.004	0.001	0.000-0.117
Arterial oxygen saturation	-0.201	0.521	0.149	0.700	0.818	0.295-2.271
APACHE II	1.214	0.515	5.552	0.018	3.368	1.227-9.246
Constant	2.505	5.974	0.176	0.675	12.238

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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