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Table 3 Univariate logistic regression analysis to examine the risk factors of subsyndromal delirium

From: Incidence and risk factors of subsyndromal delirium after curative resection of gastric cancer

Variable

OR (95% CI)

p value

Age, ≥70 years

4.24 (1.58–11.39)

0.004*

Male

1.60 (0.55–4.70)

0.392

Education level, ≤9 years

4.29 (1.57–11.71)

0.005*

Body mass index

 Body mass index < 18.5

0.58 (0.07–4.80)

0.615

 Body mass index ≥18.5, ≤25.0

1.00 (reference)

–

 Body mass index > 25.0

1.26 (0.38–4.17)

0.703

CCI (except age), ≥4

1.00 (0.21–4.78)

0.996

Preop midazolam use for anaesthesia-assisted gastroscopy

0.76 (0.24–2.43)

0.639

Pathological stage, ≥II

1.42 (0.50–4.03)

0.505

Surgery procedure type, laparoscopic

0.74 (0.25–2.23)

0.596

Resection type, total

0.89 (0.28–2.86)

0.844

Anaesthesia time, higher quartile

1.15 (0.38–3.41)

0.808

Main anaesthetic agent, propofol (TIVA)

0.68 (0.19–2.48)

0.556

Intraoperative analgesic agent, fentanyl

0.61 (0.07–4.95)

0.640

MMSE, ≤23a

2.05 (0.52–8.04)

0.305

HADS anxiety, ≥8a

0.77 (0.20–2.88)

0.692

HADS depression, ≥8a

0.68 (0.18–2.53)

0.563

PSQI, >8a

2.06 (0.50–8.52)

0.317

  1. Abbreviations: OR odds ratio, CI confidence interval, CCI Charlson Comorbidity Index, TIVA total intravenous anaesthesia, MMSE Mini-Mental State Examination, HADS Hospital Anxiety and Depression Scale, PSQI Pittsburgh Sleep Quality Index
  2. aVariables were assessed preoperatively
  3. *p < 0.01