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Table 1 Baseline data for patients with and without delirium

From: Postoperative delirium after pharyngolaryngectomy with esophagectomy: a role for ramelteon and suvorexant

Variable All patients Delirium (+) Delirium (−) p value
Total 65 9 56  
Age (years) 66.0 (61.5, 72.0) 69.0 (65.5, 79.0) 66.0 (61.0, 72.0) 0.128
Age category, n (%) 0.769
 <70 39 (60.0%) 5 (55.6%) 34 (60.7%)  
 ≥70 26 (40.0%) 4 (44.4%) 22 (39.3%)  
Gender, n (%)     0.433
 Male 56 (86.2%) 7 (77.8%) 49 (87.5%)  
 Female 9 (13.8%) 2 (22.2%) 7 (12.5%)  
 Body mass index (kg/m2) 19.6 (18.1, 21.6) 18.2 (16.1, 21.3) 19.9 (18.2, 21.7) 0.323
Medical history, n (%)
 Hypertension 18 (27.7%) 3 (33.3%) 15 (26.8%) 0.684
 Diabetes mellitus 10 (15.4%) 0 (0%) 10 (17.9%) 0.168
 Hyperlipidemia 2 (3.1%) 1 (11.1%) 1 (1.8%) 0.133
 Stroke 8 (12.3%) 1 (11.1%) 7 (12.5%) 0.906
 Coronary heart disease 3 (4.6%) 0 (0%) 3 (5.4%) 0.477
 Renal dysfunction 2 (3.1%) 0 (0%) 2 (3.6%) 0.565
 Malignant tumor 22 (33.8%) 2 (22.2%) 20 (35.7%) 0.427
 Psychiatric disorder 4 (6.2%) 1 (11.1%) 3 (5.4%) 0.505
 Alcoholism, n (%)a 51 (78.5%) 6 (66.7%) 45 (80.4%) 0.354
 Chronic smoking, n (%)b 58 (89.2%) 9 (100.0%) 49 (87.5%) 0.262
Performance status (Eastern Cooperative Oncology Group) 0.022
 0 37 (56.9%) 2 (22.2%) 35 (62.5%)  
 1 21 (32.3%) 4 (44.4%) 17 (30.4%)  
 2 7 (10.8%) 3 (33.3%) 4 (7.1%)  
Physical status (American Society of Anesthesiologists) 0.798
 Grade 1 10 (15.4%) 1 (11.1%) 9 (16.1%)  
 Grade 2 45 (69.2%) 6 (66.7%) 39 (69.6%)  
 Grade 3 10 (15.4%) 2 (22.2%) 8 (14.3%)  
  1. Data are shown as median (interquartile range) or number (percent)
  2. aAlcoholism was defined as drinking an estimated weekly ethanol intake of ≥200 mL
  3. bChronic smoking was defined as smoking >10 cigarettes daily for at least 2 years