Table 1 Background of matching subjects(n=243)
From: Levels of omega-3 fatty acid in serum phospholipids and depression in patients with lung cancer
Nondepression | Minor depression | Major depression | χ 2 or F | P -value | |
|---|---|---|---|---|---|
HADS-D (score) | 0–4 | 5–10 | 11–21 | ||
Number | 81 | 81 | 81 | ||
Gender (male) | 57 (70%) | 57 (70%) | 57 (70%) | 0.00 | 1.00 |
Age (years old) | 65.0±8.3 | 65.4±8.4 | 65.1±8.3 | 0.05* | 0.96 |
Performance status (0/1)a | 23/58 | 23/58 | 23/58 | 0.00 | 1.00 |
Clinical stage (IIIb–IV)b | 47 (58%) | 47 (58%) | 47 (58%) | 0.00 | 1.00 |
Educational level (>9 years) | 56 (69%) | 50 (62%) | 52 (64%) | 1.24 | 0.54 |
Alcohol (>45 g day−1) | 12 (15%) | 12 (15%) | 14 (17%) | 0.51 | 0.77 |
Smoking | |||||
Current smoker | 30 (37%) | 27 (33%) | 33 (41%) | 1.32 | 0.86 |
Ex-smoker | 31 (38%) | 34 (42%) | 32 (40%) | ||
Nonsmoker | 20 (25%) | 20 (25%) | 16 (20%) | ||
Body mass index (kg m−2) | 22.1±3.2 | 22.1±2.9 | 22.0±3.5 | 0.04* | 0.96 |