Table 1.
Baseline characteristics and categorization in analysis (n = 89).
| Factors | Value | Range | Categorization |
|---|---|---|---|
| Age (years), median (IQR) | 54 (49–61.50) | 19–78 | Original |
| Gender, freq (%) | Ordinal | ||
| Male | 43 (48.3) | 1 | |
| Female | 46 (51.7) | 0 | |
| BMI, mean(SD) | 23.10 (2.93) | 16.89–31.60 | Original |
| Education, freq (%) | Ordinal | ||
| Primary school | 7 (7.9) | 1 | |
| Middle school | 22 (24.7) | 2 | |
| High school | 27 (30.3) | 3 | |
| University | 33 (37.1) | 4 | |
| Present pain, freq (%) | Original | ||
| Yes | 10 (11.2) | 1 | |
| No | 79 (88.8) | 0 | |
| FOP, median (IQR) | 18 (14–22) | 9–35 | |
| Psychological pain, median (IQR) | 0 (0–1) | 0–8 | Original |
| PHQ-9, median (IQR) | 1 (0–2) | 0–17 | Original |
| BPI, median (IQR) | Original | ||
| Least | 1 (0–3) | 0–10 | |
| Worst | 4 (3–7) | 0–10 | |
| Average | 3 (2–4) | 0–10 | |
| PCS, median (IQR) | 30 (19.75–38) | 9–52 | Original |
| Operation method, freq (%) | Ordinal | ||
| Mediastinal | 15 (16.9) | 1 | |
| Wedge resection of lung | 16 (18.0) | 2 | |
| Segmental resection of lung | 20 (22.5) | 3 | |
| Lobectomy | 38 (42.7) | 4 | |
| Analgesic drugs, freq (%) | Ordinal | ||
| Decreased | 14 (15.7) | 1 | |
| Unchanged | 53 (59.6) | 2 | |
| Increased | 22 (24.7) | 3 |
IQR, interquartile range; freq, frequency; BMI, body mass index; SD, standard deviation; FOP, Fear of Pain-9 Items; PHQ-9, Patient Health Questionnaire-9; PCS, Pain Catastrophizing Scale.