Table 2.
Comparison of QoL changes according to BMI shifting
| Variable | Group 1 (n=276) |
Group 2 (n=141) |
||||
|---|---|---|---|---|---|---|
| Preoperative | Postoperative | p-value | Preoperative | Postoperative | p-value | |
| EORTC QLQ-C30 | ||||||
| Global health status/QoLa) | 61.7 | 64.4 | 0.744 | 61.0 | 66.5 | 0.416 |
| Functional scalesa) | ||||||
| Physical functioning | 86.3 | 79.8 | 0.495 | 87.3 | 81.1 | 0.436 |
| Role functioning | 90.8 | 79.6 | 0.389 | 89.2 | 81.4 | 0.381 |
| Emotional functioning | 79.6 | 80.9 | 0.199 | 82.3 | 82.7 | 0.328 |
| Cognitive functioning | 89.2 | 82.4 | 0.631 | 88.4 | 84.2 | 0.296 |
| Social functioning | 83.8 | 82.6 | 0.415 | 83.6 | 81.6 | 0.645 |
| Symptom scales/itemsb) | ||||||
| Fatigue | 21.6 | 32.2 | 0.802 | 22.1 | 30.5 | 0.393 |
| Nausea and vomiting | 9.0 | 16.2 | 0.071 | 12.4 | 11.8 | 0.035 |
| Pain | 11.8 | 15.5 | 0.967 | 11.7 | 12.2 | 0.058 |
| Dyspnea | 12.2 | 15.0 | 0.602 | 11.1 | 13.0 | 0.372 |
| Insomnia | 15.7 | 17.5 | 0.607 | 17.0 | 15.1 | 0.332 |
| Appetite loss | 14.4 | 20.2 | 0.025 | 20.0 | 13.0 | 0.003 |
| Constipation | 12.4 | 15.5 | 0.112 | 16.1 | 13.2 | 0.307 |
| Diarrhea | 13.4 | 26.9 | 0.588 | 12.3 | 22.5 | 0.080 |
| Financial difficulties | 18.7 | 21.1 | 0.271 | 15.8 | 19.4 | 0.521 |
| EORTC QLQ-STO22b) | ||||||
| Dysphagia scale | 6.6 | 16.9 | 0.140 | 8.5 | 14.6 | 0.118 |
| Pain scale | 15.2 | 22.2 | 0.125 | 18.0 | 18.5 | 0.120 |
| Reflux symptoms scale | 11.1 | 17.9 | 0.078 | 13.9 | 15.4 | 0.190 |
| Eating restrictions scale | 8.7 | 22.9 | 0.008 | 13.0 | 21.1 | 0.362 |
| Anxiety scale | 26.1 | 36.3 | 0.773 | 26.8 | 32.4 | 0.092 |
| Having a dry mouth | 18.4 | 25.8 | 0.623 | 19.6 | 23.2 | 0.320 |
| Taste | 6.4 | 15.1 | 0.165 | 9.0 | 10.9 | 0.051 |
| Body image | 19.3 | 37.4 | 0.225 | 22.9 | 32.9 | 0.113 |
| Hair loss | 18.9 | 29.5 | 0.552 | 21.5 | 27.1 | 0.558 |
Values are presented as mean score. Group 1: Patients whose BMIs were in lower categories compared to their preoperative classifications. Group 2: Patients who had maintained their BMI categories or had shifted to a higher range compared to their preoperative BMIs. QoL, quality of life; BMI, body mass index; EORTC QLQ, European Organization for Research and Treatment Quality of Life Questionnaire.
a)
A higher score represents a better QoL,
b)
A higher score represents a worse QoL.