Table 3.
Criterion validity: MDASI-MM items compared with individual items or relevant subscales from the QLQ-C30 and QLQ-MY20 (n= 55)
| MDASI-MM individual symptom items | QLQ C-30 and QLQ MY-20 question number(s)a(subscale) | Pearson’s correlationb |
|---|---|---|
| Pain |
Q-9, 19 (QLQ C-30 pain subscale) |
0.76c |
| Fatigue |
Q-10, 12, 18 (QLQ C-30 fatigue subscale) |
0.75c |
| Nausea |
Q-14 |
0.77c |
| Shortness of breath |
Q-8 |
0.67c |
| Difficulty remembering |
Q-25 |
0.75c |
| Lack of appetite |
Q-13 |
0.66c |
| Dry mouth |
Q-40 |
0.86c |
| Numbness |
Q-43 |
0.66c |
| Constipation |
Q-16 |
0.75c |
| Diarrhea |
Q-17 |
0.71c |
| Bone aches | Q-31 | 0.69c |
a Numbered questions: Q-9: Have you had pain?; Q-19: Did pain interfere with your daily activities?; Q-10: Did you need to rest?; Q-12: Have you felt weak?; Q-18: Were you tired?; Q-14: Have you felt nauseated?; Q-8: Were you short of breath?; Q-25: Have you had difficulty remembering things?; Q-13: Have you lacked appetite?; Q-40: Have you had a dry mouth; Q-43: Did you have tingling hands or feet?; Q-16: Have you been constipated?; Q-17: Have you had diarrhea?; Q-31: Have you had bone aches or pain?
b Spearman’s correlations demonstrated similar magnitude as Pearson’s correlations.
c Significant at P < .001.