Table 4.
Descriptive statistics on functional outcomes
| Current use | ||||
|---|---|---|---|---|
| Abstinent (n=63) | Low use (n=24) | Heavy use (n=24) | Total (N=111) | |
| Physical Health | ||||
| PROMIS Global Health-Physical, Mean (SD)*, ac, bc | 48.3 (9.2) | 50.9 (7.4) | 42.2 (8.4) | 47.4 (9.1) |
| St. George’s Respiratory Questionnaire (SGRQ), Mean (SD) | 24.1 (24.8) | 24.4 (30.0) | 35.0 (32.0) | 26.0 (27.7) |
| PROMIS Sleep Disturbance (PSD), Mean (SD)**, ac | 50.5 (9.4) | 54.0 (9.0) | 58.6 (11.5) | 52.8 (10.3) |
| Simplified Nutritional Appetite Questionnaire (SNAQ), Mean | ||||
| (SD)**, ac, bc | 15.5 (2.8) | 15.0 (2.8) | 12.5 (3.7) | 14.8 (3.2) |
| High risk of weight loss within 6 months (<=14) (%)** | 25.4 | 29.2 | 70.8 | 35.4 |
| Mental Health | ||||
| Hospital Anxiety and Depression Scale (HADS) | ||||
| Anxiety, Mean (SD)**, ac | 5.6 (4.3) | 7.2 (3.8) | 8.2 (4.7) | 6.5 (4.4) |
| Normal (%) | 67.2 | 56.5 | 45.8 | 60.9 |
| Borderline abnormal (%) | 16.4 | 21.7 | 16.7 | 17.3 |
| Abnormal (%) | 16.4 | 21.7 | 37.5 | 21.8 |
| Depression, Mean (SD)**,ac | 5.2 (4.4) | 6.5 (3.6) | 8.2 (4.3) | 5.9 (5.6) |
| Normal (%) | 68.9 | 60.9 | 41.7 | 61.8 |
| Borderline abnormal (%) | 16.4 | 17.4 | 33.3 | 20.0 |
| Abnormal (%) | 14.8 | 21.7 | 25.0 | 18.2 |
| Patient Health Questionniare-9 (PHQ-9), Mean (SD)**, ac, bc | 4.9 (5.0) | 5.2 (3.7) | 9.8 (7.2) | 5.9 (5.6) |
| Cognition, Mean (SD) | ||||
| PROMIS Cognitive Function (PCS)**, ac | 52.4 (9.4) | 47.2 (8.2) | 42.4 (12.0) | 49.0 (10.5) |
| PROMIS Cognitive Function Abilities (PCSA) | 51.1 (10.5) | 50.2 (10.2) | 46.1 (9.2) | 49.7 (10.2) |
Group comparison based on Chi-square test for categorical variables or ANOVA test for continuous variables
*
P<0.05,
**
P<0.01
Pairwise comparison of mean scores based on the Tukey-Kramer method
a
= no use,
b
= low use,
c
= heavy use