Table 4.
Differences in Common Symptom Severity Scores Among the Combined State Anxiety and Sleep Disturbance Latent Classes
| Symptomsa | No Anxiety + Low Sleep Disturbance (0) 59.7% (n=794) |
Moderate Anxiety + High Sleep Disturbance (1) 32.5% (n=433) |
High Anxiety + Very High Sleep Disturbance (2) 7.8% (n=104) |
Statistics |
|---|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean (SD) | ||
| Depressive symptoms (≥16.0) | 7.9 (5.8) | 17.9 (7.9) | 29.8 (10.6) | F=601.61, p<.001 0 < 1 < 2 |
| Trait anxiety (≥31.8) | 29.2 (6.0) | 41.8 (8.2) | 53.1 (8.9) | F=781.70, p<.001 0 < 1 < 2 |
| State anxiety (≥32.2) | 26.8 (6.5) | 41.5 (9.1) | 57.2 (11.2) | F=954.87, p<.001 0 < 1 < 2 |
| Morning fatigue (≥3.2) | 2.3 (1.9) | 4.1 (2.2) | 5.2 (2.2) | F=163.61, p<.001 0 < 1 < 2 |
| Evening fatigue (≥5.6) | 4.9 (2.1) | 5.9 (1.9) | 6.7 (1.8) | F=55.79, p<.001 0 < 1 < 2 |
| Morning energy (≤6.2) | 4.8 (2.3) | 4.0 (2.0) | 3.4 (2.2) | F=29.15, p<.001 0 > 1 > 2 |
| Evening energy (≤3.5) | 3.8 (2.1) | 3.3 (1.9) | 2.8 (2.2) | F=13.84, p<.001 0 > 1 > 2 |
| Attentional function (<5.0 = Low, 5 to 7.5 = Moderate, >7.5 = High) | 7.1 (1.5) | 5.5 (1.6) | 4.7 (1.8) | F=207.67. p<.001 0 > 1 > 2 |
| Types of pain None Only non-cancer pain Only cancer pain Both non-cancer and cancer pain |
33.9 (265) 17.5 (137) 25.6 (200) 22.9 (179) |
19.9 (84) 13.3 (56) 27.3 (115) 39.6 (167) |
8.7 (9) 13.6 (14) 27.2 (28) 50.5 (52) |
X2=77.34, p<.001 0 > 1 > 2 NS NS 0 < 1 and 2 |
| For the patients with pain | Mean (SD) | Mean (SD) | Mean (SD) | |
| Worst pain intensity score | 5.6 (2.5) | 6.6 (2.5) | 7.0 (2.4) | F=21.43, p<.001 0 < 1 and 2 |
| Mean pain interference score | 2.3 (2.0) | 3.8 (2.6) | 5.0 (2.8) | F=77.68, p<.001 0 < 1 < 2 |
Abbreviation: SD, standard deviation.
a
Clinically meaningful cutoff scores