Table 2. HADS-anxiety, HADS-depression and SF-12 mean scores in the three groups prior screening (baseline).
| FS (s.d.) | FIT (s.d.) | Control (s.d.) | P-valuea | P-valueb FS vs Control (Cohens d) | P-valueb FIT vs Control (Cohens d) | |
|---|---|---|---|---|---|---|
|
HADS | ||||||
| Anxiety | 3.20 (3.07) | 3.64 (3.53) | 3.68 (3.58) | <0.01 | <0.01 (0.1) | 0.75 |
| Depression | 2.31 (2.63) | 2.63 (3.09) | 2.63 (3.00) | <0.01 | <0.01 (0.1) | 0.98 |
|
SF-12 | ||||||
| Physical Functioning | 87.5 (23.6) | 85.9 (26.0) | 87.2 (23.3) | 0.12 | ||
| Role Physical | 85.1 (34.4) | 82.1 (37.0) | 82.3 (34.8) | 0.01 | 0.01 (−0.1) | 0.89 |
| Role Emotional | 89.8 (28.0) | 87.8 (30.6) | 85.7 (32.3) | <0.01 | <0.01 (−0.1) | 0.04 (−0.1) |
| Mental Health | 83.4 (17.0) | 80.7 (18.6) | 80.5 (19.3) | <0.01 | <0.01 (−0.2) | 0.72 |
| General Health | 70.0 (22.6) | 70.0 (24.2) | 70.1 (24.4) | 0.99 | ||
| Bodily Pain | 84.6 (22.5) | 83.4 (23.5) | 83.1 (23.0) | 0.09 | ||
| Vitality | 62.8 (25.6) | 61.5 (26.3) | 61.0 (26.3) | 0.07 | ||
| Social Functioning | 91.4 (17.5) | 88.6 (21.0) | 88.2 (21.7) | <0.01 | <0.01 (−0.1) | 0.56 |
Abbreviations: ANOVA=analysis of variance; FS=flexible sigmoidoscopy; FIT=faecal immunochemical test; HADS=Hospital Anxiety and Depression Scale.
The bold and italics values illustrate that the P-value reached criteria for statistical significance.
a
ANOVA adjusted for age, sex, education, marital status, and work.
b
Contrast analysis probing the significant ANOVA effect. A Cohens d above 0.5 is considered clinically relevant.