CT scanning (yes vs. no) CT scanning (yes vs. no) Colonoscopy (yes vs. no) Colonoscopy (yes vs. no) Chemotherapy (yes vs. no) Chemotherapy (yes vs. no) Radiotherapy (yes vs. no) Radiotherapy (yes vs. no)
OR (95% CI) p-value OR (95% CI) p-value OR (95% CI) p-value OR (95% CI) p-value
Clinical outcomes Clinical outcomes
Mortality 0.649 (0.528 – 0.799) <0.0001 0.554 (0.465 – 0.659) <0.0001 1.737 (1.417 – 2.129) <0.0001 1.120 (0.776 – 1.615) 0.5450
Complications 1.253 (1.081 – 1.452) 0.0028 1.126 (1.010 – 1.256) 0.0329 1.201 (1.040 – 1.387) 0.0126 1.307 (1.035 – 1.650) 0.0244
Recurrence 2.550 (1.932 – 3.365) <0.0001 1.064 (0.889 – 1.273) 0.4985 2.072 (1.689 – 2.542) <0.0001 1.032 (0.722 – 1.473) 0.8637
β (95% CI) p-value β (95% CI) p-value β (95% CI) p-value β (95% CI) p-value
PROMs
HAD Anxiety 0.441 (0.206 – 0.676) 0.0002 0.643 (0.487 – 0.800) <0.0001 0.009 (-0.213 – 0.23) 0.9398 0.935 (0.567 – 1.302) <0.0001
HAD Depression 0.125 (-0.090 – 0.34) 0.2547 -0.044 (-0.187 – 0.10) 0.5496 -0.056 (-0.259 – 0.15) 0.5880 0.492 (0.155 – 0.830) 0.0043
EuroQol-5d 0.002 (-0.01 – 0.01) 0.7897 0.001 (-0.01 – 0.01) 0.8102 -0.003 (-0.01 – 0.01) 0.6475 -0.04 (-0.05 – -0.02) 0.0002
EORTC-Q30 -0.90 (-1.68 – -0.12) 0.0237 -1.28 (-1.80 – -0.76) <0.0001 -0.80 (-1.54 – -0.07) 0.0330 -2.27 (-3.50 – -1.04) 0.0003