Table 3.

Unadjusted and adjusted Cox proportional hazard risk estimates of illness perceptions on mortality of stage I–III progression-free CRC survivors (n = 1552)

BIPQ dimension	BIPQ scorea	Deaths	Model 1 (unadjusted); HR (95 % CI)	Model 2 (Model 1 + demographics); HR (95 % CI)	Model 3 (Model 2 + clinical); HR (95 % CI)	Model 4 (Model 3 + lifestyle); HR (95 % CI)
BIPQ1 - consequences	+	184/1233	ref	ref	ref	ref
	−	64/311	1.47 (1.11-1.96)	1.66 (1.23-2.23)	1.62 (1.21-2.18)	1.60 (1.14-2.25)
BIPQ2 - timeline	+	166/1146	ref	ref	ref	ref
	−	69/325	1.57 (1.19-2.08)	1.43 (1.07-1.91)	1.44 (1.07-1.93)	1.32 (0.94-1.86)
BIPQ3 - personal control	+	185/1161	ref	ref	ref	ref
	−	54/338	0.96 (0.71-1.30)	0.91 (0.67-1.24)	0.93 (0.68-1.27)	1.00 (0.70-1.42)
BIPQ4 - treatment control	+	168/1135	ref	ref	ref	ref
	−	62/327	1.30 (0.97-1.74)	1.15 (0.85-1.55)	1.16 (0.86-1.57)	1.13 (0.80-1.58)
BIPQ5 - identity	+	172/1161	ref	ref	ref	ref
	−	68/351	1.34 (1.01-1.77)	1.54 (1.15-2.05)	1.51 (1.13-2.02)	1.31 (0.92-1.85)
BIPQ6 - concern	+	184/1209	ref	ref	ref	ref
	−	56/313	1.25 (0.93-1.69)	1.47 (1.09-2.00)	1.48 (1.09-2.01)	1.35 (0.94-1.92)
BIPQ7 - coherence	+	179/1193	ref	ref	ref	ref
	−	57/313	1.18 (0.88-1.59)	1.25 (0.93-1.69)	1.25 (0.92-1.69)	1.07 (0.75-1.52)
BIPQ8 – emotion	+	171/1178	ref	ref	ref	ref
	−	66/338	1.38 (1.04-1.84)	1.67 (1.25-2.24)	1.63 (1.22-2.19)	1.65 (1.18-2.31)

Demographics: age at survey, gender, relationship status, and education level; clinical: type of cancer, stage of cancer, and comorbid conditions; lifestyle: BMI, smoking, alcohol consumption, and physical activity

HR hazard ratio, CI confidence interval

^aBIPQ: Brief Illness Perception Questionnaire. The 75th interquartile score was used as the cutoff, whereby higher score indicates negative perceptions