Illness perceptions and stress: mediators between disease severity and psychological well-being and quality of life among patients with Crohn’s disease

Figures & data

Table 1 Proportion of different levels of anxiety and depression

	Normal (0–7)	Mild (8–10)	Moderate (11–15)	Severe (16–21)
Anxiety (%)	16.98	57.23	25.16	0.63
Depression (%)	40.25	44.03	15.72	0

Table 2 Pearson’s correlations (and significance values) and descriptive values of the CSM variables

	Disease severity	Illness perceptions	Problem-focused coping	Emotion-focused coping	Maladaptive coping	Stress	Anxiety	Depression	Quality of life	Mean (SD)
Disease severity	–	–	–	–	–	–	–	–	–	121.69 (62.49)
Illness perceptions	0.39***	–	–	–	–	–	–	–	–	40.77 (12.32)
Problem-focused coping	−0.02	0.02	–	–	–	–	–	–	–	13.01 (3.73)
Emotion-focused coping	−0.15	−0.05	0.65***	–	–	–	–	–	–	18.04 (5.37)
Maladaptive coping	0.28***	0.47***	0.11	0.11	–	–	–	–	–	11.08 (6.00)
Stress	0.28***	0.69***	−0.05	−0.04	0.57***	–	–	–	–	0.40 (0.14)
Anxiety	0.26***	0.62***	0.03	−0.01	0.42***	0.68***	–	–	–	9.44 (2.07)
Depression	0.23**	0.57***	−0.20*	−0.14	0.37***	0.52***	0.59***	–	–	8.24 (2.17)
Quality of life	−0.56***	−0.73***	−0.04	0.04	−0.55***	−0.72***	−0.69***	−0.48***	–	165.91 (34.51)

Notes:

* P<0.05;

** P<0.01;

*** P<0.001.

Abbreviations: CSM, Common Sense Model; SD, standard deviation.

Table 3 Pearson’s correlations (and significance values) between illness perceptions, psychological measures and quality of life

	Anxiety	Depression	Quality of life
Consequences	0.52***	0.43***	−0.56***
Timeline	0.20*	0.31***	−0.22***
Personal control	0.31***	0.20*	−0.43***
Treatment control	0.18*	0.16*	−0.30***
Identity	0.31***	0.31***	−0.38***
Concern	0.57***	0.48***	−0.62***
Understanding	0.07	0.09	−0.09
Emotional response	0.57***	0.51***	−0.63***

Notes:

* P<0.05;

*** P<0.001.

Table 4 Pearson’s correlations (and significance values) between coping strategies, psychological measures and quality of life

	Anxiety	Depression	Quality of life
Active coping	0.01	−0.20*	−0.01
Planning	−0.08	−0.31***	0.08
Positive r	−0.18*	−0.25***	0.20*
Acceptance	−0.13	−0.19*	0.15
Humor	−0.15	−0.22**	0.22**
Religion	0.31***	0.17*	−0.22**
Using emotional support	0.05	−0.02	−0.15
Using instrumental support	0.12	0.02	−0.16*
Self-distraction	0.15	0.02	−0.19*
Denial	0.32***	0.19*	−0.33***
Venting	0.43***	0.42***	−0.58***
Substance use	0.16	0.16*	−0.27***
Behavioral disengagement	0.28***	0.17*	−0.35***
Self-blame	0.19*	0.32***	−0.25**

Notes:

* P<0.05;

** P<0.01;

*** P<0.001.

Table 5 Pearson’s correlations (and significance values) between stress, psychological measures and quality of life

	Anxiety	Depression	Quality of life
Harassment	0.52***	0.39***	−0.53***
Overload	0.26***	0.20*	−0.30***
Irritability	0.49***	0.51***	−0.52***
Lack of joy	0.62***	0.57***	−0.55***
Fatigue	0.61***	0.53***	−0.72***
Worries	0.66***	0.53***	−0.71***
Tension	0.60***	0.52***	−0.65***

Notes:

* P<0.05;

*** P<0.001.

Figure 1 Final CSM (nonsignificant pathways or variables removed, ^***P<0.001).

Notes: The values represent standardized path coefficients.
Abbreviation: CSM, Common Sense Model.