Univariate analysis of the IES scores of the study respondents^a

	IES score (median [IQR])	p value
Gender
Male	8.00 (1.00–17.00)	0.616
Female	8.00 (1.00–21.5)
Age, years
≤40	6.50 (1.00.14.00)	0.097
41–60	9.00 (3.00–23.00)
≥61	8.00 (0.00–14.00)
Marital status
Married	8.00 (2.00–19.00)	0.268
Single	5.00 (1.00–13.00)
Divorced	13.00 (5.00–26.00)
Widowed	9.00 (0.00–24.75)
Education
Primary	12.0 (1.50–28.75)	0.0408
Junior	8.00 (1.00–18.75)
Senior	11.00 (3.00–18.25)
University degree or above	7.00 (1.00–19.00)
Occupation
Medical staff	3.00 (1.00–13.00)	0.762
Worker/farmer	8.00 (1.50–15.50)
Teacher	6.00 (1.00–11.00)
Government	9.00 (3.75–27.25
Company employee	5.00 (1.00–19.25)
Retired	11.00 (0.00–27.00)
Unemployment or others	9.00 (2.00–20.00)
Habitation
City of Chengdu	10.00 (3.00–23.00)	0.012
Other areas outside Chengdu	6.00 (1.00–13.50)
Dialysis vintage, years
<1	5.00 (0.00–13.50)	0.006
1–2	6.00 (1.00–16.25)
3–5	8.00 (3.00–23.50)
<5	13.00 (5.00–23.00)
Dialysis modality
HD 11.5	(3.00–25.00)	0.020
PD	8.00 (1.00–15.00)
Frequency to hospital per week
0	7.00 (1.00–14.00)	0.041
1–2	10.50 (1.25–21.25)
≥3	12.00 (3.00.25.00)
Influence on severity of illness
No	4.00 (1.00–11.00)	0.000
Mild	10.00 (2.00–19.00)
Moderate	20.00 (8.75–26.25)
Severe	21.50 (7.75–56.25)
Influence on daily life
No	5.00 (0.00–11.00)	0.000
Mild	7.00 (2.00–15.25)
Moderate	14.00 (5.00–27.00)
Severe	21.50 (11.75–40.5)
Who went to the hospital
Only myself	8.5 (2.00–19.00)	0.889
Replaced by family members	8.00 (2.00–19.00)
Accompanied by family	8.00 (1.50–17.50)
Confidence in overcoming the disease
Full	6.00 (1.00–15.00)	0.000
Moderate	13.00 (7.250–23.00)
Rare	27.00 (6.00)
Relationship with family
Better	10.00 (2.50–24.50)	0.050
Same	7.00 (1.75–16.25)
Worse	20.00 (7.5–28.50)

IQR, interquartile range; IES, Impact of Event Scale; HD, hemodialysis; PD, peritoneal dialysis.

^aThis table is the same as Table 5 but we provided specific IES scores in this table.