Shared decision-making for renal replacement treatment and illness perception in patients with advanced chronic kidney disease

Table 1 Baseline characteristics of participants according to the SDM groups (n = 75)

Characteristics	Overall, n = 75	General group, n = 51	Delayed group, n = 24	Statistics	p
SDM for RRT (days)
Mean ± SD	166.2 ± 178.1	59.9 ± 47.7	391.9 ± 137.5	-11.51	< 0.001
Median (interquartile range)	84 (32–280)	56 (21–88)	361 (302–443)
Age (years)	61.3 ± 12.8	60.3 ± 12.5	63.5 ± 13.4	-0.98	0.334
Age group				3.00	0.086
< 65	45 (60.0%)	34 (66.7%)	11 (45.8%)
≥ 65	30 (40.0%)	17 (33.3%)	13 (54.2%)
Gender				5.60	0.018
Male	54 (72.0%)	41 (80.4%)	13 (54.2%)
Female	21 (28.0%)	10 (19.6%)	11 (45.8%)
Education (years)				0.78	0.378
≥ 12 (Undergraduate/Graduate)	32 (42.7%)	20 (39.2%)	12 (50.0%)
< 12 (High school or below)	43 (57.3%)	31 (60.8%)	12 (50.0%)
Marital status				0.02	0.877
Married	54 (72.0%)	37 (72.5%)	17 (70.8%)
Single/Widowed	21 (28.0%)	14 (27.5%)	7 (29.2%)
Employee status				0.01	0.921
Employed	35 (46.7%)	24 (47.1%)	11 (45.8%)
Unemployed	40 (53.3%)	27 (52.9%)	13 (54.2%)
Primary caregiver				< 0.01	1.000
Own	66 (88.0%)	45 (88.2%)	21 (87.5%)
Others	9 (12.0%)	6 (11.8%)	3 (12.5%)
Main decision maker				< 0.01	0.705
Own	67 (89.3%)	46 (90.2%)	21 (87.5%)
Others	8 (10.7%)	5 (9.8%)	3 (12.5%)
Comorbidity
Diabetes mellitus	30 (40.0%)	23 (45.1%)	7 (29.2%)	1.70	0.189
Hypertension	54 (72.0%)	38 (74.5%)	16 (66.7%)	0.50	0.480
Cardiovascular disease	15 (20.0%)	14 (27.5%)	1 (4.2%)	< 0.01	0.028
Stroke	7 (9.3%)	6 (11.8%)	1 (4.2%)	< 0.01	0.419
Laboratory measurements
Initial creatinine	7.1 ± 2.1	7.5 ± 2.2	6.1 ± 1.5	3.10	0.003
Initial eGFR	7.9 ± 2.2	7.6 ± 2.3	8.5 ± 1.9	-1.80	0.084

Statistics value and p-value are estimated using independent two sample t-test, chi-squared test or Fisher’s exact test

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