Table 2.

Multivariable analysis

	Variables	Multivariable logistic regression
		OR (95%CI)	P
Knowledge
	Residence
	Non-urban	REF
	Urban	1.066 (0.747–1.521)	0.726
	Education
	Primary school and below	REF
	Middle school, high school, and technical secondary school	1.172 (0.811–1.692)	0.399
	College and above	2.696 (1.578–4.603)	< 0.001
	Monthly income, CNY
	< 5000	REF
	5001–10,000	0.869 (0.558–1.352)	0.533
	> 10,000	1.688 (1.011–2.818)	0.045
	Sarcopenia
	Yes	2.809 (1.677–4.703)	< 0.001
	None	REF
	Publicity and education on sarcopenia
	Yes	2.262 (1.121–4.563)	0.023
	None	REF
	Screening for sarcopenia
	Yes	1.114 (0.506–2.450)	0.789
	None	REF
Attitude
	Knowledge score	1.228 (1.184–1.274)	< 0.001
	Residence
	Non-urban	REF
	Urban	0.931 (0.677–1.301)	0.677
	Education
	Primary school and below	REF
	Middle school, high school, and technical secondary school	1.022 (0.740–1.412)	0.893
	College and above	1.254 (0.742–2.120)	0.398
	Patients with sarcopenia
	Yes	1.119 (0.642–1.948)	0.692
	No	REF
	Hospital type
	Public tertiary hospitals	REF
	Public secondary hospitals	0.698 (0.486–1.002)	0.051
	Public primary hospitals	0.888 (0.426–1.852)	0.752
	Private hospitals	1.192 (0.673–2.109)	0.547
Practice
	Knowledge score	0.978 (0.915–1.046)	0.518
	Attitude score	1.361 (1.252–1.479)	< 0.001
	Duration of dialysis, years
	≤ 1	REF
	1.1–3	0.602 (0.260–1.394)	0.237
	3.1–5	0.415 (0.165–1.043)	0.061
	5.1–10	0.383 (0.151–0.967)	0.042
	> 10	0.736 (0.297–1.823)	0.508
	Hospital type
	Public tertiary hospitals	REF
	Public secondary hospitals	1.069 (0.555–2.059)	0.841
	Public primary hospitals	4.672 (1.797–12.142)	0.002
	Private hospitals	0.555 (0.154–1.996)	0.367

CNY: Chinese Yuan