Table 1 Demographics and work characteristics of ICU staff (n = 395)

Gender (n, %)

 Male

172 (43.6)

 Female

223 (56.4)

Age, years (n, %)

 20–30

94 (23.8)

 31–40

201 (50.9)

  ≥ 40

100 (25.3)

Regional distribution

 Central China

196(49.6)

 South China

199(50.4)

Educational level (n, %)

 College or below

40 (10.1)

 Bachelor

269 (68.1)

 Master or above

86 (21.8)

Professional title (n, %)

 Junior

93 (23.5)

 Intermediate

192 (48.6)

 Deputy senior or above

110 (27.9)

Hospital grade (n, %)

 Tertiary Grade A general

295 (74.7)

 Secondary specialized

11 (2.8)

 Secondary or other

89 (22.5)

Teaching hospital (n, %)

 Yes

217 (54.94)

 No

178 (45.06)

Working years (n, %)

 1–2

32 (8.1)

 3–5

35 (8.9)

 6–10

109 (27.6)

  ≥ 10

219 (55.4)

Years of CRRT practice (n, %)

 <1

80 (20.3)

 1–2

69 (17.5)

 3–5

110 (27.8)

 6–10

84 (21.3)

 >10

52 (13.2)

Professional position (n, %)

 Doctor

205 (51.9)

 Nurse

190 (48.1)

Administrative personnel (n, %)

 Yes

61 (15.4)

 No

334 (84.6)

ICU category (n, %)

 General

352 (89.11)

 Specialized

43 (10.89)

CRRT specialist panel membership (n, %)

 Yes

175 (44.3)

 No

220 (55.7)

Nurse-patient ratio in CRRT treatment (n, %)

 1:1

182 (46.08)

 1: ≥2

213 (53.92)