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Table 3 Comparison of ‘Knowledge of CLABSI Prevention Questionnaire’ based on demographic and other variables

From: Prevention of central line-associated bloodstream infections: a survey of ICU nurses’ knowledge and practice in China

Characteristics Mean ± SD Range Significantly different from group t/F P
Total cohort (N = 835) 4.02 ± 2.11 0–11    
Sex     6.53  < 0.001
 Male (n = 337) 3.46 ± 1.92 0–9 Female   
 Female (n = 498) 4.40 ± 2.15 0–11 Male   
Length of ICU nursing     31.89  < 0.001
 A. < 1 year (n = 435) 3.36 ± 1.91 0–9 B, C, D, E   
 B. 1– < 3 years (n = 154) 4.18 ± 1.82 0–8 A, D, E   
 C. 3– < 5 years (n = 99) 4.85 ± 2.15 0–9 A   
 D. 5–10 years (n = 94) 5.18 ± 2.03 0–10 A, B   
 E. > 10 years (n = 53) 5.42 ± 2.35 0–11 A, B   
Highest educational level     5.92 0.001
 A. Secondary school (n = 117) 3.68 ± 1.88 0–9 C   
 B. Tertiary school (n = 337) 3.78 ± 2.08 0–9 C   
 C. Undergraduate (n = 335) 4.39 ± 2.12 0–10 A, B   
 D. Postgraduate (n = 46) 4.00 ± 2.40 0–11   
Nursing level     10.75  < 0.001
 A. Nurse (n = 436) 3.68 ± 1.98 0–9 B, C   
 B. Nurse practitioner (n = 227) 4.44 ± 2.14 0–10 A   
 C. Nurse-in-charge (chief nurse) (n = 118) 4.63 ± 2.23 0–11 A   
 D. Deputy chief nurse and above (n = 54) 3.74 ± 2.11 0–9   
Establishment of nurses     18.89  < 0.001
 A. Establishment nurses (n = 301) 3.71 ± 1.93 0–11 C   
 B. Personnel agent nurses(n = 180) 3.54 ± 1.93 0–9 C   
 C. Contract nurses (n = 354) 4.53 ± 2.23 0–10 A, B   
Hospital grade     14.20  < 0.001
 A. Grade A tertiary hospital (n = 553) 4.05 ± 1.95 0–11 C, D   
 B. Grade B tertiary hospital (n = 87) 3.53 ± 2.05 0–8 C   
 C. Grade A secondary hospital (n = 146) 4.67 ± 2.38 0–10 A, B, D   
 D. Grade B secondary hospital (n = 49) 2.61 ± 2.23 0–8 A, C   
Incidence of CLABSI in department last year (per 1000 catheter days)     6.19  < 0.001
 A. < 1‰ (n = 325) 3.75 ± 1.93 0–9 B   
 B. 1‰– < 3‰ (n = 232) 4.48 ± 1.94 0–10 A, E   
 C. 3‰–5‰ (n = 87) 4.44 ± 1.97 0–9   
 D. > 5‰ (n = 20) 4.20 ± 1.85 2–9   
 E. Do not know (n = 171) 3.68 ± 2.57 0–11 B   
  1. CLABSI, central line-associated bloodstream infection
  2. Post-hoc comparisons were performed using the Bonferroni test when overall significance was indicated by one-way ANOVA