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Table 2 Binary logistic regression examining factors associated with ERI

From: Evaluating effort-reward imbalance among nurses in emergency departments: a cross-sectional study in China

  OR (95%CI) P
Age
 < 25 1.00(reference)  
 25 ~ 34 1.13 (1.03–1.24) 0.016*
 > 34 1.03 (0.90–1.19) 0.653
Sex
 Male 1.24 (1.11–1.39) < 0.001**
 Female 1.00(reference)  
Education level
 Vocational diploma or lessa 1.00(reference)  
 Associate degreeb 1.12 (0.97–1.28) 0.113
 Bachelor degree or above 1.21 (1.05–1.39) 0.009*
Title
 None 1.00(reference)  
 Junior 1.13 (1.02–1.25) 0.015*
 Intermediate or above 1.43 (1.24–1.65) < 0.001**
Monthly income (YUAN)
 ≤ 2499 1.00(reference)  
 2500 ~ 4000 0.84 (0.76–0.92) < 0.001**
 4001 ~ 6000 0.76 (0.69–0.85) < 0.001**
 ≥ 6001 0.73 (0.64–0.82) < 0.001**
Years of service
 < 1 1.00(reference)  
 1–5 1.34 (1.21–1.48) < 0.001**
 6–10 1.58 (1.40–1.78) < 0.001**
 ≥ 11 1.48 (1.28–1.71) < 0.001**
Frequency of night shifts (per month)
 0 ~ 5 1.00(reference)  
 6 ~ 10 1.09 (1.01–1.18) 0.028*
 11 ~ 15 1.29 (1.17–1.41) < 0.001**
 ≥ 16 1.93 (1.61–2.31) < 0.001**
Shortage of nurses
 Does not meet demands 1.00(reference)  
 General 0.46 (0.42–0.49) < 0.001**
 Meets demands 0.32 (0.30–0.35) < 0.001**
Workplace verbal violence (times)
 0 1.00(reference)  
 1 ~ 3 1.64 (1.52–1.76) < 0.001**
 ≥ 4 2.72 (2.48–2.99) < 0.001**
Workplace physical violence
 Yes 1.32 (1.19–1.48) < 0.001**
 No 1.00(reference)  
  1. *P value < 0.05, **p value < 0.001, Hosmer and Lemeshow goodness of fit test (p-value = 0.309)
  2. aA vocational diploma refers that students graduating from senior middle school receive 2 years of education in vocational schools, or students graduating from junior middle school receive 3 years of education in vocational schools
  3. bAn associate degree refers that students graduating from senior middle school (grade year 10 to year 12) receive 3 years of education in college, or students graduating from junior middle school (grade year 7 to year 9) receive 5 years of education in college