Table 3: Association between demographic factors and personality factors with burnout using univariate logistic regression. Effects are presented as odds-ratio and associated 95% confidence intervals.

High emotional exhaustionHigh depersonalizationLow personal accomplishment
Univariate OR, 95% CI valueUnivariate OR, 95% CI valueUnivariate OR, 95% CI value

GenderFemale111
Male1.20 (0.83–1.73)0.3331.58 (1.10–2.27)0.0130.95 (0.66–1.37)0.764

Age (years)Overall<0.0005<0.00050.002
≤29111
30–390.77 (0.61–0.98)0.0350.71 (0.55–0.90)0.0050.98 (0.77–1.25)0.855
40–490.41 (0.30–0.56)<0.00050.35 (0.26–0.49)<0.00050.78 (0.59–1.04)0.095
50–590.57 (0.39–0.83)0.0040.42 (0.28–0.62)<0.00050.79 (0.55–1.13)0.200
≥600.20 (0.08–0.52)0.0010.10 (0.03–0.34)<0.00050.24 (0.12–0.51)<0.0005

RaceOverall0.010<0.0005<0.0005
Chinese111
Malay1.12 (0.87–1.45)0.3751.03 (0.80–1.32)0.8461.45 (1.11–1.90)0.006
Indian0.68 (0.49–0.92)0.0140.62 (0.46–0.85)0.0031.20 (0.88–1.62)0.249
Filipino0.71 (0.53–0.96)0.0240.52 (0.39–0.70)<0.00050.65 (0.49–0.86)0.002
Others0.87 (0.62–1.24)0.4400.55 (0.38–0.79)0.0011.06 (0.75–1.49)0.755

Highest qualificationsOverall0.001<0.0005<0.0005
Vocational training111
Diploma1.65 (1.24–2.19)0.0011.87 (1.41–2.49)<0.00050.91 (0.68–1.21)0.514
Advanced diploma1.76 (1.23–2.53)0.0021.65 (1.15–2.38)0.0070.80 (0.56–1.16)0.243
Bachelor/postgraduate1.20 (0.92–1.57)0.1761.22 (0.93–1.59)0.1490.52 (0.40–0.68)<0.0005

Job gradeOverall<0.0005<0.0005<0.0005
Enrolled nurse111
Staff nurse1.72 (1.35–2.18)<0.00051.63 (1.29–2.06)<0.00050.76 (0.61–0.96)0.023
Nursing officer0.88 (0.57–1.36)0.5630.82 (0.53–1.26)0.3680.41 (0.28–0.61)<0.0005

Shift patternsOverall<0.0005<0.00050.262
Fixed hours111
2 shifts0.82 (0.50–1.34)0.4231.08 (0.67–1.75)0.7531.32 (0.84–2.08)0.231
3 shifts1.52 (1.14–2.02)0.0041.76 (1.32–2.36)<0.00051.29 (0.98–1.69)0.068
Permanent night0.75 (0.45–1.27)0.2820.93 (0.55–1.55)0.7681.45 (0.90–2.34)0.125

Years working in current hospitalOverall<0.0005<0.00050.005
<10111
10–190.72 (0.52–0.99)0.0460.51 (0.36 –0.72)<0.00050.75 (0.55–1.03)0.072
20–290.54 (0.38–0.75)<0.00050.47 (0.33 –0.66)<0.00050.64 (0.47–0.87)0.004
≥300.44 (0.28–0.70)0.0010.37 (0.23–0.59)<0.00050.66 (0.44–0.99)0.042

DependentsNo111
Yes1.11 (0.89–1.40)0.3591.21 (0.96–1.53)0.1030.89 (0.71–1.12)0.304

NeuroticismVL, L, A111
H, VH3.93 (3.15–4.89)<0.00053.44 (2.77–4.27)<0.00052.38 (1.89–2.99)<0.0005

ExtraversionA, H, VH111
L, VL2.17 (1.69–2.79)<0.00051.70 (1.33–2.18)<0.00053.59 (2.65–4.86)<0.0005

OpennessA, H, VH111
L, VL1.02 (0.81–1.30)0.8431.24 (0.98–1.57)0.0702.17 (1.69–2.80)<0.0005

AgreeablenessA, H, VH111
L, VL1.92 (1.54–2.41)<0.00052.35 (1.87–2.95)<0.00051.72 (1.36–2.18)<0.0005

ConscientiousnessA, H, VH111
L, VL1.77 (1.39–2.26)<0.00052.16 (1.69–2.76)<0.00052.80 (2.11–3.71)<0.0005

Number of negative personality traitsOverall<0.0005<0.0005<0.0005
0111
11.73 (1.36–2.22)<0.00052.07 (1.62–2.64)<0.00051.81 (1.43–2.29)<0.0005
22.61 (1.97–3.46)<0.00052.94 (2.21–3.91)<0.00053.59 (2.65–4.85)<0.0005
33.60 (2.52–5.16)<0.00054.39 (3.05–6.32)<0.00054.85 (3.19–7.39)<0.0005
≥45.60 (3.46–9.04)<0.00055.66 (3.51–9.13)<0.00057.54 (4.03–14.12)<0.0005