Table 2: Participants’ demographics and personality factors against components of Maslach Burnout Inventory (MBI).
(a) Participants’ demographics and prevalence of burnout

Emotional exhaustionDepersonalizationPersonal accomplishment
Low/average (%)High (%)Low/average (%)High (%)Average/high (%)Low (%)

GenderFemale1002 (61.5)627 (38.5)998 (61.3)631 (38.7)663 (40.7)966 (59.3)
Male72 (57.1)54 (42.9)63 (50)63 (50)53 (42.1)73 (57.9)

Age (years)≤29512 (55.4)413 (44.6)489 (52.9)436 (47.1)357 (38.6)568 (61.4)
30–39241 (61.6)150 (38.4)240 (61.4)151 (38.6)153 (39.1)238 (60.9)
40–49179 (75.2)59 (24.8)181 (76.1)57 (23.9)106 (44.5)132 (55.5)
50–5996 (68.6)44 (31.4)102 (72.9)38 (27.1)62 (44.3)78 (55.7)
≥6031 (86.1)5 (13.9)33 (91.7)3 (8.3)26 (72.2)10 (27.8)

RaceChinese456 (59.1)316 (40.9)430 (55.7)342 (44.3)320 (41.5)452 (58.5)
Malay194 (56.2)151 (43.8)190 (55.1)155 (44.9)113 (32.8)232 (67.2)
Indian154 (68.1)72 (31.9)151 (66.8)75 (33.2)84 (37.2)142 (62.8)
Filipino178 (66.9)88 (33.1)188 (70.7)78 (29.3)139 (52.3)127 (47.7)
Others101 (62.3)61 (37.7)112 (69.6)49 (30.4)65 (40.1)97 (59.9)

Highest qualificationVocational training245 (67.7)117 (32.3)245 (67.7)117 (32.3)120 (33.1)242 (66.9)
Diploma263 (56)207 (44)248 (52.8)222 (47.2)166 (35.3)304 (64.7)
Advanced diploma101 (54.3)85 (45.7)104 (55.9)82 (44.1)71 (38.2)115 (61.8)
Bachelor/postgraduate449 (63.5)258 (36.5)447 (63.2)260 (36.8)344 (48.7)363 (51.3)

Job gradeEnrolled nurse290 (69.5)127 (30.5)283 (68)133 (32)145 (34.8)272 (65.2)
Staff nurse689 (57.1)518 (42.9)684 (56.7)523 (43.3)496 (41.1)711 (58.9)
Nursing officer96 (72.2)37 (27.8)96 (72.2)37 (27.8)75 (56.4)58 (43.6)

Shift patternsFixed hours171 (67.9)81 (32.1)176 (70.1)75 (29.9)117 (46.4)135 (53.6)
2 shifts80 (72.1)31 (27.9)76 (68.5)35 (31.5)44 (39.6)67 (60.4)
3 shifts741 (58.2)532 (41.8)727 (57.1)546 (42.9)512 (40.2)761 (59.8)
Permanent night73 (73.7)26 (26.3)71 (71.7)28 (28.3)37 (37.4)62 (62.6)

Years working in current hospital<10739 (57.9)537 (42.1)714 (56)562 (44)489 (38.3)787 (61.7)
10–19119 (65.7)62 (34.3)129 (71.3)52 (28.7)82 (45.3)99 (54.7)
20–29131 (72)51 (28)133 (73.1)49 (26.9)90 (49.5)92 (50.5)
≥3078 (75.7)25 (24.3)80 (77.7)23 (22.3)50 (48.5)53 (51.5)

DependentsNo253 (63.1)148 (36.9)257 (64.1)144 (35.9)155 (38.7)246 (61.3)
Yes818 (60.5)533 (39.5)804 (59.6)546 (40.4)561 (41.5)790 (58.5)

(b) Participants’ personality and prevalence of burnout

Emotional exhaustionDepersonalizationPersonal accomplishment
Low/average (%)High (%)Low/average (%)High (%)Average/high (%)Low (%)

NeuroticismVL, L, A875 (70.5)366 (29.5)856 (69)385 (31)576 (46.4)665 (53.6)
H, VH187 (37.9)307 (62.1)194 (39.3)300 (60.7)132 (26.7)362 (73.3)

ExtraversionA, H, VH922 (64.6)506 (35.4)897 (62.8)531 (37.2)650 (45.5)778 (54.5)
L, VL140 (45.6)167 (54.4)153 (49.8)154 (50.2)58 (18.9)249 (81.1)

OpennessA, H, VH839 (61.3)529 (38.7)843 (61.6)525 (38.4)609 (44.5)759 (55.5)
L, VL223 (60.8)144 (39.2)207 (56.4)160 (43.6)99 (27)268 (73)

AgreeablenessA, H, VH865 (64.9)468 (35.1)871 (65.3)462 (34.7)583 (43.7)750 (56.3)
L, VL197 (49)205 (51)179 (44.5)223 (55.5)125 (31.1)277 (68.9)

ConscientiousnessA, H, VH903 (63.8)513 (36.2)906 (64)510 (36)636 (44.9)780 (55.1)
L, VL159 (49.8)160 (50.2)144 (45.1)175 (54.9)72 (22.6)247 (77.4)

Number of negative personality traits0524 (73)194 (27)533 (74.2)185 (25.8)395 (55)323 (45)
1296 (60.9)190 (39.1)283 (58.2)203 (41.8)196 (40.3)290 (59.7)
2148 (50.9)143 (49.1)144 (49.5)147 (50.5)74 (25.4)217 (74.6)
366 (42.9)88 (57.1)61 (39.6)93 (60.4)31 (20.1)123 (79.9)
≥428 (32.6)58 (67.4)29 (33.7)57 (66.3)12 (14)74 (86)

Higher risk of burnout.
Categories for personality factors relative to risk of burnout: VL: very low; L: low; A: average; H: high; VH: very high.