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. 2020 Oct 27;10(10):e040178. doi: 10.1136/bmjopen-2020-040178

Table 3.

Sociodemographic, lifestyle behaviour and career satisfaction associated with personal CBI score by regression analysis

Factor* Personal CBI score (n=447)
Univariate Multivariable with backward selection
Coeff. 95% CI P value Coeff. 95% CI P value
Sociodemographic
 Age −0.835† (−1.159 to 0.511) <0.001† −0.437† (−0.779 to 0.095) 0.012†
 Female (vs male) 4.947† (0.962 to 8.932) 0.015† 5.100† (1.382 to 8.818) 0.007†
 Married (vs single, separated and divorced) −5.734† (−9.697 to 1.771) 0.005† NA
 Having children 7.124† (3.111 to 11.137) 0.001†
 Private setting of practice (vs public) −12.327† (−16.943 to 7.711) <0.001† −5.759† (−10.665 to 0.853) 0.022†
Health status
 Average sleep per night −6.505† (−8.497 to 4.514) <0.001† −5.200† (−7.139 to 3.262) <0.001†
 Hours of work per week 0.361† (0.233 to 0.488) <0.001† 0.226† (0.099 to 0.353) 0.001†
 Regular exercise −9.882† (−14.452 to 5.312) <0.001† −6.855† (−11.102 to 2.608) 0.002†
 Current smoker 5.117 (−16.002 to 26.235) 0.634 NA
 At-risk drinker −1.611 (−6.454 to 3.232) 0.514
 Substance use −16.402 (−33.621 to 0.817) 0.062
Career satisfaction
 Satisfied with present job position −0.35 (−5.408 to 4.708) 0.892 NA
 Satisfied with being a medical doctor 2.197 (−6.015 to 10.409) 0.599

Current smoker (current smoker vs non-smoker/ex-smoker); regular exercise (5 or more days per week for at least 10 min per day/any vigorous and moderate physical activities); private practice (private solo/private hospital/non-government organisation); public practice (university/government/hospital authority/not applicable); at-risk drinkers (>3 AUDIT-C score), the AUDIT-C score was calculated by the sum of score based on the frequency of drinking alcohol, the average number of standard drinks per day and the frequency of taking five or more drinks on one occasion, ranging from 0–12. The frequency of drinking alcohol (less than once per month/once per month/two to three times per month or once per week/two to three times per week/four to six times per week or every day) was ranked 0–4, respectively; the average number of standard drinks per day (one to two drinks/three to four drinks/five to six drinks/seven to eight drinks/nine or more drinks) was ranked 0–4, respectively; the frequency of taking five or more drinks on one occasion (never/less than once per week/monthly/weekly/daily or almost daily) was ranked 0–4, respectively.

*Variable in brackets is the reference category for independent variables. No data shown for missing value.

†Significant with p value<0.05.

AUDIT-C, Alcohol Use Disorders Identification Test Version C; CBI, Copenhagen Burnout Inventory; Coeff., coefficient; NA, not applicable.