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Journal of Clinical and
            Basic Psychosomatics                                   Emotional exhaustion and work–family conflict in physicians




            Table 2. The results of the univariate analysis    3.3. The relationship between WFC and EE
             EE              Statistics  β (95%CI)  P‑value    First,  WFC  and  EE  underwent  a  linear  regression
            Sex (n, %)                                         analysis. The non-adjusted and adjusted models are
             Male          1356 (54.07%)  0 (reference)        displayed in  Table 3. WFC and EE were associated
                                                               in  the  crude  model  (β  =  0.76,  95%  CI:  0.71  –  0.81,
             Female        1152 (45.93%) −0.93 (−1.48 – −0.38)  0.001  P < 0.001), the minimally adjusted model (adjusted age,
            Age (n, %)                                         sex) (β = 0.75, 95% CI: 0.70 – 0.80, P < 0.001), and the fully
             <25            113 (4.49%)  0 (reference)         adjusted model (β = 0.72, 95% CI: 0.67 – 0.77, P < 0.001). For
             25 – 34       1233 (49.05%)  0.18 (−1.17 – 1.52)  0.799  the sensitivity analysis, WFC was categorized into quartiles,
             35 – 44       773 (30.75%)  −0.19 (−1.57 – 1.20)  0.792  and the same trend was found (P for trend < 0.001).
             45 – 54       318 (12.65%)  −1.35 (−2.85 – 0.15)  0.079  3.4. Analyses of the non-linear relationship
             >54            77 (3.06%)  −1.91 (−3.94 – 0.12)  0.065
            Marital status (n, %)                              After considering factors including sex, age, marital status,
                                                               education, hospital grade, hospital category, department,
             Unmarried     546 (21.77%)  0 (reference)         job experience, title, and FWC, it was projected that the
             Married       1,962 (78.23%) −0.42 (−1.09 – 0.24)  0.215  link between WFC and EE would not be linear. Table 4
            Education (n, %)                                   and  Figure  1  display  the  findings  of  this  investigation.
             Junior College  611 (24.42%)  0 (reference)       The inflection point in a two-piecewise linear regression
             Undergraduate  1339 (53.52%)  1.99 (1.33 – 2.66)  <0.001  model was 8.0. A  negative correlation between WFC
             Postgraduate  552 (22.06%)  3.02 (2.22 – 3.82)  <0.001  and EE was discovered to the left of the inflection point
                                                               (β = −0.61, 95% CI: −1.17 – −0.05, P = 0.034). WFC and
            Hospital grade (n, %)                              EE had a favorable connection to the right of the inflection
             Tertiary hospital  1456 (57.55%)  0 (reference)   point (β = 0.79, 95% CI: 0.74 – 0.85, P < 0.001).
             Secondary     325 (12.85%) −2.96 (−3.78 – −2.14)  <0.001
             hospital                                          3.5. The results of subgroup analyses
             Primary hospital  749 (29.60%) −3.42 (−4.03 – −2.82)  <0.001  In subgroup analysis, patients were divided into different
            Categories of                                      subgroups according to various factors, including gender,
            hospitals (n, %)                                   age, marital status, education, hospital grade, categories of
             General hospital  2080 (82.21%)  0 (reference)    hospitals, department, work experience, and title (Table 5).
             Specialized   450 (17.79%)  1.61 (0.90 – 2.33)  <0.001  Table 5 shows that WFC and EE were positively correlated
             hospital                                          at all levels of stratification factors (all  P  < 0.001). In
            Department (n, %)                                  contrast to age, department, job experience, and title, the
             Physician     1021 (40.58%)  0 (reference)        test for interactions was not statistically significant for
             Surgeon       602 (23.93%)  −0.27 (−0.98 – 0.43)  0.447  sex, marital status, education, hospital grade, and hospital
             Others        893 (35.49%) −0.84 (−1.47 – −0.21)  0.009  category.
            Work experience                                    4. Discussion
            (years) (n, %)
             <5            638 (25.51%)  0 (reference)         To the best of our knowledge, this is the first study to
             5 – 10        560 (22.39%)  0.85 (0.06 – 1.65)  0.035  employ both GLM and GAM to assess the association
                                                               between WFC and EE among Chinese physicians. In the
             11 – 20       832 (33.27%)  0.33 (−0.39 – 1.05)  0.365  present study, a significant positive correlation between
             >20           471 (18.83%) −1.31 (−2.14 – −0.48)  0.002  WFC and EE was demonstrated in the GLM, and a non-
            Title (n, %)                                       linear relationship between WFC and EE was found in the
             Senior title  581 (23.47%)  0 (reference)         GAM, with WFC’s threshold being 8.0. WFC interacted
             Intermediate title  842 (34.01%)  0.22 (−0.53 – 0.96)  0.571  with gender, marital status, educational level, and hospital
             Primary       1053 (42.53%)  0.16 (−0.55 – 0.88)  0.656  category in influencing EE.
             technical job title                                 Consistent with previous studies [16,17,19-21] , our findings
            WFC (n, %)      17.09±4.75  0.76 (0.71 – 0.81)  <0.001  also demonstrate that WFC is significantly associated
            FWC (n, %)      12.02±4.19  0.36 (0.29 – 0.42)  <0.001  with EE in linear regression analysis, irrespective of the
            Abbreviations: CI: Confidence interval; EE: Emotional exhaustion;   adjustments made to the model. Furthermore, in the
            WFC: Work–family conflict; FWC: Family–work conflict.  segmented regression analysis of the GAM, a positive


            Volume 1 Issue 1 (2023)                         5                        https://doi.org/10.36922/jcbp.1013
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