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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Nurs Health Sci. 2021 Jul 28;23(3):628–638. doi: 10.1111/nhs.12862

TABLE 4.

Final models of regression analyses examining factors that influence fatigue in RNs

General fatigue
Variables Unadjusted
B (SE)
B (SE) R2 Cumulative
R2
t Bonferroni-adjusted p
(Constant) 5.55 (3.60) 1.54 0.50
Role of the nurse −2.32 (0.69) −0.83 (0.67) 0.03 0.03 −1.24 0.86
Intershift recovery§ −0.15 (0.01) −0.10 (0.02) 0.31 0.34 −6.61 < 0.01
Sleep disturbance 0.35 (0.04) 0.16 (0.04) 0.07 0.41 3.63 < 0.01
Decision latitude# −0.16 (0.03) −0.12 (0.03) 0.02 0.43 −4.09 < 0.01
Maladaptive coping†† 0.38 (0.07) 0.16 (0.06) 0.02 0.45 2.63 0.04
Psychologic job demands# 0.27 (0.06) 0.13 (0.06) 0.01 0.45 2.38 0.07
Supervisor social support# −0.30 (0.09) 0.19 (0.10) 0.01 0.46 1.99
0.19
Physical fatigue
Variables Unadjusted
B (SE)
B (SE) R2 Cumulative
R2
t Bonferroni-adjusted p
(Constant) 16.45 (3.23) 5.10 < 0.01
Role of the nurse −1.78 (0.53) −0.81 (0.51) 0.03 0.03 −1.59 0.46
Intershift recovery§ −0.09 (0.01) −0.06 (0.01) 0.20 0.23 −4.77 < 0.01
Physical health −0.27 (0.04) −0.16 (0.04) 0.08 0.31 −4.56 < 0.01
Sleep disturbance 0.21 (0.03) 0.10 (0.03) 0.03 0.34 2.84 0.02
Coworker support# −0.73 (0.13) −0.35 (0.13) 0.02 0.36 −2.68
0.03
Emotional fatigue
Variables Unadjusted
B (SE)
B (SE) R2 Cumulative
R2
t Bonferroni-adjusted p
(Constant) 1.66 (2.63) 0.63 > 0.99
Role of the nurse −0.81 (0.55) −0.16 (0.48) 0.01 0.01 −0.33 > 0.99
Intershift recovery§ −0.10 (0.01) −0.05 (0.01) 0.26 0.27 −4.65 < 0.01
Maladaptive coping‡‡ 0.46 (0.05) 0.29 (0.04) 0.14 0.40 6.43 < 0.01
Coworker support# −1.01 (0.13) −0.54 (0.12) 0.07 0.47 −4.46 < 0.01
Sleep disturbance†† 0.27 (0.03) 0.13 (0.03) 0.04 0.50 4.05
< 0.01
Mental fatigue
Variables Unadjusted
B (SE)
B (SE) R2
Cumulative
R2
t Bonferroni-adjusted p
(Constant) −2.14 (2.22) −0.97 > 0.99
Role of the nurse −0.39 (0.47) 1.42 (0.56) 0.00 0.00 2.51 0.05
Intershift recovery§ −0.09 (0.01) −0.06 (0.01) 0.23 0.23 −5.64 < 0.01
Maladaptive coping†† 0.31 (0.04) 0.19 (0.04) 0.08 0.31 4.16 < 0.01
Long shifts (11+ hours) 1.40 (0.55) 2.04 (0.66) 0.03 0.35 3.09 0.01
Sleep disturbance 0.18 (0.03) 0.07 (0.03) 0.01 0.36 2.17 0.12
Years nursing practice −0.08 (0.02) −0.05 (0.02) 0.01 0.37 −2.13 0.14
Total fatigue
Variables Unadjusted
B (SE)
B (SE) R2 Cumulative
R2
t p
(Constant) 4.31 (9.94) 0.43 0.67
Role of the nurse −6.90 (2.25) −2.89 (1.80) 0.02 0.02 −1.60 0.11
Intershift recovery§ −0.53 (0.04) −0.35 (0.04) 0.41 0.43 −8.32 < 0.01
Sleep disturbance 1.26 (0.13) 0.60 (0.12) 0.10 0.53 5.02 < 0.01
Maladaptive coping†† 1.69 (0.20) 0.78 (0.17) 0.04 0.57 4.62 < 0.01
Coworker support# −3.88 (0.53) −1.56 (0.46) 0.02 0.59 −3.42 < 0.01
Double duty caregiver‡‡ 7.76 (2.26) 3.76 (1.76) 0.01 0.59 2.13 0.03
Chronic fatigue§
Variables Unadjusted B (SE) B (SE) R2 Cumulative
R2
t p
(Constant) 45.29 (13.09) 3.46 < 0.01
Role of the nurse −8.04 (3.39) 1.87 (2.59) 0.01 0.01 0.72 0.47
Intershift recovery§ −0.69 (0.06) −0.34 (0.06) 0.32 0.33 −5.85 < 0.01
Coworker support# −7.26 (0.71) −3.01 (0.71) 0.12 0.45 −4.25 < 0.01
Maladaptive coping†† 2.39 (0.29) 1.42 (0.23) 0.08 0.53 6.13 < 0.01
Psychologic job demands# 2.10 (0.25) 1.41 (0.22) 0.06 0.59 6.57 < 0.01
Decision latitude# −0.83 (0.13) −0.50 (0.12) 0.03 0.62 −4.25 < 0.01

Abbreviation: B, unstandardized coefficient; SE, standard error

Assessed using the Multidimensional Fatigue Symptom Inventory-Short Form (MFSI-SF).

Role coded 0 = direct care RN, 1 = non-direct care RN.

§

Assessed using the Occupational Fatigue Exhaustion Recovery (OFER).

Assessed using Patient Reported Outcome Measurement Information System (PROMIS).

#

Assessed using the Job Content Questionnaire (JCQ).

††

Assessed using the Brief Coping Orientation to Problems Experienced (COPE).

‡‡

double duty caregiver = providing unpaid care for a dependent child or adult. Coded 0 = not double duty caregiver, 1 = double duty caregiver