Work-related musculoskeletal symptoms among Iranian nurses and their relationship with fatigue: a cross-sectional study

Table 5 Associations between WMSs in different body regions of the participants and total fatigue and the fatigue subscales (N = 500)

P-MAF subscale	Independent variable	Beta	95% CI	p^a
Degree and severity	Age	1.89	1.31–2.71	< 0.001
	Female gender	2.16	1.55–2.78	< 0.001
	Shoulders symptoms	1.90	1.05–2.37	< 0.001
	Upper back symptoms	2.03	1.21–2.65	< 0.001
	Lower back symptoms	2.11	1.31–2.75	0.009
Distress that it causes	Age	1.78	1.14–2.17	0.009
	Female gender	1.97	1.17–2.33	< 0.001
	Neck symptoms	2.14	1.11–2.66	0.001
	Shoulders symptoms	2.01	1.23–2.41	0.029
	Lower back symptoms	2.09	1.27–2.77	0.027
Degree of interference with activities of daily living	Age	2.12	1.35–2.83	0.006
	Female gender	2.18	1.26–2.79	< 0.001
	Marital status (married)	1.54	1.05–1.96	< 0.001
	Elbows symptoms	2.12	1.33–2.71	0.004
	Upper back symptoms	2.31	1.44–2.95	0.011
Timing of fatigue	Age	1.76	1.13–2.27	0.020
	Female gender	2.16	1.19–2.87	< 0.001
	Shoulders symptoms	2.19	1.27–2.96	< 0.001
	Lower back symptoms	3.12	1.77–3.88	0.005
	Thighs symptoms	1.49	1.05–1.97	0.038
Total fatigue/Global Fatigue Index	Age	2.34	1.52–2.98	0.025
	Female gender	2.45	1.34–3.01	< 0.001
	Neck symptoms	2.66	1.45–3.25	0.046
	Shoulders symptoms	2.56	1.37–3.17	< 0.001
	Upper back symptoms	2.31	1.41–2.98	0.013
	Lower back symptoms	2.77	1.50–3.41	< 0.001

^a Multiple linear regression analysis of P-MAF subscales and WMSs during the prior week adjusted for age, BMI, job tenure, working hours per day, working hours per week, gender, marital status, smoking, shift work, and type of employment. Only the statistically significant correlations are presented
Note: p p-value, Multiple linear regression (r² = 0.49, p = 0.03)

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