Prevalence, risk factors and quality of life impact of work-related musculoskeletal disorders among school teachers in Cairo, Egypt

Table 1 Comparison between teachers with and without WRMSDs as regards their sociodemographic and self-reported physical characteristics

		All Teachers (N = 310)		Without WRMSDs (N = 103)		With WRMSDs (N = 207)		Statistical Test	P- value	PR (95% CI)
		No	%	No	%	No	%	Statistical Test	P- value	PR (95% CI)
Age in years	27 – 35	25	8.1	9	36	16	64	χ² = 0.55	0.46
	36 – 40	27	8.7	8	29.6	19	70.4
	41 – 45	75	24.2	19	25.3	56	74.7
	46 – 50	183	59	67	36.6	116	63.4
			Mean ± SD					t-test = 0.37	0.71
		45.2 ± 5.1		45.3 ± 5.4		45.1 ± 5		t-test = 0.37	0.71
Gender	Male	105	33.9	65	61.9	40	38.1	χ² = 58.9	˂0.001	2.14 (1.67 – 2.75)
Gender	Female	205	66.1	38	18.5	167	81.5	χ² = 58.9	˂0.001	2.14 (1.67 – 2.75)
Marital Status	Single	22	7.1	10	45.5	12	54.5	χ² = 3.75	0.29
	Married	273	88.1	88	32.2	185	67.8
	Widow	7	2.3	1	14.3	6	85.7
	Divorced	8	2.6	4	50	4	50
Body Mass Index	Underweight	1	0.3	0	0	1	100	χ² = 8.99	0.003	1.33 (1.04 – 1.7)
	Normal	53	17.1	23	43.4	30	56.6
	Overweight	105	33.9	44	41.9	61	58.1
	Obese	151	48.7	36	23.8	115	76.2
		Mean ± SD						t-test = -2.61	0.009
		30.5 ± 6.1		29.28 ± 5.2		31.17 ± 6.37		t-test = -2.61	0.009

^{Boldface values indicate statistical significance (}^{P < 0.05)}
^χ^{2 Chi square test, PR Prevalence ratio, CI Confidence interval, SD Standard Deviation}

ISSN: 1471-2458