BMC Musculoskeletal Disorders

Table 5 Associations between maximum bouts of static and dynamic standing at work (per 10 min) and change in LEPi during follow-up (Approach 2)

From: Associations of objectively measured total duration and maximum bout length of standing at work with lower-extremity pain intensity: a 2-year follow-up of construction and healthcare workers

		Static standing						Dynamic standing
		Model 1			Model 4			Model 1			Model 4
		Observations = 426/215/211			Observations = 412/212/200			Observations = 426/215/211			Observations = 412/212/200
		Coef.	95% CI	P-value	Coef.	95% CI	P-value	Coef.	95% CI	P-value	Coef.	95% CI	P-value
Total	T2	− 0.25	− 1.01,0.50	0.508	− 0.23	− 0.99,0.53	0.550	0.05	−0.35,0.45	0.810	0.02	−0.38,0.42	0.929
	T3	−0.09	−0.93,0.74	0.828	−0.16	−1.03,0.69	0.714	−0.10	− 0.65,0.45	0.725	− 0.12	−0.67,0.43	0.666
	T4	−0.31	−1.14,0.53	0.470	−0.46	−1.36,0.44	0.311	−0.09	−0.59,0.40	0.710	−0.17	− 0.67,0.33	0.510
	T5	−0.15	−1.00,0.70	0.729	−0.17	−1.03,0.70	0.697	−0.27	−0.86,0.31	0.357	−0.35	− 0.94,0.23	0.236
Construction	T2	−0.07	−1.06,0.93	0.895	−0.06	−1.05,0.94	0.911	0.24	−0.35,0.82	0.428	0.24	−0.34,0.83	0.414
	T3	0.36	−0.69,1.42	0.501	0.34	−0.71,1.40	0.526	0.32	−0.45,1.06	0.427	0.33	−0.44,1.09	0.404
	T4	0.42	−0.62,1.45	0.431	0.37	−0.77,1.52	0.525	−0.19	−1.03,0.64	0.650	−0.36	−1.26,0.53	0.427
	T5	0.29	−0.72,1.31	0.574	0.43	−0.62,1.48	0.426	−0.16	−0.95,0.63	0.690	−0.16	− 0.96,0.65	0.706
Healthcare	T2	−0.44	−1.53,0.66	0.436	−0.51	−1.66,0.64	0.384	−0.09	−0.64,0.47	0.762	−0.15	− 0.71,0.41	0.596
	T3	−0.62	−1.90,0.65	0.340	−0.82	−2.15,0.52	0.229	−0.43	−1.22,0.36	0.284	−0.46	−1.25,0.34	0.262
	T4	−1.06	− 2.36,0.24	0.110	−1.29	− 2.64,0.06	0.060	−0.11	− 0.75,0.53	0.731	− 0.19	− 0.85,0.47	0.574
	T5	−0.88	− 2.24,0.49	0.208	−1.10	−2.50,0.30	0.122	−0.35	−1.20,0.49	0.410	−0.47	−1.33,0.40	0.292

T2: 6 months, T3: 12 months, T4: 18 months, T5: 24 months; Observations: total observations included in models for total/construction/healthcare; P-values ≤0.05 in bold
Dependent variable: Change in pain between T1 and TX. Independent variables: Model 1: Maximum bout with static or dynamic standing at work (minutes per work day), Model 4: As model 1 + Age, Gender, BMI, Smoking, Heavy lifting, Kneeling, Social climate, Decision control, Fair leadership, Empowering leadership
Tables including all models (Model 2 and Model 3) are shown in supplementary Tables C and D

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ISSN: 1471-2474

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