Development and reliability testing of a self-report instrument to measure the office layout as a correlate of occupational sitting

Table 2 Relationships between refined OFFESS scales, duration and frequency of breaks in occupational sitting in the phase one sample

	Scale
	Local connectivity	Overall connectivity	Co-worker visibility	Co-worker proximity
	b(95% CI)	b(95% CI)	b(95% CI)	b(95% CI)
Occupational Sitting (mins /day)
Total Sample¹	0.45 (−21.73- 22.63)	−10.03 (−30.71- 10.65)	−6.87 (−26.97- 13.24)	23.26 (4.08-42.45)*
Office Type
Private Enclosed Office (n = 70)²	−20.66 (−76.30- 34.78)	54.25 (8.84- 99.66)*	−35.82 (−85.36- 13.72)	26.25 (−20.14- 72.64)
Shared Office (n = 59)²	−41.06 (−107.08- 24.95)	−17.34 (−77.85- 43.16)	20.14 (−26.62- 66.89)	21.03 (−28.30- 70.36)
Open Plan Office (n = 172)²	4.67 (−21.00- 30.32)	−27.80 (−53.10- -2.50)*	−2.67 (−27.34- 22.00)	28.91 (6.22- 51.60)*
Breaks in Sitting (times /day)
Total Sample³	−0.02 (−0.08- 0.034)	−0.11 (−0.17- -0.06)*	0.15 (0.09- 0.20)*	0.02 (−0.03- 0.07)
Office Type
Private Enclosed Office (n = 70)⁴	0.47 (0.34- 0.60)*	−0.34 (−0.45- -0.23)*	−0.19 (−0.21- -0.08)*	0.15 (0.04- 0.26)*
Shared Office (n = 59)⁴	0.28 (0.09- 0.47)*	−0.19 (−0.35- -0.02)*	0.10 (−0.03- 0.23)	0.02 (−0.11- 0.15)
Open Plan Office (n = 172)⁴	−0.22 (−0.29- -0.15)*	−0.03 (−0.10- 0.05)	0.30 (0.22- 0.37)*	0.01 (−0.05- 0.08)

Notes: *p = <0.05. 1. Covariates included in the analysis – gender, occupational category, autonomy, BMI, age, and office type. 2. Covariates included in the analysis – gender, occupational category, autonomy, BMI, and age. 3. Covariates included in the analysis – gender, occupational category, autonomy, BMI, age, office type, and duration of occupational sitting. 4. Covariates included in the analysis – gender, occupational category, autonomy, BMI, age, and duration of occupational sitting.

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