Table 3.

Effects of office design and access to telework from home on self-certified sickness absence. [OR=odd ratio; CI=confidence interval; IRR=incidence rate ratio; TWFH=telework from home.] Statistically significant coefficients in bold.

	Model 1 a		Model 2 b		Model 3 b
	OR (95% CI)	IRR (95% CI)	OR (95% CI)	IRR (95% CI)	OR (95% CI)	IRR (95% CI)
Zero hurdle model
Conventional shared-room office c	1.36(1.16–1.61)		1.06 (0.88–1.27)		0.96 (0.72–1.28)
Conventional open-plan office c	1.78 (1.54–2.06)		1.32 (1.13–1.54)		0.91 (0.68–1.23)
Non-territorial office c	1.51 (1.21–1.88)		1.14 (0.90–1.44)		1.08 (0.76–1.52)
Access to telework from home	0.83 (0.73–0.94)		0.86 (0.74–0.99)		0.74 (0.60–0.91)
Conventional shared-room office × access to TWFH					1.14 (0.80–1.63)
Conventional open-plan office × access to TWFH					1.63 (1.16–2.30)
Non-territorial office × access to TWFH					1.04 (0.65–1.65)
Count data model
Conventional shared-room office c		1.25 (1.06–1.48)		1.05 0.88–1.25)		0.97 (0.74–1.26)
Conventional open-plan office c		1.15 (0.99–1.33)		1.02 (0.88–1.17)		1.17 (0.90–1.53)
Non-territorial office c		1.37 (1.11–1.69)		1.17 (0.95–1.44)		1.15 (0.85–1.54)
Access to TWFH		0.91 (0.80–1.04)		1.01 (0.89–1.15)		1.03 (0.84–1.26)
Conventional shared-room office × access to TWFH						1.16 (0.83–1.61)
Conventional open-plan office × access to TWFH						0.82 (0.60–1.12)
Non-territorial office × access to TWFH						1.05 (0.69–1.59)

^aCrude, unadjusted, model.

^bModel adjusted for age, gender, education level, leadership responsibility, and time spent on office work.

^cReference category = private office.