Table 3.

Estimated adjusted prevalence ratio (PR) of exposure to the three work-related exposure factors in each sub-group of key workers, compared to non-key workers (stratified models).

	Exposure to Infectious Agents		Face-to-Face Contact with the Public		Working with Colleagues
	% Exposed	Adjusted PR b (95% CI)	% Exposed	Adjusted PR b (95% CI)	% Exposed	Adjusted PR b (95% CI)
Non-key workers	25.3 (24.8–25.9)	Ref	58.4 (57.8–59.0)	Ref	41.4 (40.8–42.0)	Ref
Hospital HCW a	89.9 (88.5–91.4)	3.5 (3.3–3.7)	95.0 (94.0–96.0)	1.5 (1.5–1.6)	62.9 (60.7–65.2)	1.6 (1.5–1.7)
Non-Hospital HCW a	75.0 (72.7–77.2)	2.9 (2.7–3.1)	91.4 (89.9–92.9)	1.5 (1.4–1.6)	19.5 (17.4–21.6)	0.5 (0.4–0.6)
Essential Non HCW a	34.7 (33.3–36.2)	1.4 (1.2–1.5)	72.2 (70.8–73.6)	1.2 (1.2–1.3)	37.7 (36.2–39.2)	0.9 (0.8–1.0)
All key workers	55.9 (54.7–57.0)	2.1 (2.0–2.3)	81.4 (80.5–82.3)	1.4 (1.3–1.4)	40.3 (39.2–41.5)	1.0 (0.9–1.1)
All active population	31.9 (31.4–32.4)		63.3 (62.8–63.8)		41.2 (40.6–41.7)

^a HCW: Healthcare workers. ^b Adjusted for gender, age, and geographical origin.