TABLE 5.

Longitudinal univariate and multivariate analyses for ESBL carriage in pig farmers, family members and employees

Determinant	No.a or mean	Univariate or CI	Multivariate or CI
Presence of ESBL in pigs
Yes	159	8.9 (2.9–27.4)	8.7 (3.0–25.6)
No	362	Ref.b	Ref.
Avg no. of hours working on pig farm per wk (per h)	24 ± 24	1.04 (1.01–1.06)	1.04 (1.01–1.06)
Per 10 h		1.4 (1.1–1.7)	1.4 (1.2–1.7)
Age (per yr)	36 ± 17	1.04 (1.01–1.07)
Per 10 yrs		1.45 (1.05–1.99)
Gender
Male	302	5.3 (1.4–19.9)
Female	219	Ref.
Smoking
Yes	37	1.5 (0.2–12.9)
No	473	Ref.

^aBased on total number of observations.

^bRef., reference category.