. 2022 Jun 7;133(3):1378–1391. doi: 10.1111/jam.15621

TABLE 2.

Extracted results from partial least squares regression models connecting consumers' usage habits, cleaning and storage habits, socio‐demographics, utensil condition and experimental settings with measures of total bacteria (TVC log) and Salmonella counts in sponges and brushes collected from consumers, before and after Salmonella addition and incubation. See Table S2 for the full models.

Treatment	Sponges (N = 102)						Brushes (N = 40)
Treatment	No incubation		Incubated with Salmonella				No incubation		Incubated with Salmonella
Predicted variable	TVC log (N = 43)		TVC log (N = 58)		Salmonella (N = 54)		TVC log (N = 15)		TVC log (N = 25)		Salmonella (N = 25)
Independent variables ^a	Weighted B‐coefficient	p‐value	Weighted B‐coefficient	p‐value	Weighted B‐coefficient	p‐value	Weighted B‐coefficient	p‐value	Weighted B‐coefficient	p‐value	Weighted B‐coefficient	p‐value
Usage habits
Change_worn/old	0.016	0.831	−0.133	0.252	−0.124	0.038^*	−0.001	0.985	0.044	0.605	−0.082	0.375
Last changed	0.058	0.300	0.113	0.371	0.113	0.064	0.142	0.149	0.069	0.038^*	0.098	0.126
WashUp_running water	0.044	0.508	−0.072	0.494	−0.124	0.028^*	−0.069	0.312	−0.043	0.153	−0.029	0.655
Cleaning and storage habits
Clean_chlorine	0.063	0.088	0.225	0.023^*	−0.082	0.331	0.061	0.361	−0.148	0.125	−0.144	0.034^*
Clean_dishwasher	0.032	0.264	−0.171	0.039^*	0.107	0.176	0.006	0.939	0.072	0.304	0.061	0.563
Clean_soap	0.048	0.281	0.127	0.336	0.014	0.812	−0.190	0.022^*	−0.053	0.476	−0.021	0.792
Sink	0.015	0.598	0.103	0.500	0.105	0.013^*	0.066	0.343	0.058	0.107	0.030	0.719
Utensil dries	−0.077	0.107	−0.338	0.004^**	0.065	0.346	−0.176	0.119	0.029	0.424	−0.044	0.672
Socio‐demographics
Norway	−0.144	0.003^**	NA ^b	NA	NA	NA	NA	NA	NA	NA	NA	NA
Portugal	0.144	0.003^**	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Young > 18 years	0.033	0.361	−0.093	0.341	0.024	0.683	NA	NA	0.100	0.003^**	0.056	0.500
Utensil condition
New	−0.098	0.093	−0.073	0.323	0.003	0.966	−0.141	0.044^*	NA	NA	NA	NA
Worn	0.098	0.093	0.073	0.323	−0.003	0.966	0.141	0.044^*	NA	NA	NA	NA
Experimental settings
Air	NA	NA	−0.029	0.610	−0.135	0.054	NA	NA	−0.093	0.010^*	−0.280	0.001^***
Bag	NA	NA	0.029	0.610	0.135	0.054	NA	NA	0.093	0.010^*	0.280	0.001^***
Control utensil	NA	NA	−0.354	0.015^*	0.077	0.068	NA	NA	−0.135	0.039^*	−0.085	0.181

^{^a}

The following independent variables are not reported in this table (p > 0.05 in all models); Usage habits: Usage frequency, change_dirty, change_schedule, cleaning and storage habits: washup_sink filled with water, container, countertop, hanging, socio‐demographics: child/teen uses, child<12 year, child 13–17 years, microbiologist, pet, utensil condition: clean, dirty, dry, humid, experimental settings: antibacterial (silver) (Table S2).

^{^b}

Not applicable.

p‐value <0.05

^**

p‐value <0.01

^***

p‐value <0.001.