Table 2.

Factors associated with the completeness of fluorescent alcohol-based handrubbing under ultraviolet-light (second year)

Variable	AHR Incomplete application (n = 127)	AHR Complete application (n = 115)	p-value	Hazard ratio	95% confidence interval	p’-value
	Univariate			Logistic regression
Age ± SD (years)	21 ± 1.7	21 ± 2.7	0.68	–	–	–
Female gender	59.1	69.6	0.08	1.86	1.02–3.37	0.041
Personal feedback with UV cabinet	44.1	73.0	< 0.001	3.84	2.09–7.06	< 0.001
New Hand hygiene formation	31.5	43.8	0.057	1.59	0.82–3.09	0.17
Extra-university use of UV cabinet	14.5	30.4	0.004	1.18	0.54–2.58	0.67
Infectious disease unit traineeship	19.4	16.1	0.51	–	–	–
Surgical unit traineeship	54.5	70.5	0.011	1.85	1.00–3.43	0.049
Intensive care unit traineeship	10.5	13.4	0.49	–	–	–
Care of a patient needing contact precautions	70.2	75.0	0.41	–	–	–
Care of a patient hospitalized for nosocomial infection	16.1	15.3	0.86	–	–	–
Familiarity with alcoholic solution for HH	75.0	82.1	0.17	1.44	0.73–2.86	0.29

Results are expressed as %, except Age as mean (±SD)

p-value: comparison by univariate test between the group with AHR Incomplete application versus the group with AHR Complete application

p’-value: p-value by the multivariate logistic regression

Completeness of AHR handrubbing:

-AHR incomplete application corresponds to the presence of one or more areas without fluorescence on the hands and wrists of the students under UV-light

-AHR complete application corresponds to the absence of areas without fluorescence on the hands and wrists of the students under UV-light

Variables concerning the personal experience with hand hygiene between the first and the second year were collected on the second year as a questionnaire format from each 3rd degree student (see Additional file 2)

Abbreviations: AHR: Alcohol-based handrub, SD: standard deviation; UV: Ultraviolet