Table 2

Descriptive statistics for the outcome measures: barriers for implementation, behavioural determinants and behaviour

VariableScaleBaseline3 months6 months
Control (n=773)Intervention (n=876)Control (n=536)Intervention (n=651)Control (n=471)Intervention (n=607)
Barriers for implementation
 Awareness ((totally) agree), n (%)91 (12.2)98 (11.5)48 (12.5)127 (27.6)
 Receiving information (yes), n (%)183 (24.5)262 (30.6)152 (39.6)353 (76.7)
 Knowledge, mean (SD)0–75.0 (1.2)5.1 (1.2)5.3 (1.3)6.2 (1.0)
Behavioural determinants
 Attitude: Important to protect hands ((totally) agree), n (%)691 (90.9)804 (92.9)351 (90.9)426 (92.0)
 Attitude: Content with protective measures ((totally) agree), n (%)494 (65.2)595 (68.8)283 (73.5)358 (77.3)
 Social influence, mean (SD)1.0–5.02.5 (1.0)2.5 (1.0)2.5 (1.0)2.5 (0.9)
 Self-efficacy, mean (SD)1.0–5.03.5 (0.9)3.5 (0.9)3.6 (0.9)3.7 (0.8)
 Intention, mean (SD)1.0–5.03.9 (0.8)3.9 (0.8)3.9 (0.9)4.0 (0.7)
Behaviour
 Washing hands, mean (SD)1–42.5 (1.0)2.3 (1.0)2.4 (0.9)1.9 (0.8)2.5 (0.9)2.0 (0.9)
 Use of disinfectant, mean (SD)1–42.6 (1.1)2.7 (1.1)2.6 (1.1)2.6 (1.1)2.6 (1.1)2.7 (1.1)
 Wet work, mean (SD)1–42.8 (0.9)2.6 (0.9)2.8 (0.8)2.6 (0.8)
 Use of moisturiser, mean (SD)0–20.9 (0.7)0.9 (0.7)0.8 (0.7)1.0 (0.7)0.9 (0.7)1.1 (0.7)
 Wearing gloves (hours/day), mean (SD)2.3 (1.9)2.2 (1.8)2.2 (1.7)1.9 (1.6)2.3 (1.8)2.0 (1.7)
 Use of body lotion (no, never), n (%)636 (85.8)765 (89.8)489 (92.1)607 (94.0)406 (88.3)555 (93.4)
 Wearing jewellery (no, never), n (%)526 (85.8)706 (83.7)480 (90.4)551 (85.3)420 (91.5)503 (84.7)
 Wearing cotton under gloves (once in a while/daily), n (%)19 (2.6)16 (1.9)10 (1.9)13 (2.0)14 (3.0)53 (8.8)
 Compliance to guideline, mean (SD)0–53.4 (0.8)3.4 (0.7)3.5 (0.7)3.6 (0.6)