Table 1 Pairwise comparisons with means ( SD; range ) between the two intervention groups at the different measurement points

Handwashing

Time 1

6.22 (1.99;3–11)

6.21 (1.56;3–11)

>.05

-

Time 2

7.25 (1.91;3–16)

8.68 (1.74;4–13)

<.001

-

Time 3

9.30 (2.36;3–14)

9.06 (2.72;3–15)

>.05

Intention

Time 1

2.02 (0.86;1–4)

1.95 (0.67;1–3.50)

>.05

-

Time 2

2.86 (0.66;1–4)

2.65 (0.84;1–4)

=.06

-

Time 3

2.59 (0.84;1–4)

3.18 (0.63;1–4)

<.001

Self-efficacy

Time 1

2.24 (0.65;1–4)

2.22 (0.37;1–3.33)

>.05

-

Time 2

2.59 (0.42;1–4)

3.02 (0.58;1.33-4)

<.001

-

Time 3

3.07 (0.59;1–4)

3.16 (0.53;1.67-4)

>.05

Planning

Time 1

1.92 (0.62;1–3.33)

1.84 (0.31;1–2.67)

>.05

-

Time 2

1.83 (0.48;1–3.50)

2.79 (0.62;1–4)

<.001

-

Time 3

2.94 (0.59;1–4)

2.75 (0.63;1–3.83)

<.05