Table 5 .

Mean daily usage of PIK in hours, as reported by the nurses on the four study wards who filled out both the second and third questionnaires*

	N	Second questionnaire	Third questionnaire
Ward A	6	0.7 ± 0.4 h†	1.0 ± 0.7 h
Ward B	14	—	1.9 ± 1.0 h
Ward C	9	1.4 ± 0.4 h	1.1 ± 0.3 h
Ward D	7	1.4 ± 1.6 h	1.3 ± 0.8 h

*Second = during introduction, third = after introduction of a computer-based nursing documentation system.

^†It should be mentioned that on ward A, during the second questionnaire, only half of the patients were documented with PIK (the others were paper-based), because of the randomized study design on this ward at this point of time.¹² To get a comparable number, the given figure should be approximately doubled.