Table 1

Items and item sets used to induce the classification models along with the percentages of missing values in our data set (n = 5,176 cases); the 19 Lachs and 22 Tinetti sub-scores are not listed separately

Item (set) name

Missing values in%


Age on admission

0.0


Sex (m/f)

0.0


Social status (35 sub-items concerning social contacts, activities, living, economic situation)

54.3


Barthel index sum score [12]

2.2


Lachs score (16 sub-items [13])

0.0-19.4


Timed 'Up & Go' test total time

58.8


Performance-Oriented Mobility Assessment (POMA) by Tinetti (22 sub-items [6])

31.7-68.5


Mini-Mental State Examination (MMSE) score on admission

53.2


Number of diagnoses on admission

0.7


Number of different medications on admission

1.0


Fall (yes/no)

0.0


Marschollek et al. BMC Medical Informatics and Decision Making 2012 12:19   doi:10.1186/1472-6947-12-19

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