Table 3: Generalised equation estimation (GEE) model for DRS items 1–13 for different lengths of delirium episodes until recovery (count of days). included observations.

SE

df

Wald

95% CI

DRS-R-98 item 6 Thought process abnormalities

1

1.558

0.21

DRS-R-98 item 9 Orientation

1

0.456

0.50

DRS-R-98 item 10 Attention

1

0.343

0.56

DRS-R-98 item 11 Short-term memory

1

0.012

0.91

DRS-R-98 item 12 Long-term memory

1

4.044

0.04

DRS-R-98 item 13 Visuospatial impairment

1

0.580

0.45

Constant

1.21

0.11

1

119.487

0.99, 1.42

0.000

SE: standard error, C.I.: confidence interval, with a minus sign signals the number of places the decimal point has to be moved to the left.