Fig. 2
From: Cerebrospinal fluid levels of neopterin are elevated in delirium after hip fracture
Neopterin levels in CSF (a) and serum (b) in hip fracture patients stratified regarding acute (delirium) and chronic cognitive impairment (neither: n = 56, chronic cognitive impairment only = 10, delirium only = 24, both = 40) p = 0.05 for CSF and p = 0.01 for serum (Kruskal-Wallis tests). The horizontal lines represent the median. Three patients (one with ‘neither’ and two with ‘delirium only’) had CSF neopterin above the upper margin of this figure. The Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) cutoff of 3.44 was used as an indicator of chronic cognitive impairment (missing in five patients)