32 Chapter 2 Table 3 Demographical-, organizational- and clinical characteristics of patients. Variable All patients (n=2000) Patient characteristics Age at ED visit, mean ± SD 78 ± 6.2 Sex, n (%) Men 1048 (52) Women 952 (48) Presence of (signs of) cognitive impairment, n (%) 346 (17) Polypharmacy, n (%) 1310 (66) CACI, mean ± SD 5.6 ± 2.1 Organizational factors Day of presentation, n (%) Monday through Friday 1536 (77) Saturday and Sunday 464 (23) Time of presentation, n (%) Night (00.00 - 6.59) 138 (6.9) Morning (7.00 - 11.59) 406 (20) Afternoon (12.00 - 17.59) 980 (49) Evening (18.00 - 23.59) 476 (24) Number of consultations per patient, mean ± SD 0.47 ± 0.74 Number of diagnostic interventions per patient, mean ± SD 2.2 ± 1.4 Number of therapeutic interventions per patient, mean ± SD 0.96 ± 0.33 Mode of presentation, n (%) General practitioner 760 (38) Specialist of our institution 561 (28) Emergency call 447 (22) Self-referral 157 (7.9) Other hospital 75 (3.8) Method of transport, n (%) Self-transport 1171 (59) Ambulance 782 (39) HEMS 33 (1.7) Other 14 (0.70) Seniority of physician, n (%) Resident 1678 (84) Attending specialist 322 (16) Assigned urgency, n (%) U0 101 (5.1) U1 - U2 876 (44)
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