Table 1

Demographic and clinical characteristics of 174 192 patients with an acute admission to a department of medicine, by time of admission, Denmark, 2010

WeekdayWeekend
Office hours (8:00–16:59)Out of hours (17:00–7:59)Day (9:00–21:59)Night (22:00–8:59) plus Friday 22:00–23:59 and Monday 00:00–7:59
Overall87 764 (50.4%)43 312 (24.9%)29 140 (16.7%)13 976 (8.0%)
Age groups
 15–399291 (10.6)7246 (16.7)3960 (13.6)2528 (18.1)
 40–5919 888 (22.7)10 902 (25.2)6764 (23.2)3456 (24.7)
 60–7936 722 (41.8)15 794 (36.5)11 079 (38.0)5146 (36.8)
 80+21 863 (24.9)9370 (21.6)7337 (25.2)2846 (20.4)
 Age, median (years (IQR))68 (54–79)64 (47–78)67 (51–80)64 (46–77)
Gender
 Female45 877 (52.3)22 175 (51.2)15 073 (51.7)6880 (49.2)
 Male41 887 (47.7)211 375 (48.8)14 067 (48.3)7096 (50.8)
Charlson Comorbidity Index score
 049 384 (56.3)25 710 (59.4)16 647 (57.1)8055 (57.6)
 1–227 302 (31.1)12 687 (29.3)8996 (30.9)4267 (30.5)
 3+11 078 (12.6)4915 (11.4)3497 (12.0)1654 (11.8)
Presence of diseases included in the Charlson Comorbidity Index
 Myocardial infarction3246 (3.7)1658 (3.8)1117 (3.8)590 (4.2)
 Congestive heart failure5735 (6.5)2477 (5.7)1748 (6.0)913 (6.5)
 Peripheral vascular disease4683 (5.3)1926 (4.4)1388 (4.8)686 (4.9)
 Cerebrovascular disease8110 (9.2)4052 (9.3)2917 (10.0)1353 (9.8)
 Dementia1920 (2.2)1013 (2.3)769 (2.6)296 (2.1)
 Chronic pulmonary disease9934 (11.3)4758 (11.0)3296 (11.3)1691 (12.1)
 Connective tissue disease2977 (3.4)1181 (2.7)889 (3.1)386 (2.8)
 Ulcer disease2479 (2.8)1138 (2.6)778 (2.7)367 (2.6)
 Mild liver disease1435 (1.6)691 (1.6)451 (1.6)209 (1.5)
 Diabetes without end-organ damage7154 (8.2)3362 (7.8)2268 (7.8)1099 (7.9)
 Diabetes with end-organ damage4337 (4.9)2101 (4.9)1386 (4.8)675 (4.8)
 Hemiplegia313 (0.4)163 (0.4)106 (0.4)53 (0.4)
 Moderate to severe renal disease3036 (3.5)1289 (3.0)918 (3.2)432 (3.1)
 Non-metastatic solid tumour7555 (8.6)3157 (7.3)2393 (8.2)1032 (7.4)
 Leukaemia500 (0.6)193 (0.5)131 (0.5)56 (0.4)
 Lymphoma874 (1.0)354 (0.8)270 (0.9)107 (0.8)
 Moderate to severe liver disease511 (0.6)202 (0.5)159 (0.6)85 (0.6)
 Metastatic cancer1035 (1.2)373 (0.9)360 (1.2)140 (1.0)
 AIDS152 (0.2)85 (0.2)50 (0.2)23 (0.2)
Marital status
 Married40 881 (46.6)18 719 (43.2)12 794 (43.9)6358 (45.5)
 Never married14 140 (16.1)9206 (21.3)5364 (18.4)2981 (21.3)
 Divorced12 414 (14.1)6486 (15.0)4230 (14.5)2064 (14.8)
 Widowed20 325 (23.2)8904 (20.6)6751 (23.2)2573 (18.4)
 Unknown4010
Admission source
 Hospital outpatient specialist clinic5781 (6.6)2251 (5.2)1139 (3.9)541 (3.9)
 Emergency department13 225 (15.1)14 492 (33.5)8810 (30.2)4618 (33.0)
 Other69 438 (79.0)27 343 (63.1)19 610 (67.3)8997 (64.4)
Length of hospital stay (median (days))3 (1–7)2 (1–7)3 (1–7)3 (1–6)
Common medical conditions
 Pneumonia5886 (6.7)2797 (6.5)2197 (7.5)978 (7.0)
 Erysipelas991 (1.1)513 (1.2)367 (1.3)125 (0.9)
 Bacteraemia/sepsis1201 (1.4)759 (1.8)563 (1.9)238 (1.7)
 Urinary tract infection1944 (2.2)996 (2.3)740 (2.5)300 (2.2)
 Anaemia2384 (2.7)417 (1.0)266 (0.9)93 (0.7)
 Diabetes1540 (1.8)507 (1.2)326 (1.1)158 (1.1)
 Dehydration2073 (2.4)953 (2.2)697 (2.4)213 (1.5)
 Alcohol intoxication989 (1.1)994 (2.3)556 (1.9)388 (2.8)
 Transient ischaemic attack1380 (1.6)811 (1.9)609 (2.1)200 (1.4)
 Angina2191 (2.5)1000 (2.3)616 (2.1)408 (2.9)
 Acute myocardial infarction2274 (2.6)1317 (3.0)997 (3.4)694 (5.0)
 Atrial fibrillation3707 (4.2)1170 (2.7)889 (3.1)354 (2.5)
 Heart failure1645 (1.9)535 (1.2)300 (1.0)207 (1.5)
 Hypertension1173 (1.3)487 (1.1)329 (1.1)136 (1.0)
 Stroke3187 (3.6)1587 (3.7)1407 (4.8)515 (3.7)
 Chronic obstructive pulmonary disorder2869 (3.3)1273 (2.9)926 (3.2)545 (3.9)
 Respiratory failure1120 (1.3)559 (1.3)414 (1.4)224 (1.6)
 Gastroenteritis1179 (1.3)612 (1.4)466 (1.6)231 (1.7)
 Syncope1554 (1.8)1195 (2.8)865 (3.0)336 (2.4)
 Suspected acute myocardial infarction3719 (4.2)2304 (5.3)1455 (5.0)712 (5.1)
 Other44 758 (51.0)22 526 (52.0)14 155 (44.6)6921 (49.5)