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Table 1 Characteristics of patients surgically treated for non-pathological first hip fracture overall and by timing of mobilisation

From: Discharge after hip fracture surgery in relation to mobilisation timing by patient characteristics: linked secondary analysis of the UK National Hip Fracture Database

  All
(N = 133,319)
n(%)
early mobilisation
(N = 105,651)
n(%)
delayed mobilisation
(N = 27,668)
n(%)
Age (years)
median [IQR] e] *
  84 [77–89] 84 [77–89] 85 [79–90]
Sex* Female 97,001 (72.8) 77,299 (79.7) 19,702 (20.3)
Male 36,316 (27.2) 28,351 (78.1) 7965 (21.9)
Missing 2 (0.0) 1 (50.0) 1 (50.0)
Ethnicity* White 94,195 (70.7) 75,116 (79.7) 19,079 (20.3)
Caribbean or African (Black or Black British) or any mixed black background 221 (0.2) 145 (65.6) 76 (34.4)
Asian or Asian British or any mixed Asian background 1173 (0.9) 905 (77.2) 268 (22.8)
Any other Mixed background 24 (0.0) 18 (75.0) 6 (25.0)
Missing 37,706 (28.3) 29,467 (78.1) 8239 (21.9)
Deprivation* Least deprived 10% 9874 (7.4) 7735 (78.3) 2139 (21.7)
Less deprived 10–20% 9742 (7.3) 7546 (77.5) 2196 (22.5)
Less deprived 20–30% 10,579 (7.9) 8205 (77.6) 2374 (22.4)
Less deprived 30–40% 11,379 (8.5) 8864 (77.9) 2515 (22.1)
Less deprived 40–50% 11,954 (9.0) 9416 (78.8) 2538 (21.2)
More deprived 40–50% 12,616 (9.5) 9940 (78.8) 2676 (21.2)
More deprived 30–40% 12,400 (9.3) 9821 (79.2) 2579 (20.8)
More deprived 20–30% 12,035 (9.0) 9610 (79.9) 2425 (20.1)
More deprived 10–20% 11,929 (8.9) 9591 (80.4) 2338 (19.6)
Most deprived 10% 11,307 (8.5) 9138 (80.8) 2169 (19.2)
Missing 19,504 (14.6) 15,785 (80.9) 3719 (19.1)
Prefracture ambulation* Outdoor ambulation 100,983 (75.7) 82,919 (82.1) 18,064 (17.9)
Indoor ambulation only 30,834 (23.1) 21,663 (70.3) 9171 (29.7)
Missing 1502 (1.1) 1069 (71.2) 433 (28.8)
Fracture type* Intracapsular 78,830 (59.1) 63,022 (79.9) 15,808 (20.1)
Intertrochanteric 46,566 (34.9) 36,745 (78.9) 9821 (21.1)
Subtrochanteric 7864 (5.9) 5836 (74.2) 2028 (25.8)
Missing 59 (0.0) 48 (81.4) 11 (18.6)
Surgery timing* Within target time of 36 h 95,542 (71.7) 76,489 (80.1) 19,053 (19.9)
Not within target time 29,498 (22.1) 22,569 (76.5) 6929 (23.5)
Missing 8279 (6.2) 6593 (79.6) 1686 (20.4)
Procedure type* Internal fixation 64,845 (48.6) 51,500 (79.4) 13,345 (20.6)
Hemiarthroplasty 57,539 (43.2) 44,514 (77.4) 13,025 (22.6)
Total Hip replacement 10,393 (7.8) 9238 (88.9) 1155 (11.1)
Missing/Other 542 (0.4) 399 (73.6) 143 (26.4)
Calendar year of surgery* 2014 31,205 (23.4) 24,373 (78.1) 6832 (21.9)
2015 53,448 (40.1) 42,734 (80.0) 10,714 (20.0)
2016 48,666 (36.5) 38,544 (79.2) 10,122 (20.8)
Weekday of admission* Weekday 89,840 (67.4) 70,990 (79.0) 18,850 (21.0)
Weekend 41,357 (31.0) 33,156 (80.2) 8201 (19.8)
Missing 2122 (1.6) 1505 (70.9) 617 (29.1)
Hospital volume*c High volume 68,323 (51.2) 53,967 (79.0) 14,356 (21.0)
Medium volume 31,553 (23.7) 25,448 (80.7) 6105 (19.3)
Low volume 33,443 (25.1) 26,236 (78.4) 7207 (21.6)
ASA grade*b I 3101 (2.3) 2819 (90.9) 282 (9.1)
II 36,499 (27.4) 31,410 (86.1) 5089 (13.9)
III 73,694 (55.3) 57,483 (78.0) 16,211 (22.0)
IV 16,515 (12.4) 11,159 (67.6) 5356 (32.4)
V 275 (0.2) 162 (58.9) 113 (41.1)
Missing 3235 (2.4) 2618 (80.9) 617 (19.1)
Comorbidities*a Heart failure or pulmonary oedema 12,753 (9.6) 9056 (71.0) 3697 (29.0)
Chronic obstructive pulmonary 17,107 (12.8) 12,957 (75.7) 4150 (24.3)
Ischemic heart (acute) 11,369 (8.5) 8538 (75.1) 2831 (24.9)
Cardiac dysrhythmias 26,319 (19.7) 19,721 (74.9) 6598 (25.1)
Ischemic heart (chronic) 19,836 (14.9) 14,933 (75.3) 4903 (24.7)
Hypertension 64,673 (48.5) 51,252 (79.2) 13,421 (20.8)
Hypotension 10,123 (7.6) 7298 (72.1) 2825 (27.9)
Diabetes with complication 1627 (1.2) 1221 (75.0) 406 (25.0)
Alzheimer’s or dementia 34,253 (25.7) 24,810 (72.4) 9443 (27.6)
Depression 9490 (7.1) 7318 (77.1) 2172 (22.9)
Delirium 9818 (7.4) 7072 (72.0) 2746 (28.0)
Admitted from location* Own home/sheltered housing 107,144 (80.4) 87,365 (81.5) 19,779 (18.5)
Residential care 23,588 (17.7) 16,523 (70.0) 7065 (30.0)
Otherd 2567 (1.9) 1747 (68.1) 820 (31.9)
Missing 20 (0.0) 16 (80.0) 4 (20.0)
  1. * p ≤ 0.001
  2. a18,624 without comorbidity data. Comorbidities are identified by the presence of ICD-10 diagnosis codes from the hip fracture care spell, or any admissions in the year prior to the hip fracture care spell.
  3. bI – normal healthy individual; II – mild systemic disease that does not limit activity; III – severe systemic disease that limits activity but is not incapacitating; IV-incapacitating systemic disease which is constantly life-threatening; V-moribund -not expected to survive 24 h with or without surgery.
  4. clow (less than first quartile), medium (second and third quartile), or high (fourth quartile) volume at admission based on the average annual number of surgeries at the admitting hospital.
  5. dRehabilitation unit/acute hospital/already in hospital/this hospital site/other hospital site of this trust/other hospital trust.
  6. eIQR: the first and third quartiles respectively.