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Table 1 Comparative demographic characteristics of patients with hip fracture surgery between aged and advanced age groups

From: In-hospital mortality does not increase in patients aged over 85 years after hip fracture surgery. A retrospective observational study in a Japanese tertiary hospital

  Aged group (75 ≤ age < 85) Advanced age group (85 ≤ age) p value
n = 360 n = 444
Age (years) 80.4 ± 2.8 89.4 ± 3.5 0.000
Gender female 281 (78.1) 387 (87.2) 0.001
Locations of the fracture    0.008
 Intra-capsular 157 (43.6) 161 (36.3)  
 Extra-capsular 186 (51.7) 273 (61.5)  
 others 17 (4.7) 10 (2.3)  
ASA-PS score    0.168
 I or II 228 (58.6) 260 (63.3)  
 III, IV, V 132 (41.4) 184 (36.7)  
Types of anesthesia    0.000
 A 105 (29.2) 100 (22.5)  
 B 134 (37.2) 98 (22.1)  
 C 121 (33.6) 246 (55.4)  
Anesthesia duration (minutes) 110 ± 42 97 ± 33 0.001
Surgery duration (minutes) 61 ± 33 53 ± 24 0.001
LOS after surgery (days) 26.4 ± 18.7 22.4 ± 15.8 0.078
  1. The data are given as number (%) or the mean ± S.D.
  2. ASA-PS American Society of Anesthesiology physical status, A general anesthesia, B general anesthesia combined with neuraxial or regional block, C spinal anesthesia, LOS length of hospital stay