Skip to main content

Advertisement

Table 5 Comparison of clinical characteristics between the SAS value ≤ 6 and SAS value ≥ 7 patients

From: The Surgical Apgar Score can help predict postoperative complications in femoral neck fracture patients: a 6-year retrospective cohort study

  SAS value ≤ 6 (N = 97) SAS value ≥ 7 (N = 409) p value
Age (year) 87 ± 6 (71–102) 87 ± 6 (70–100) 0.480
Male 14 (14.4) 80 (19.6) 0.243
Body mass index 20.2 ± 3.3 (14.2–30.8) 20.5 ± 3.2 (13.7–32.0) 0.596
Comorbidities
 Hypertension 50 (51.5) 233 (57.0) 0.334
 Old cerebral infarction 16 (16.5) 47 (11.5) 0.180
 Chronic heart failure 9 (9.3) 52 (12.7) 0.350
 Diabetes mellitus 7 (7.2) 51 (12.5) 0.144
 Chronic renal failure 1 (1.0) 20 (4.9) 0.087
 Chronic obstructive pulmonary disease 9 (9.3) 11 (2.7) < 0.001
 Rheumatoid arthritis 2 (2.1) 16 (3.9) 0.376
 Old myocardial infarction 3 (3.1) 12 (2.9) 0.934
 Insertion of cardiac pacemaker 2 (2.1) 7 (1.7) 0.814
Hemoglobin (g/dl) 11.2 ± 1.9 (6.6–15.6) 11.1 ± 1.8 (6.1–16.8) 0.380
C-reactive protein (mg/dl) 2.8 ± 4.1 (0.0–24.3) 2.6 ± 3.4 (0.0–22.2) 0.740
Albumin concentration (g/dl) 3.6 ± 0.5 (2.1–4.5) 3.5 ± 0.5 (2.3–4.6) 0.316
Sodium concentration (mEq/L) 139 ± 4 (120–162) 139 ± 4 (125–147) 0.790
Blood urea nitrogen/creatinine ratio 26.1 ± 6.7 (13.3–52.9) 26.9 ± 9.5 (7.8–83.2) 0.937
ASA classification ≥ 3 48 (49.4%) 201 (49.1%) 0.952
Ejection Fraction (%) 65 ± 9 (46–89) 64 ± 9 (39–88) 0.529
Moderate to severe valvular disease 15 (15.5) 76 (18.6) 0.472
PaO2 (mmHg) 77 ± 11 (51–98) 75 ± 12 (45–104) 0.275
Dementia 47 (48.4) 197 (48.2) 0.959
Waiting period for surgery(day) 9.1 ± 3.6(2–19) 9.0 ± 3.3(2–20) 0.744
Preoperative fever (≥ 38°) 23 (23.7) 128 (31.3) 0.142
General anesthesia 74 (76.3) 302 (73.8) 0.620
Spinal anesthesia 23 (23.7) 107 (26.2)
Hip hemiarthroplasty 24 (24.7) 77 (18.8) 0.190
Osteosynthesis 73 (75.3) 332 (81.6)
Operation time (min) 53 ± 30 (16–190) 46 ± 24 (13–167) 0.031
  1. The data are given as patient’s number (%) or the mean ± standard deviation (range)
  2. PaO2 partial pressure of oxygen in arterial blood