Skip to main content

Table 1 Baseline characteristics of 246 orthopaedic trauma patients eligible for a limited laboratory assessment protocol

From: Reducing routine laboratory tests in patients with isolated extremity fractures: a prospective safety and feasibility study in 246 patients

Parameter All, n (%) (n = 246) Protocol Group, n (%) (n = 201) Non-Protocol Group, n (%) P Value
Provider Error (n = 24) Medically Excluded (n = 21)
Baseline demographic data
Age, yr 47 ± 18a 46 ± 18a 42 ± 16a 63 ± 16a 0.0001
Female sex 117 (48) 97 (48) 6 (25) 13 (62) 0.04
ASA Scoreb 2.2 ± 0.6a 2.1 ± 0.6a 2.0 ± 0.7a 2.8 ± 0.5a < 0.0001
BMI, kg/m2 29 ± 7.9a 28 ± 7.6a 28 ± 6.6a 32 ± 12a 0.15
Injury characteristics
Open injury 38 (15) 32 (16) 4 (17) 2 (9.5) 0.73
Fracture location      0.21
 Humerus 16 (6.5) 14 (7.0) 1 (4.2) 1 (4.8)
 Ulna/radius 36 (15) 28 (14) 3 (13) 5 (24)
 Patella 12 (4.9) 9 (4.5) 3 (13) 0 (0)
 Tibia     
  Plateau 34 (14) 24 (12) 5 (21) 5 (24)
  Shaft 49 (20) 41 (20) 5 (21) 3 (14)
  Pilon 25 (10) 21 (10) 2 (8.3) 2 (9.5)
 Ankle 50 (20) 43 (21) 2 (8.3) 5 (24)
 Foot 24 (9.8) 21 (10) 3 (13) 0 (0)
Fracture treatment modality
 ORIF 159 (65) 128 (64) 17 (71) 14 (67) 0.21
 Intramedullary nail 40 (16) 33 (16) 5 (21) 2 (9.5)
 External fixation 31 (13) 27 (13) 1 (4.2) 3 (14)
 Arthroplasty 5 (2.0) 2 (1.0) 1 (4.2) 2 (9.5)
 Splint application 7 (2.8) 7 (3.5) 0 (0) 0 (0)
 Removal of instrumentation 4 (1.6) 4 (2.0) 0 (0) 0 (0)
  1. Abbreviations: ASA American Society of Anesthesiologists, BMI body mass index, ORIF open reduction and internal fixation
  2. aData presented as mean ± standard deviation
  3. bASA Score: A global assessment of a patient’s physical status made by the anesthesiologist before surgery. Ratings are from ASA I to ASA VI, where I is normal, II has mild systemic disease, III has severe systemic disease, IV has severe systemic disease that is a constant threat to life, V is a moribund patient not expected to survive the operation, and VI is a brain-dead patient awaiting organ harvest