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Table 1 Baseline characteristics of the participants

From: Physical function and lean body mass as predictors of bone loss after hip fracture: a prospective follow-up study

 nMean (SD) or n (%)
Age, years8180.0 (7.1)
Women, n (%)8163 (78)
Height, cm80 161 (9)
Weight, kg8165.8 (11.5)
Body mass index, kg/m28025.5 (3.8)
Body fat, %7631.3 (6.5)
Lean body mass, kg7644.5 (8.4)
Smoking, n (%)81 
 Never 64 (79)
 Former 10 (12)
 Current 7 (9)
Number of chronic diseases813 (2)
Current bisphosphonate use, n (%)8116 (20)
Serum-25OHD, nmol/L6855 (23)
Serum-PTH, ng/L6849 (23)
Time since fracture (days)8170 (28)
Site of fracture, n (%)81 
 Femoral neck 52 (64)
 Pertrochanteric 29 (36)
Type of surgery, n (%)81 
 Internal fixation 38 (47)
 Hemiarthroplasty 33 (41)
 Total arthroplasty 10 (12)
Physical function  
 SPPB score (range, 0–12)816.2 (2.4)
 SPPB score < 7, n (%) 42 (52)
 Walking outdoors, n (%)81 
  No difficulties 12 (15)
  Some difficulties 38 (47)
  Great deal of difficulties 13 (16)
  Manage only with help 17 (21)
  Unable to manage even with help 1 (1)
Distal tibia
 vBMDTOT_fractured leg (mg/cm3)76215 (52)
 BSIfractured leg (g2/cm4)760.50 (0.25)
 vBMDTOT_non-fractured leg (mg/cm3)78218 (52)
 BSInon-fractured leg (g2/cm4)780.51 (0.25)
Tibial midshaft
 vBMDCO_fractured leg (mg/cm3)781043 (71)
 SSI_fractured leg (mm3)781493 (453)
 vBMDCO_non-fractured leg (mg/cm3)781045 (78)
 SSI_non-fractured leg (mm3)781516 (450)
  1. SPPB Short Physical Performance Battery, vBMDTOT Total volumetric bone mineral density, BSI Compressive bone strength index, vBMDCO Cortical vBMD, SSI Strength-strain index