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Table 1 Participant demographics with descriptive statistics

From: Associations of body mass index and diabetes with hip fracture risk: a nationwide cohort study

Variable Total % Non-diabetes Diabetes p-value BMI < 18.5 18.5BMI < 24 24  BMI < 27 27  BMI < 30 BMI30 p-value
N % N % N % N % N % N % N %
Total 22,048 100.00 18,540 84.09 3508 15.91   786 3.56 10,858 49.25 6474 29.36 2742 12.44 1188 5.39  
BMI < 0.001  
 BMI < 18.5 786 3.56 711 3.83 75 2.14             
 18.5  BMI < 24 10,858 49.25 9581 51.68 1277 36.40             
 24  BMI < 27 6474 29.36 5358 28.90 1116 31.81             
 27  BMI < 30 2742 12.44 2098 11.32 644 18.36             
 BMI30 1188 5.39 792 4.27 396 11.29             
Diabetes < 0.001
 No 18,540 84.09   711 90.46 9581 88.24 5358 82.76 2098 76.51 792 66.67  
 Yes 3508 15.91   75 9.54 1277 11.76 1116 17.24 644 23.49 396 33.33  
Hip Fracture < 0.001   < 0.001
 No 21,733 98.57 18,308 98.75 3425 97.63   758 96.44 10,689 98.44 6396 98.80 2712 98.91 1178 99.16  
 Yes 315 1.43 232 1.25 83 2.37   28 3.56 169 1.56 78 1.20 30 1.09 10 0.84  
Sex 0.036   < 0.001
 Male 10,908 49.47 9230 49.78 1678 47.83   312 39.69 4944 45.53 3607 55.72 1474 53.76 571 48.06  
 Female 11,140 50.53 9310 50.22 1830 52.17   474 60.31 5914 54.47 2867 44.28 1268 46.24 617 51.94  
Age < 0.001   < 0.001
 40–49 9015 40.89 8287 44.70 728 20.75   301 38.30 4728 43.54 2503 38.66 1039 37.89 444 37.37  
 50–59 6347 28.79 5177 27.92 1170 33.35   176 22.39 2877 26.50 2031 31.37 871 31.77 392 33.00  
 60–69 3616 16.40 2715 14.64 901 25.68   108 13.74 1652 15.21 1138 17.58 509 18.56 209 17.59  
 70–79 2274 10.31 1740 9.39 534 15.22   119 15.14 1149 10.58 632 9.76 259 9.45 115 9.68  
80 796 3.61 621 3.35 175 4.99   82 10.43 452 4.16 170 2.63 64 2.33 28 2.36  
Urbanization of residence area < 0.001   0.297
 1 & 2 10,027 45.48 8524 45.98 1503 42.84   356 45.29 5016 46.20 2947 45.52 1180 43.03 528 44.44  
 3 & 4 7234 32.81 6096 32.88 1138 32.44   255 32.44 3521 32.43 2122 32.78 940 34.28 396 33.33  
 5–7 4787 21.71 3920 21.14 867 24.71   175 22.26 2321 21.38 1405 21.70 622 22.68 264 22.22  
Monthly salary (NTD) < 0.001   < 0.001
 17,280 2578 11.69 2373 12.80 205 5.84   136 17.30 1343 12.37 680 10.50 280 10.21 139 11.70  
 17,281–22,800 9925 45.02 8149 43.95 1776 50.63   329 41.86 4864 44.80 2935 45.34 1254 45.73 543 45.71  
 22,801–36,300 5121 23.23 4255 22.95 866 24.68   197 25.06 2459 22.65 1499 23.15 667 24.33 299 25.17  
 > 36,300 4424 20.07 3763 20.30 661 18.84   124 15.78 2192 20.19 1360 21.01 541 19.73 207 17.42  
CCI < 0.001   < 0.001
 0 16,988 77.05 14,507 78.25 2481 70.72   550 69.97 8439 77.72 5042 77.88 2110 76.95 847 71.30  
 1–3 4303 19.52 3376 18.21 927 26.43   189 24.05 2017 18.58 1240 19.15 563 20.53 294 24.75  
 4 757 3.43 657 3.54 100 2.85   47 5.98 402 3.70 192 2.97 69 2.52 47 3.96  
DCSI < 0.001   < 0.001
 0 20,784 94.27 17,703 95.49 3081 87.83   737 93.77 10,300 94.86 6096 94.11 2565 93.54 1089 91.67  
 1 1264 5.73 837 4.51 427 12.17   49 6.23 558 5.14 381 5.89 177 6.46 99 8.33  
Weekly energy expended of calories in exercise < 0.001   < 0.001
 No exercise 12,001 54.43 10,216 57.02 1785 51.49   464 64.27 5881 55.96 3434 54.25 1522 57.00 700 60.66  
 < 500 kcal/week 3630 16.46 3045 16.99 585 16.87   142 19.67 1980 18.84 1029 16.26 345 12.92 134 11.61  
 500 kcal/week 5755 26.10 4658 25.99 1097 31.64   116 16.07 2649 25.20 1867 29.49 803 30.07 320 27.73  
 Missing 662 3.00  
  1. BMI body mass index, CCI Charlson Comorbidity Index, DCSI diabetes complication severity index
  2. NTD New Taiwan Dollar, 32 NTD = 1 US dollar
  3. Urbanization of residence area (Level 1 was the most urbanized)
  4. p-value: chi-square test
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