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              [html]<thead><tr><tdcolspan="6">Table 2 Baseline health - related information for the full cohort, and for those with complete and incomplete follow - up</td></tr><tr><td>Variable</td><td>Label</td><td>Full cohort at baseline ( n = 440 )</td><td>Completed follow - up ( n = 246 )</td><td>Did not complete follow - up ( n = 194 )</td><td>p - value °</td></tr></thead><tbody><tr><td>Health - related information</td><td></td><td></td><td></td><td></td><td></td></tr><tr><tdrowspan="4">Anatomical region</td><td>Neck</td><td>98 ( 22.3 %)</td><td>48 ( 19.5 %)</td><td>50 ( 25.8 %)</td><tdrowspan="4">0.27</td></tr><tr><td>Low Back</td><td>118 ( 26.8 %)</td><td>66 ( 26.8 %)</td><td>52 ( 26.8 %)</td></tr><tr><td>Shoulder</td><td>107 ( 24.3 %)</td><td>59 ( 24.0 %)</td><td>48 ( 24.7 %)</td></tr><tr><td>Knee</td><td>117 ( 26.6 %)</td><td>73 ( 29.7 %)</td><td>44 ( 22.7 %)</td></tr><tr><tdrowspan="3">Symptom onset</td><td>Gradual</td><td>239 ( 54.3 %)</td><td>146 ( 59.3 %)</td><td>93 ( 47.9 %)</td><tdrowspan="3">0.03</td></tr><tr><td>Sudden</td><td>138 ( 31.4 %)</td><td>65 ( 26.4 %)</td><td>73 ( 37.6 %)</td></tr><tr><td>Traumatic</td><td>63 ( 14.3 %)</td><td>35 ( 14.2 %)</td><td>28 ( 14.4 %)</td></tr><tr><tdrowspan="4">Duration of symptoms urgery for condition</td><td>Mean ± SD</td><td>398.58 ± 1715.80</td><td>379.79 ± 1999.77</td><td>423.01 ± 1259.33</td><tdrowspan="2">0.80</td></tr><tr><td>Median ( min, max )</td><td>90 ( 0 – 29565 )</td><td>90 ( 1 – 29565 )</td><td>90 ( 0 – 10000 )</td></tr><tr><td>Yes</td><td>83 ( 18.9 %)</td><td>44 ( 17.9 %)</td><td>39 ( 20.1 %)</td><tdrowspan="2">0.56</td></tr><tr><td>No</td><td>357 ( 81.1 %)</td><td>202 ( 82.1 %)</td><td>155 ( 79.9 %)</td></tr><tr><tdrowspan="2">Work - related injury ( 32 missing )</td><td>Yes</td><td>63 ( 14.3 %)</td><td>30 ( 12.2 %)</td><td>33 ( 17.0 %)</td><tdrowspan="2">0.36</td></tr><tr><td>No</td><td>345 ( 78.4 %)</td><td>198 ( 80.5 %)</td><td>147 ( 75.8 %)</td></tr><tr><tdrowspan="2">Chronicity</td><td>Acute</td><td>101 ( 23.0 %)</td><td>65 ( 26.4 %)</td><td>36 ( 18.6 %)</td><tdrowspan="2">0.05</td></tr><tr><td>Chronic</td><td>324 ( 73.6 %)</td><td>173 ( 70.3 %)</td><td>151 ( 77.8 %)</td></tr><tr><tdrowspan="2">Pain Intensity</td><td>Mean ± SD</td><td>4.22 ± 1.98</td><td>3.94 ± 1.72</td><td>4.58 ± 2.21</td><tdrowspan="2">0.01</td></tr><tr><td>Median ( min, max )</td><td>4 ( 0 – 9.67 )</td><td>4 ( 0 – 8 )</td><td>4.5 ( 0 – 9.7 )</td></tr><tr><tdrowspan="2">Disability</td><td>Mean ± SD</td><td>0 ± 1.0</td><td>− 0.06 ±. 97</td><td>0.08 ± 1.03</td><tdrowspan="2">0.16</td></tr><tr><td>Median ( min, max )</td><td>− 0.16 (− 2.41 – 3.14 )</td><td>− 0.23 (− 2.21 – 2.94 )</td><td>− 0.01 (− 2.41 – 3.14 )</td></tr><tr><tdrowspan="2">CCI</td><td>Mean ± SD</td><td>0.66 ± 1.47</td><td>0.68 ± 1.62</td><td>0.63 ± 1.25</td><tdrowspan="2">0.76</td></tr><tr><td>Median ( min, max )</td><td>0 ( 0 – 13 )</td><td>0 ( 0 – 13 )</td><td>0 ( 0 – 8 )</td></tr></tbody>
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