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}</style></head><body> <table class="headtab"> <tr><td style="text-align:left">sumtable {vtable}</td> <td style="text-align:right">Summary Statistics</td></tr></table> <h1>Summary Statistics</h1><table><tr><th style = "width:22%; text-align:left">Variable</th><th style = "width:11%; text-align:right">N</th><th style = "width:11%; text-align:right">Mean</th><th style = "width:11%; text-align:right">Std. Dev.</th><th style = "width:11%; text-align:right">Min</th><th style = "width:11%; text-align:right">Pctl. 25</th><th style = "width:11%; text-align:right">Pctl. 75</th><th style = "width:11%; text-align:right">Max</th></tr>
| Age | 210 | 66 | 10 | 21 | 61 | 73 | 86 |
| Gender | 210 | | | | | | |
| ... Female | 100 | 48% | | | | | |
| ... Male | 110 | 52% | | | | | |
| Race | 210 | | | | | | |
| ... Asian | 3 | 1% | | | | | |
| ... Black/African American | 13 | 6% | | | | | |
| ... Native American or Native Alaskan | 2 | 1% | | | | | |
| ... Unknown or unable to report | 2 | 1% | | | | | |
| ... White/Caucasian | 190 | 90% | | | | | |
| BMI | 209 | 28 | 6.1 | 15 | 24 | 31 | 48 |
| Smoking status | 210 | | | | | | |
| ... Current | 56 | 27% | | | | | |
| ... Former | 109 | 52% | | | | | |
| ... Never | 45 | 21% | | | | | |
| Co-morbidities:COPD | 210 | | | | | | |
| ... Checked | 86 | 41% | | | | | |
| ... Unchecked | 124 | 59% | | | | | |
| Co-morbidities:Heart failure with preserved Ejection Fraction | 210 | | | | | | |
| ... Checked | 8 | 4% | | | | | |
| ... Unchecked | 202 | 96% | | | | | |
| Co-morbidities:Heart failure with reduced Ejection Fraction | 210 | | | | | | |
| ... Checked | 8 | 4% | | | | | |
| ... Unchecked | 202 | 96% | | | | | |
| Co-morbidities:Prior malignancy, no evidence of current disease | 210 | | | | | | |
| ... Checked | 60 | 29% | | | | | |
| ... Unchecked | 150 | 71% | | | | | |
| Nodule Size | 209 | 16 | 4.9 | 5.9 | 12 | 20 | 30 |
| Nodule location | 210 | | | | | | |
| ... Lingula | 6 | 3% | | | | | |
| ... LLL | 44 | 21% | | | | | |
| ... LUL | 38 | 18% | | | | | |
| ... RLL | 46 | 22% | | | | | |
| ... RML | 13 | 6% | | | | | |
| ... RUL | 63 | 30% | | | | | |
| Nodule density | 210 | | | | | | |
| ... Part-solid | 36 | 17% | | | | | |
| ... Pure ground glass opacity | 2 | 1% | | | | | |
| ... Solid | 172 | 82% | | | | | |
| Spiculated | 210 | | | | | | |
| ... Checked | 102 | 49% | | | | | |
| ... Unchecked | 108 | 51% | | | | | |
| PET | 210 | | | | | | |
| ... No | 164 | 78% | | | | | |
| ... Yes | 46 | 22% | | | | | |
| PET activity | 46 | | | | | | |
| ... Faint | 18 | 39% | | | | | |
| ... Intense | 11 | 24% | | | | | |
| ... Moderate | 16 | 35% | | | | | |
| ... No uptake | 1 | 2% | | | | | |