CODEBOOK Summary of Carotid IMT Data (means of measurements and created variables) 7-29-2020 UPDATED: 28JUL2020 Start ____Field____ Section/ Column Len Format Variable Question Description Code ------ --- --------- ---------------- ------------ ------------------------------ ------------------------------ 1 6 6.0 CASEID Participant ID 100000= 100000 . . 699999= 699999 7 4 4.0 VISIT Visit Number 00= 00 . . 990= 990 11 9 9.5 RCCAdLAX Right Common Carotid Artery 0.00000= 0.00000 Diameter Long-Axis at End- . Diastole . 999.99999= 999.99999 -90= Extreme Value 20 9 9.5 RCCAsLAX Right Common Carotid Artery 0.00000= 0.00000 Diameter Long-Axis at End- . Systole . 999.99999= 999.99999 -90= Extreme Value 29 9 9.5 RCCAImt Right Common Carotid Artery 0.00000= 0.00000 Intima-Medial Thickness . . 999.99999= 999.99999 -90= Extreme Value 38 9 9.5 RCCAdSAX Right Common Carotid Artery 0.00000= 0.00000 Diameter Short-Axis at End- . Diastole . 999.99999= 999.99999 -90= Extreme Value 47 9 9.5 RCCAsSAX Right Common Carotid Artery 0.00000= 0.00000 Diameter Short-Axis at End- . Systole . 999.99999= 999.99999 -90= Extreme Value 56 9 9.5 LCCAdLAX Left Common Carotid Artery 0.00000= 0.00000 Diameter Long-Axis at End- . Diastole . 999.99999= 999.99999 -90= Extreme Value 65 9 9.5 LCCAsLAX Left Common Carotid Artery 0.00000= 0.00000 Diameter Long-Axis at End- . Systole . 999.99999= 999.99999 -90= Extreme Value 74 9 9.5 LCCAImt Left Common Carotid Artery 0.00000= 0.00000 Intima-Medial Thickness . . 999.99999= 999.99999 -90= Extreme Value 83 9 9.5 LCCAdSAX Left Common Carotid Artery 0.00000= 0.00000 Diameter Short-Axis at End- . Diastole . 999.99999= 999.99999 -90= Extreme Value 92 9 9.5 LCCAsSAX Left Common Carotid Artery 0.00000= 0.00000 Diameter Short-Axis at End- . Systole . 999.99999= 999.99999 -90= Extreme Value 101 10 10.5 RCCA_LAX_Strain Right Common Carotid Artery 0.00000= 0.00000 Strain Long-Axis . . 999.99999= 999.99999 -90= Extreme Value 111 9 9.5 RCCA_LAX_Dis Right Common Carotid Artery 0.00000= 0.00000 Distensibility Long-Axis . . 999.99999= 999.99999 -90= Extreme Value 120 10 10.5 RCCA_LAX_Stiff Right Common Carotid Artery 0.00000= 0.00000 Stiffness Long-Axis . . 999.99999= 999.99999 -90= Extreme Value 130 10 10.5 RCCA_LAX_Mod Right Common Carotid Artery 0.00000= 0.00000 Pressure Strain Modulus Long- . Axis . 999.99999= 999.99999 -90= Extreme Value 140 9 9.5 RCCA_SAX_Strain Right Common Carotid Artery 0.00000= 0.00000 Strain Short-Axis . . 999.99999= 999.99999 -90= Extreme Value 149 9 9.5 RCCA_SAX_Dis Right Common Carotid Artery 0.00000= 0.00000 Distensibility Short-Axis . . 999.99999= 999.99999 -90= Extreme Value 158 10 10.5 RCCA_SAX_Stiff Right Common Carotid Artery 0.00000= 0.00000 Stiffness Short-Axis . . 999.99999= 999.99999 -90= Extreme Value 168 10 10.5 RCCA_SAX_Mod Right Common Carotid Artery 0.00000= 0.00000 Pressure Strain Modulus Short- . Axis . 999.99999= 999.99999 -90= Extreme Value 178 9 9.5 LCCA_LAX_Strain Left Common Carotid Artery 0.00000= 0.00000 Strain Long-Axis . . 999.99999= 999.99999 -90= Extreme Value 187 9 9.5 LCCA_LAX_Dis Left Common Carotid Artery 0.00000= 0.00000 Distensibility Long-Axis . . 999.99999= 999.99999 -90= Extreme Value 196 10 10.5 LCCA_LAX_Stiff Left Common Carotid Artery 0.00000= 0.00000 Stiffness Long-Axis . . 999.99999= 999.99999 -90= Extreme Value 206 10 10.5 LCCA_LAX_Mod Left Common Carotid Artery 0.00000= 0.00000 Pressure Strain Modulus Long- . Axis . 999.99999= 999.99999 -90= Extreme Value 216 9 9.5 LCCA_SAX_Strain Left Common Carotid Artery 0.00000= 0.00000 Strain Short-Axis . . 999.99999= 999.99999 -90= Extreme Value 225 9 9.5 LCCA_SAX_Dis Left Common Carotid Artery 0.00000= 0.00000 Distensibility Short-Axis . . 999.99999= 999.99999 -90= Extreme Value 234 10 10.5 LCCA_SAX_Stiff Left Common Carotid Artery 0.00000= 0.00000 Stiffness Short-Axis . . 999.99999= 999.99999 -90= Extreme Value 244 10 10.5 LCCA_SAX_Mod Left Common Carotid Artery 0.00000= 0.00000 Pressure Strain Modulus Short- . Axis . 999.99999= 999.99999 -90= Extreme Value 254 9 9.5 cIMT Carotid Artery Intima-Medial 0.00000= 0.00000 Thickness . . 999.99999= 999.99999 -90= Extreme Value 263 9 9.5 Distensibility Carotid Artery Distensibility 0.00000= 0.00000 . . 999.99999= 999.99999 -90= Extreme Value 272 10 10.5 Stiffness Carotid Artery Stiffness 0.00000= 0.00000 . . 999.99999= 999.99999 -90= Extreme Value 282 10 9.5 Einc Carotid Artery Pressure 0.00000= 0.00000 Strain Modulus) . . 999.99999= 999.99999 -90= Extreme Value 292 6 $ VERSION Version number of data P01= Version 01 . . P99= Version 99