Table 3.
Provider Documentation of Radiologic Characteristics and Lung Cancer Risk Factors among Individuals with a Lung Nodule
| FREQUENCY (95% CONFIDENCE INTERVAL) (n=156) | |
|---|---|
| RADIOGRAPHIC CHARACTERISTICS | |
| Nodule size | 100% (98–100%) |
| Lobar location of lung nodule | 99% (96–100%) |
| Number of nodules | 99% (96–100%) |
| Calcified nodule | 31% (24–39%) |
| Nodule density | 7.7% (4.0–13%) |
| Spiculated border | 5.1% (2.2–10%) |
| CLINICAL RISK FACTORS* | |
| Smoking status** | 95% (90–98%) |
| Body mass index | 89% (83–94%) |
| Pack-years tobacco | 86% (79–91%) |
| Years quit among former smokers*** | 78% (67–86%) |
| Personal history of extrathoracic malignancy | 35% (27–43%) |
| Underlying pulmonary disease | 32% (25–40%) |
| Family history of lung cancer | 10% (6.0–16%) |
| Personal history of radiation therapy | 5.1% (2.2–9.9%) |
| Exposure to second-hand smoke | 3.2% (1.0–7.3%) |
Notes:
*
Data for the following variables were suppressed because five or fewer subjects had documentation about the risk factor: radon, silica, cadmium, asbestos, arsenic, beryllium, chromium, diesel fuel, nickel, coal smoke, soot, and dust.
**
Ascertained by chart abstraction of structured and unstructured data within the electronic health record (EHR) 30 days prior to the date of the CT.
***
Calculated among former smokers.