Figure 3.
Adjusted symptom combination marginal meansa for lung cancer in the 1-year period following negative SR-CXR.aMarginal means are the average risks of cancer for different groups (for example, those with or without a symptom), taking into account the characteristics (such as age and sex) of the people in each group. When the average risk for people with a symptom is compared with that for people without that symptom, it gives an estimate of the additional risk of cancer for people with the symptom. Unbolded data from <5 cases. SR-CXR = self-requested chest X-ray.