FIGURE 2.
Effect of applying several risk factors serially. LEVEL 1 same-day multiple purchase; LEVEL 2 same-day multiple purchase and retailer with denials ≥2% of all prospective purchases; LEVEL 3 same-day multiple purchase, increased denials, and purchaser age <30; LEVEL 4 same-day multiple purchase, increased denials, purchaser age <30, and price of gun ≤$150.