Table 2.
Descriptive statistics for 149 retailers who provided a response and 151 others (continuous variables)
| Variable | Responders N = 149 | Nonresponders N = 151 | P | ||
|---|---|---|---|---|---|
| Median | IQR | Median | IQR | ||
| Retailer characteristics | |||||
| Gun-years of exposure (×1,000) | 2.5 | 1.3–6.1 | 1.2 | 0.8–2.2 | <0.0001 |
| Traced guns per 1,000 gun-years | 1.3 | 0.5–2.7 | 1.5 | 0.4–3.6 | 0.27 |
| Gun-years from sales of multiple guns (%)a | 6.4 | 4.0–9.6 | 9.1 | 5.5–14.6 | 0.0001 |
| Clientele characteristics | |||||
| Denials, % of (sales + denials) | 1.9 | 1.3–2.4 | 1.7 | 0.8–2.5 | 0.062 |
Because the descriptive statistics differ, categorical variables and continuous variables are listed separately
IQR interquartile range, CI confidence interval
aSales of more than one handgun in a single transaction (which became illegal in California in 2000)