Means, standard deviations (SD), and coefficient α for the five Smoking Policy Inventory (SPI) scales for six countries
| SPI scale | Australia (n = 403) | Hong Kong (n = 336) | Netherlands (n = 351) | South Africa (n = 291) | United Kingdom (n = 164) | United States (n = 241) |
|---|---|---|---|---|---|---|
| Advertising and promotion | ||||||
| Xc | 25.0 | 22.8 | 22.6 | 24.2 | 24.4 | 21.4 |
| SD | 7.07 | 6.01 | 7.51 | 7.94 | 7.51 | 7.55 |
| α | 0.90 | 0.87 | 0.92 | 0.89 | 0.93 | 0.92 |
| Public education | ||||||
| Xc | 31.0 | 32.1 | 29.5 | 30.6 | 30.2 | 30.7 |
| SD | 3.81 | 3.15 | 3.97 | 4.61 | 4.11 | 3.95 |
| α | 0.68 | 0.77 | 0.70 | 0.73 | 0.75 | 0.75 |
| Laws and penalties | ||||||
| Xc | 27.6 | 27.0 | 19.9 | 24.7 | 28.2 | 24.2 |
| SD | 5.83 | 5.20 | 7.17 | 7.28 | 5.14 | 7.18 |
| α | 0.82 | 0.83 | 0.89 | 0.84 | 0.80 | 0.90 |
| Taxes and fees | ||||||
| Xc | 26.4 | 27.0 | 27.0 | 26.3 | 25.7 | 24.9 |
| SD | 7.27 | 5.68 | 6.54 | 7.69 | 7.71 | 7.82 |
| α | 0.92 | 0.89 | 0.90 | 0.90 | 0.94 | 0.94 |
| Restrictions on smoking | ||||||
| Xc | 27.7 | 29.9 | 26.1 | 27.0 | 24.8 | 26.5 |
| SD | 6.60 | 4.90 | 7.64 | 6.92 | 7.44 | 8.02 |
| α | 0.86 | 0.81 | 0.91 | 0.83 | 0.90 | 0.93 |
| Total SPI score | ||||||
| Xc | 137.7 | 138.8 | 125.1 | 132.8 | 133.0 | 127.7 |
| SD | 23.8 | 18.0 | 24.4 | 29.0 | 26.0 | 29.1 |
Xc = unadjusted mean score.