Distribution of observed and expected US SP estimates according to calendar period: pre-crisis (2005–2007) versus post-crisis (2009–2010), overall and by sex. Corresponding SSPR. BRFSS, 2005–2007, 2009–2010
| Factor | Smoking prevalence (%) | |||||
|---|---|---|---|---|---|---|
| Pre-crisis 2005–2007 | Post-crisis 2009–2010 | |||||
| Total | Men | Women | Total | Men | Women | |
| Total | ||||||
| Observed SP | 19.80 | 21.97 | 17.76 | 17.52 | 19.50 | 15.65 |
| Expected SP* | 19.80 | 21.97 | 17.76 | 17.08 | 19.13 | 15.14 |
| SSPR | 1.000 | 1.000 | 1.000 | 1.026 | 1.019 | 1.034 |
| Number of participants | 1 122 424 | 544 197 | 578 227 | 859 183 | 417 489 | 441 694 |
| Employed | ||||||
| Observed SP | 20.74 | 22.23 | 18.89 | 16.86 | 18.10 | 15.39 |
| Expected SP* | 21.13 | 22.81 | 19.04 | 16.91 | 18.57 | 14.93 |
| SSPR | 0.982 | 0.975 | 0.992 | 0.997 | 0.975 | 1.031 |
| Number of participants | 686 986 | 379 980 | 307 006 | 490 853 | 266 850 | 224 003 |
| Unemployed | ||||||
| Observed SP | 34.87 | 39.58 | 30.22 | 32.59 | 36.35 | 27.73 |
| Expected SP* | 26.32 | 29.71 | 22.97 | 26.88 | 33.11 | 19.87 |
| SSPR | 1.325 | 1.332 | 1.316 | 1.213 | 1.098 | 1.395 |
| Number of participants | 55 551 | 27 625 | 27 926 | 73 896 | 41 645 | 32 251 |
| Unpaid/unable to work | ||||||
| Observed SP | 22.50 | 37.93 | 18.99 | 21.87 | 36.44 | 18.25 |
| Expected SP* | 20.89 | 30.68 | 18.67 | 20.62 | 30.99 | 17.81 |
| SSPR | 1.077 | 1.236 | 1.017 | 1.061 | 1.176 | 1.025 |
| Number of participants | 149 024 | 27 567 | 121 457 | 113 437 | 22 602 | 90 835 |
| Student | ||||||
| Observed SP | 15.30 | 15.80 | 14.86 | 13.21 | 13.53 | 12.88 |
| Expected SP* | 22.73 | 25.08 | 20.66 | 20.66 | 22.51 | 19.18 |
| SSPR | 0.673 | 0.630 | 0.719 | 0.639 | 0.601 | 0.672 |
| Number of participants | 50 750 | 23 763 | 26 987 | 41 602 | 20 633 | 20 969 |
| Retired | ||||||
| Observed SP | 10.59 | 11.63 | 9.66 | 9.61 | 10.58 | 8.73 |
| Expected SP* | 10.99 | 12.01 | 10.08 | 10.28 | 10.66 | 9.88 |
| SSPR | 0.964 | 0.968 | 0.958 | 0.935 | 0.992 | 0.883 |
| Number of participants | 180 113 | 85 262 | 94 851 | 139 395 | 65 759 | 73 636 |
*Estimated through indirect standardisation under the assumption that the sex-specific, age-specific, race/ethnicity-specific, education-specific and marital status-specific subjects have the same prevalence rates of the corresponding categories in the general adult population observed over the period 2005–2007 (pre-crisis). Expected SP estimates for the period 2009–2010 further take into account the sex-specific and employment status-specific smoking prevalence trends observed during the period 2005–2007.
BRFSS, Behavioural Risk Factor Surveillance System; SP, smoking prevalence; SSPR, standardised smoking prevalence ratio.