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Table 5 Total cigarette smoking prevalence and annualized rates of change by income quintile, 1996-2012

From: Cigarette smoking prevalence in US counties: 1996-2012

  Income quintile, 1996 Median annualized rate of change, 1996-2012 (%)* Median age-standardized total smoking prevalence, 1996 (%)* Median age-standardized total smoking prevalence, 2012 (%)* Counties with statistically significant declines between 1996 and 2012 (%)
Males 1st quintile -0.5 (-2.4, 1.1) 32.1 (22.8, 40.7) 29.6 (17.5, 37.9) 14.1
2nd quintile -0.8 (-2.3, 0.7) 30.5 (20.4, 39.5) 27.2 (18.1, 34.8) 22.7
3rd quintile -0.9 (-2.4, 0.4) 29.4 (19.7, 41.5) 25.6 (14.8, 41.2) 34.6
4th quintile -1.1 (-2.8, 0.3) 29.0 (17.5, 37.9) 24.5 (12.8, 37.5) 52.2
5th quintile -1.4 (-4.5, 0.0) 27.3 (15.5, 42.6) 21.8 (9.9, 41.5) 75.4
Females 1st quintile -0.3 (-4.1, 1.4) 24.6 (14.0, 36.8) 23.6 (8.6, 36.5) 4.2
2nd quintile -0.4 (-2.5, 1.6) 24.8 (14.3, 35.7) 23.2 (11.7, 32.4) 5.1
3rd quintile -0.5 (-2.7, 1.1) 24.4 (13.6, 33.2) 22.2 (11.8, 36.2) 8.2
4th quintile -0.7 (-3.0, 1.7) 23.9 (11.0, 35.1) 21.4 (9.1, 31.9) 18.4
5th quintile -1.2 (-3.7, 0.9) 22.5 (9.0, 36.7) 18.7 (5.8, 40.8) 45.2
  1. *Numbers in parentheses are the minimum and maximum.