Percent distribution of the drinking levels of males 18 years of age and older according to selected characteristics: United States, NHIS, 1997

[dkpat26.htm, updated 12/07]

	Drinking Levels
	Abstainer	Light drinker	Moderate drinker	Heavier drinker
	Estimate
Age
18–24 years
2006	35.8	39.5	18.4	6.3
CI	(32.4–39.3)	(35.6–43.3)	(15.6–21.3)	(4.3–8.3)
2005	37.3	34.9	19.8	8.0
CI	(33.9–40.7)	(31.8–38.1)	(17.3–22.2)	(6.2–9.8)
2004	36.4	35.5	19.8	8.2
CI	(33.0–39.8)	(32.6–38.4)	(17.1–22.6)	(6.4–10.1)
2003	34.8	38.4	19.7	7.1
CI	(31.7–38.0)	(35.4–41.5)	(17.3–22.1)	(5.4–8.7)
2002	29.4	39.1	24.1	7.4
CI	(26.6–32.2)	(35.9–42.3)	(21.2–26.9)	(5.7–9.2)
2001	30.4	41.1	20.4	8.1
CI	(27.3–33.5)	(38.2–44.0)	(18.1–22.6)	(6.4–9.8)
2000	36.0	39.1	18.7	6.2
CI	(32.9–39.0)	(36.2–41.9)	(16.5–21.0)	(4.9–7.6)
1999	32.4	39.9	21.7	6.0
CI	(29.4–35.4)	(36.9–42.8)	(19.4–24.1)	(4.6–7.4)
1998	32.3	40.8	20.8	6.1
CI	(29.3–35.3)	(37.6–44.0)	(18.4–23.2)	(4.7–7.5)
1997	33.3	42.2	18.6	5.9
CI	(30.2–36.4)	(39.3–45.2)	(16.2–20.9)	(4.4–7.4)
25–34 years
2006	25.5	44.3	24.2	6.0
CI	(23.2–27.8)	(41.5–47.0)	(21.8–26.6)	(4.7–7.3)
2005	22.5	46.9	24.8	5.8
CI	(20.6–24.4)	(44.6–49.1)	(22.8–26.7)	(4.8–6.9)
2004	22.4	48.9	23.1	5.6
CI	(20.4–24.4)	(46.7–51.1)	(21.2–25.1)	(4.5–6.6)
2003	22.8	47.1	24.1	6.0
CI	(20.8–24.7)	(44.9–49.3)	(22.2–26.1)	(5.0–7.1)
2002	19.5	50.6	24.1	5.8
CI	(17.5–21.4)	(48.3–52.9)	(22.3–25.9)	(4.8–6.9)
2001	21.2	47.3	25.9	5.7
CI	(19.3–23.1)	(45.2–49.3)	(24.0–27.7)	(4.7–6.6)
2000	22.5	47.7	24.1	5.7
CI	(20.6–24.3)	(45.4–49.9)	(22.1–26.1)	(4.8–6.7)
1999	20.5	49.9	24.1	5.5
CI	(18.4–22.6)	(47.4–52.3)	(22.1–26.1)	(4.6–6.5)
1998	21.1	50.8	23.1	5.0
CI	(19.3–23.0)	(48.7–52.9)	(21.5–24.7)	(4.1–5.9)
1997	20.6	48.3	25.0	6.2
CI	(18.9–22.2)	(46.3–50.2)	(23.4–26.6)	(5.2–7.1)
35–44 years
2006	26.7	44.0	23.8	5.5
CI	(24.5–28.8)	(41.6–46.4)	(21.7–26.0)	(4.4–6.6)
2005	26.8	43.9	23.9	5.3
CI	(24.9–28.7)	(41.9–46.0)	(22.0–25.8)	(4.4–6.3)
2004	26.5	46.0	22.2	5.3
CI	(24.4–28.6)	(43.8–48.3)	(20.4–23.9)	(4.4–6.2)
2003	26.4	45.2	23.2	5.2
CI	(24.6–28.3)	(43.0–47.3)	(21.4–24.9)	(4.3–6.2)
2002	24.7	44.5	23.9	6.9
CI	(22.8–26.6)	(42.5–46.4)	(22.2–25.6)	(5.9–7.9)
2001	24.8	45.9	23.9	5.4
CI	(23.0–26.6)	(44.1–47.7)	(22.3–25.5)	(4.5–6.3)
2000	25.3	46.2	23.7	4.8
CI	(23.5–27.0)	(44.1–48.3)	(21.9–25.5)	(4.0–5.7)
1999	24.0	45.1	23.9	7.0
CI	(22.2–25.7)	(43.0–47.3)	(22.1–25.7)	(5.9–8.0)
1998	25.6	44.6	23.9	5.8
CI	(23.9–27.3)	(42.7–46.5)	(22.3–25.6)	(4.9–6.8)
1997	24.7	44.8	23.7	6.9
CI	(23.2–26.3)	(43.0–46.5)	(22.1–25.2)	(6.0–7.8)
45–54 years
2006	30.2	42.0	21.5	6.3
CI	(27.7–32.8)	(39.4–44.7)	(19.3–23.7)	(4.9–7.6)
2005	29.0	41.7	23.5	5.9
CI	(26.9–31.0)	(39.6–43.8)	(21.6–25.3)	(4.8–6.9)
2004	30.9	42.4	21.7	5.0
CI	(28.7–33.1)	(40.3–44.6)	(19.8–23.6)	(4.1–5.8)
2003	31.5	39.8	21.9	6.7
CI	(29.2–33.9)	(37.5–42.1)	(20.0–23.8)	(5.6–7.9)
2002	29.0	43.0	22.6	5.3
CI	(26.8–31.2)	(40.8–45.3)	(20.8–24.5)	(4.4–6.2)
2001	29.9	42.6	21.1	6.3
CI	(27.8–32.0)	(40.5–44.8)	(19.4–22.8)	(5.3–7.4)
2000	29.7	45.4	19.4	5.5
CI	(27.5–31.8)	(43.1–47.7)	(17.6–21.3)	(4.5–6.6)
1999	28.2	42.9	22.6	6.3
CI	(26.1–30.3)	(40.4–45.3)	(20.6–24.7)	(5.3–7.4)
1998	29.1	41.5	23.4	6.0
CI	(26.9–31.2)	(39.4–43.7)	(21.5–25.3)	(4.9–7.1)
1997	26.2	45.2	22.1	6.5
CI	(24.4–27.9)	(42.9–47.5)	(20.3–23.9)	(5.5–7.5)
55–64 years
2006	36.2	35.6	23.2	5.0
CI	(33.1–39.3)	(32.7–38.5)	(20.6–25.7)	(3.8–6.2)
2005	36.2	37.3	20.9	5.6
CI	(33.9–38.5)	(35.0–39.6)	(18.9–22.8)	(4.6–6.6)
2004	37.6	36.8	21.4	4.2
CI	(34.9–40.3)	(34.4–39.1)	(19.1–23.8)	(3.2–5.3)
2003	37.3	36.6	20.5	5.6
CI	(34.7–39.9)	(34.0–39.1)	(18.4–22.6)	(4.5–6.8)
2002	36.2	37.2	21.2	5.4
CI	(33.8–38.7)	(34.5–39.8)	(19.0–23.3)	(4.2–6.6)
2001	35.8	37.6	20.8	5.8
CI	(33.3–38.4)	(35.0–40.3)	(18.7–22.8)	(4.6–6.9)
2000	35.4	37.9	21.4	5.3
CI	(32.9–38.0)	(35.3–40.6)	(19.2–23.5)	(4.1–6.4)
1999	36.8	37.4	19.9	5.9
CI	(34.1–39.4)	(34.7–40.2)	(17.5–22.3)	(4.6–7.2)
1998	35.5	37.2	20.6	6.7
CI	(32.9–38.1)	(34.5–39.9)	(18.3–22.8)	(5.3–8.0)
1997	34.2	39.2	20.2	6.5
CI	(31.4–36.9)	(36.5–41.8)	(18.0–22.4)	(5.2–7.7)
65+ years
2006	45.6	30.9	19.9	3.6
CI	(42.6–48.6)	(28.2–33.6)	(17.5–22.2)	(2.6–4.6)
2005	48.0	29.4	19.5	3.1
CI	(45.8–50.3)	(27.3–31.4)	(17.6–21.4)	(2.3–4.0)
2004	47.2	33.0	16.8	3.0
CI	(44.8–49.5)	(30.8–35.1)	(15.1–18.6)	(2.3–3.7)
2003	48.4	30.3	18.5	2.8
CI	(45.9–50.9)	(28.0–32.6)	(16.5–20.5)	(2.0–3.5)
2002	48.0	30.7	17.3	4.0
CI	(45.6–50.4)	(28.8–32.7)	(15.4–19.3)	(3.0–4.9)
2001	49.1	29.4	18.3	3.2
CI	(46.8–51.4)	(27.4–31.4)	(16.5–20.0)	(2.4–4.0)
2000	50.0	30.0	16.9	3.1
CI	(47.5–52.4)	(28.0–32.1)	(15.2–18.7)	(2.4–3.8)
1999	47.4	30.5	17.7	4.4
CI	(45.0–49.8)	(28.2–32.8)	(15.9–19.5)	(3.4–5.4)
1998	48.8	29.9	17.6	3.7
CI	(46.5–51.1)	(27.9–32.0)	(15.9–19.3)	(2.9–4.5)
1997	47.3	30.8	18.2	3.7
CI	(45.1–49.5)	(28.8–32.8)	(16.5–20.0)	(2.9–4.5)
Education
Less than HS
2006	43.3	34.4	16.6	5.6
CI	(40.5–46.1)	(31.6–37.1)	(14.8–18.5)	(4.4–6.9)
2005	45.7	32.2	16.3	5.8
CI	(43.2–48.2)	(29.7–34.6)	(14.5–18.2)	(4.6–6.9)
2004	44.7	34.7	15.2	5.3
CI	(42.2–47.2)	(32.3–37.2)	(13.5–17.0)	(4.2–6.4)
2003	45.4	34.2	14.6	5.8
CI	(43.2–47.6)	(32.0–36.3)	(13.0–16.2)	(4.7–6.9)
2002	44.1	31.0	17.3	7.5
CI	(41.6–46.6)	(28.8–33.3)	(15.4–19.2)	(6.2–8.9)
2001	45.1	33.7	14.8	6.4
CI	(43.0–47.3)	(31.5–35.8)	(13.4–16.2)	(5.3–7.4)
2000	45.6	32.3	16.2	5.9
CI	(43.4–47.8)	(30.2–34.4)	(14.6–17.9)	(5.0–6.9)
1999	45.0	32.3	15.8	6.9
CI	(42.6–47.4)	(30.1–34.4)	(14.1–17.6)	(5.7–8.1)
1998	46.7	32.2	14.2	6.9
CI	(44.4–49.0)	(30.1–34.2)	(12.8–15.7)	(5.8–8.1)
1997	42.4	33.8	16.8	7.0
CI	(40.4–44.4)	(31.9–35.6)	(15.3–18.3)	(6.0–8.0)
GED
2006	40.2	32.6	17.7	*9.5
CI	(33.6–46.8)	(26.6–38.7)	(12.6–22.9)	*(5.6–13.3)
2005	33.8	36.9	20.5	8.8
CI	(28.9–38.8)	(31.8–42.0)	(15.6–25.4)	(5.5–12.0)
2004	34.1	39.0	18.7	8.3
CI	(28.4–39.7)	(33.1–44.9)	(13.9–23.5)	(5.2–11.4)
2003	36.7	39.0	15.4	8.9
CI	(30.4–43.0)	(32.4–45.5)	(11.4–19.5)	(5.6–12.2)
2002	34.0	37.5	17.9	10.6
CI	(28.8–39.2)	(32.4–42.6)	(14.3–21.4)	(7.6–13.7)
2001	32.4	36.6	20.0	11.0
CI	(27.0–37.7)	(30.9–42.4)	(15.0–25.0)	(7.3–14.8)
2000	33.8	36.9	18.5	10.8
CI	(28.3–39.3)	(30.9–42.8)	(14.2–22.9)	(7.1–14.6)
1999	36.6	33.6	18.6	11.2
CI	(29.8–43.5)	(27.7–39.5)	(14.2–23.0)	(7.4–15.0)
1998	27.5	41.1	24.0	7.5
CI	(22.5–32.5)	(36.1–46.1)	(19.2–28.7)	(4.8–10.2)
1997	30.1	41.0	16.9	12.0
CI	(25.3–34.8)	(35.9–46.1)	(13.2–20.7)	(8.7–15.3)
HS graduate
2006	35.2	38.7	19.5	6.6
CI	(32.8–37.5)	(36.6–40.8)	(17.6–21.3)	(5.5–7.8)
2005	38.3	36.2	19.6	6.0
CI	(36.3–40.2)	(34.3–38.0)	(18.0–21.2)	(5.1–6.8)
2004	36.0	38.2	20.1	5.6
CI	(33.8–38.2)	(36.3–40.2)	(18.5–21.8)	(4.7–6.6)
2003	35.1	38.0	20.6	6.3
CI	(33.1–37.0)	(36.2–39.8)	(19.0–22.3)	(5.3–7.2)
2002	32.6	40.5	20.8	6.2
CI	(30.8–34.4)	(38.5–42.4)	(19.2–22.4)	(5.2–7.0)
2001	33.4	39.6	20.2	6.8
CI	(31.5–35.2)	(37.7–41.5)	(18.7–21.8)	(5.8–7.8)
2000	33.1	40.3	20.8	5.8
CI	(31.1–35.1)	(38.3–42.3)	(19.2–22.3)	(5.0–6.7)
1999	30.4	42.3	20.9	6.4
CI	(28.8–32.1)	(40.4–44.2)	(19.4–22.5)	(5.5–7.2)
1998	32.8	39.8	21.0	6.3
CI	(31.0–34.6)	(38.0–41.6)	(19.3–22.8)	(5.4–7.3)
1997	32.2	40.1	21.0	6.7
CI	(30.5–34.0)	(38.2–41.9)	(19.4–22.5)	(5.8–7.6)
Some college
2006	30.7	41.5	22.6	5.2
CI	(28.5–32.9)	(39.0–43.9)	(20.7–24.4)	(4.2–6.2)
2005	27.9	42.0	23.3	6.8
CI	(26.1–29.8)	(40.1–44.0)	(21.6–24.9)	(5.8–7.8)
2004	29.7	42.1	21.8	6.3
CI	(27.9–31.6)	(40.1–44.2)	(20.1–23.6)	(5.3–7.3)
2003	30.4	40.9	22.2	6.6
CI	(28.5–32.2)	(39.0–42.7)	(20.6–23.8)	(5.6–7.7)
2002	26.8	44.0	23.5	5.7
CI	(25.1–28.6)	(42.0–46.0)	(21.8–25.2)	(4.8–6.6)
2001	26.9	42.9	24.2	6.0
CI	(25.1–28.7)	(41.1–44.6)	(22.8–25.6)	(5.2–6.9)
2000	28.1	45.2	21.5	5.2
CI	(26.4–29.8)	(43.5–47.0)	(19.9–23.1)	(4.4–5.9)
1999	26.0	44.1	23.5	6.4
CI	(24.2–27.8)	(42.1–46.2)	(22.0–25.1)	(5.5–7.2)
1998	26.6	44.1	23.8	5.6
CI	(24.8–28.4)	(42.3–45.8)	(22.3–25.2)	(4.8–6.3)
1997	24.8	46.1	22.8	6.2
CI	(23.2–26.5)	(44.4–47.9)	(21.5–24.2)	(5.4–7.0)
College graduate
2006	22.8	44.8	28.2	4.2
CI	(20.8–24.8)	(42.4–47.1)	(26.1–30.3)	(3.1–5.3)
2005	21.2	46.7	28.3	3.8
CI	(19.6–22.9)	(44.8–48.6)	(26.4–30.1)	(3.1–4.4)
2004	23.2	47.9	25.6	3.3
CI	(21.4–25.0)	(45.9–49.9)	(23.7–27.4)	(2.6–4.0)
2003	21.8	46.8	27.8	3.6
CI	(20.2–23.5)	(44.8–48.7)	(25.8–29.9)	(2.9–4.2)
2002	21.2	47.8	26.8	4.3
CI	(19.2–23.1)	(45.8–49.8)	(25.1–28.5)	(3.4–5.1)
2001	21.1	48.6	26.8	3.4
CI	(19.6–22.7)	(46.8–50.4)	(25.2–28.5)	(2.8–4.1)
2000	23.5	48.5	25.0	3.1
CI	(21.8–25.2)	(46.6–50.3)	(23.2–26.7)	(2.4–3.8)
1999	22.0	47.2	26.9	3.9
CI	(20.2–23.7)	(45.2–49.3)	(24.9–28.9)	(3.2–4.6)
1998	21.0	48.9	26.8	3.4
CI	(19.5–22.5)	(47.0–50.8)	(25.2–28.3)	(2.7–4.1)
1997	20.9	49.2	26.5	3.5
CI	(19.4–22.4)	(47.4–50.9)	(24.9–28.1)	(2.9–4.1)
Race/Ethnicity
Hispanic
2006	35.4	41.4	19.5	3.7
CI	(32.7–38.0)	(38.5–44.4)	(17.4–21.5)	(2.8–4.7)
2005	35.2	40.8	20.2	3.8
CI	(33.0–37.4)	(38.5–43.1)	(18.0–22.4)	(3.0–4.5)
2004	33.9	45.5	16.2	4.4
CI	(31.3–36.5)	(43.0–48.0)	(14.5–17.9)	(3.3–5.5)
2003	34.5	43.8	18.2	3.6
CI	(31.9–37.1)	(41.3–46.2)	(16.5–19.8)	(2.6–4.5)
2002	33.3	42.3	19.5	5.0
CI	(30.7–35.8)	(39.7–44.9)	(17.6–21.4)	(4.0–5.9)
2001	35.7	41.2	17.4	5.7
CI	(33.3–38.2)	(39.1–43.4)	(15.5–19.2)	(4.6–6.8)
2000	34.5	41.6	19.0	4.9
CI	(32.0–37.0)	(38.8–44.4)	(16.8–21.2)	(3.9–5.9)
1999	31.9	43.4	19.2	5.6
CI	(29.1–34.6)	(40.6–46.2)	(17.0–21.3)	(4.3–6.8)
1998	31.7	44.1	19.1	5.0
CI	(29.1–34.3)	(41.5–46.8)	(17.2–21.1)	(3.9–6.1)
1997	31.8	43.7	18.6	5.8
CI	(29.6–34.0)	(41.5–45.9)	(17.0–20.2)	(4.6–7.0)
White, non-Hispanic
2006	29.8	39.6	24.4	6.2
CI	(28.2–31.4)	(38.1–41.1)	(23.1–25.7)	(5.5–6.9)
2005	29.1	40.4	24.2	6.2
CI	(27.9–30.4)	(39.2–41.6)	(23.2–25.3)	(5.7–6.8)
2004	29.9	41.1	23.3	5.7
CI	(28.7–31.2)	(39.9–42.2)	(22.2–24.4)	(5.2–6.2)
2003	29.6	40.4	23.7	6.4
CI	(28.4–30.7)	(39.3–41.6)	(22.6–24.7)	(5.8–7.0)
2002	27.4	42.1	24.3	6.2
CI	(26.2–28.6)	(40.9–43.3)	(23.2–25.4)	(5.6–6.8)
2001	28.0	41.7	24.2	6.1
CI	(26.9–29.1)	(40.5–42.8)	(23.3–25.2)	(5.5–6.6)
2000	29.4	42.9	22.5	5.2
CI	(28.3–30.5)	(41.8–44.0)	(21.5–23.5)	(4.7–5.6)
1999	27.5	42.8	23.5	6.2
CI	(26.4–28.7)	(41.5–44.0)	(22.4–24.6)	(5.6–6.7)
1998	28.5	42.1	23.5	6.0
CI	(27.4–29.6)	(41.0–43.2)	(22.5–24.4)	(5.4–6.4)
1997	27.1	43.4	23.2	6.3
CI	(26.1–28.1)	(42.4–44.5)	(22.2–24.1)	(5.9–6.8)
Black, non-Hispanic
2006	40.5	38.4	16.6	4.6
CI	(37.4–43.5)	(35.1–41.6)	(14.0–19.2)	(3.1–6.1)
2005	43.2	35.2	17.2	4.5
CI	(40.1–46.3)	(32.5–37.8)	(15.0–19.4)	(3.4–5.6)
2004	43.5	37.5	14.6	4.4
CI	(40.5–46.5)	(34.7–40.2)	(12.7–16.5)	(3.2–5.7)
2003	43.7	36.3	15.6	4.4
CI	(40.5–46.8)	(33.5–39.0)	(13.5–17.7)	(3.2–5.6)
2002	42.0	36.3	17.0	4.6
CI	(39.0–45.0)	(33.3–39.4)	(14.9–19.1)	(3.5–5.8)
2001	41.3	40.1	14.7	3.9
CI	(38.5–44.0)	(37.3–43.0)	(12.8–16.7)	(2.9–4.8)
2000	41.3	37.5	15.9	5.4
CI	(38.4–44.2)	(34.6–40.4)	(13.8–17.9)	(4.1–6.6)
1999	43.1	34.0	18.0	4.8
CI	(40.2–46.0)	(31.3–36.8)	(15.9–20.2)	(3.5–6.1)
1998	41.7	36.4	17.7	4.1
CI	(38.1–45.3)	(33.2–39.7)	(15.5–19.9)	(3.1–5.2)
1997	41.7	35.1	17.9	5.3
CI	(39.0–44.4)	(32.3–37.9)	(15.6–20.2)	(4.3–6.3)
Other, non-Hispanic
2006	43.5	44.8	8.8	*2.9
CI	(38.7–48.3)	(40.2–49.5)	(6.7–10.8)	*(1.4–4.4)
2005	45.0	38.8	12.0	*4.2
CI	(40.2–49.8)	(33.6–44.0)	(9.1–14.9)	*(1.9–6.4)
2004	41.3	41.8	14.8	*2.1
CI	(35.9–46.7)	(36.1–47.5)	(11.1–18.5)	*(1.0–3.2)
2003	47.6	38.1	12.0	*2.3
CI	(42.1–53.1)	(33.0–43.3)	(8.7–15.3)	*(0.9–3.6)
2002	36.4	45.0	13.0	*5.7
CI	(31.6–41.2)	(40.0–50.0)	(9.8–16.1)	*(3.0–8.4)
2001	37.8	42.7	14.9	4.6
CI	(33.1–42.5)	(38.3–47.0)	(11.3–18.5)	(2.9–6.3)
2000	41.8	40.0	13.8	*4.4
CI	(36.4–47.2)	(34.4–45.6)	(10.4–17.3)	*(2.4–6.3)
1999	39.1	42.9	12.7	*5.3
CI	(33.9–44.3)	(37.1–48.7)	(9.1–16.3)	*(2.4–8.1)
1998	41.4	45.2	11.2	*2.3
CI	(36.5–46.2)	(39.5–50.8)	(8.0–14.4)	*(1.0–3.5)
1997	39.0	42.8	15.2	*3.0
CI	(33.7–44.4)	(37.8–47.9)	(10.9–19.4)	*(1.4–4.5)
Marital Status
Married
2006	32.4	41.6	22.0	4.1
CI	(30.7–34.1)	(40.0–43.1)	(20.6–23.3)	(3.5–4.7)
2005	32.2	41.9	22.0	3.9
CI	(30.9–33.5)	(40.6–43.2)	(20.9–23.1)	(3.5–4.4)
2004	32.8	43.5	20.2	3.5
CI	(31.5–34.2)	(42.2–44.7)	(19.2–21.3)	(3.0–3.9)
2003	32.8	41.9	20.9	4.4
CI	(31.5–34.1)	(40.6–43.2)	(19.8–22.0)	(3.8–5.0)
2002	30.9	44.0	20.8	4.3
CI	(29.5–32.2)	(42.6–45.4)	(19.7–21.9)	(3.7–4.8)
2001	31.7	43.1	20.8	4.4
CI	(30.5–32.9)	(41.9–44.3)	(19.7–21.8)	(3.9–5.0)
2000	32.7	43.8	19.9	3.7
CI	(31.5–33.9)	(42.5–45.0)	(18.9–20.9)	(3.2–4.1)
1999	31.0	43.5	21.1	4.4
CI	(29.7–32.2)	(42.1–44.9)	(19.9–22.3)	(3.9–5.0)
1998	31.6	43.0	21.0	4.4
CI	(30.5–32.8)	(41.8–44.2)	(20.0–22.0)	(3.8–4.9)
1997	29.6	44.8	20.8	4.8
CI	(28.5–30.6)	(43.6–45.9)	(19.9–21.8)	(4.4–5.3)
Live w/partner
2006	22.8	44.8	24.5	7.8
CI	(18.4–27.3)	(40.4–49.3)	(20.4–28.6)	(5.4–10.4)
2005	20.6	44.0	27.4	8.0
CI	(17.5–23.8)	(40.0–48.0)	(23.9–30.8)	(6.0–10.0)
2004	21.9	43.8	26.2	8.1
CI	(18.4–25.3)	(39.9–47.7)	(22.7–29.8)	(5.9–10.2)
2003	18.7	42.9	27.9	10.5
CI	(15.2–22.2)	(38.9–46.9)	(24.2–31.7)	(7.9–13.1)
2002	19.5	40.9	28.2	11.4
CI	(16.3–22.8)	(37.0–44.8)	(24.2–32.2)	(8.8–13.9)
2001	17.8	49.0	25.0	8.2
CI	(14.9–20.7)	(45.3–52.6)	(21.7–28.3)	(6.3–10.2)
2000	18.3	43.1	29.6	9.0
CI	(15.2–21.4)	(38.7–47.5)	(25.5–33.7)	(6.7–11.2)
1999	15.8	46.8	27.4	9.9
CI	(13.0–18.6)	(42.2–51.3)	(23.7–31.2)	(7.4–12.5)
1998	17.2	45.0	27.6	10.2
CI	(13.9–20.5)	(40.5–49.5)	(23.6–31.6)	(7.6–12.8)
1997	18.6	42.2	27.6	11.5
CI	(15.7–21.6)	(38.3–46.1)	(23.8–31.5)	(8.9–14.2)
Never married
2006	34.0	37.5	21.5	7.0
CI	(31.5–36.5)	(34.9–40.2)	(19.5–23.5)	(5.7–8.3)
2005	34.0	35.7	22.1	8.3
CI	(31.5–36.4)	(33.5–37.9)	(20.3–23.9)	(7.0–9.5)
2004	34.0	36.7	21.6	7.8
CI	(31.5–36.4)	(34.6–38.9)	(19.5–23.6)	(6.5–9.0)
2003	33.3	38.0	21.7	7.0
CI	(31.0–35.5)	(35.7–40.3)	(19.9–23.6)	(5.9–8.1)
2002	30.0	38.1	24.3	7.6
CI	(27.9–32.2)	(35.8–40.4)	(22.3–26.3)	(6.4–8.8)
2001	30.7	38.4	24.0	6.9
CI	(28.6–32.8)	(36.5–40.4)	(22.3–25.6)	(5.8–8.0)
2000	32.0	39.1	22.0	6.8
CI	(29.9–34.2)	(37.0–41.2)	(20.2–23.9)	(5.9–7.8)
1999	30.7	38.9	23.1	7.3
CI	(28.6–32.9)	(36.7–41.0)	(21.2–24.9)	(6.2–8.5)
1998	30.4	40.1	22.9	6.6
CI	(28.2–32.7)	(37.7–42.5)	(21.2–24.6)	(5.6–7.6)
1997	31.4	39.5	22.2	6.8
CI	(29.3–33.6)	(37.5–41.6)	(20.6–23.9)	(5.7–8.0)
Divorced/Separated
2006	31.4	34.9	24.6	9.1
CI	(28.4–34.3)	(31.8–37.9)	(22.0–27.3)	(7.1–11.1)
2005	30.0	37.3	23.5	9.2
CI	(27.6–32.3)	(34.8–39.9)	(21.4–25.6)	(7.7–10.7)
2004	28.6	39.0	23.9	8.6
CI	(26.1–31.0)	(36.5–41.5)	(21.7–26.0)	(7.2–9.9)
2003	30.3	36.8	24.6	8.2
CI	(28.0–32.7)	(34.4–39.3)	(22.5–26.7)	(6.8–9.6)
2002	27.4	38.2	25.2	9.1
CI	(24.9–29.9)	(35.7–40.8)	(23.0–27.4)	(7.7–10.5)
2001	28.2	36.3	25.4	10.1
CI	(25.8–30.5)	(33.8–38.8)	(23.3–27.5)	(8.4–11.8)
2000	28.6	39.6	22.9	8.8
CI	(25.9–31.3)	(37.2–42.1)	(20.7–25.1)	(7.4–10.3)
1999	26.8	38.9	23.8	10.5
CI	(24.4–29.2)	(36.3–41.6)	(21.7–25.8)	(8.8–12.2)
1998	26.8	39.6	25.1	8.6
CI	(24.4–29.2)	(37.1–42.1)	(23.0–27.1)	(7.1–10.0)
1997	26.0	38.2	26.0	9.8
CI	(23.7–28.3)	(35.8–40.7)	(23.6–28.3)	(8.3–11.2)
Widowed
2006	47.8	33.1	14.0	*5.1
CI	(41.7–54.0)	(27.5–38.7)	(10.2–17.8)	*(2.2–8.0)
2005	51.2	28.0	17.2	*3.6
CI	(46.6–55.9)	(23.9–32.1)	(13.6–20.7)	*(2.0–5.1)
2004	47.0	31.5	16.0	5.6
CI	(42.5–51.4)	(27.2–35.8)	(12.6–19.3)	(3.6–7.6)
2003	51.0	30.8	14.3	*3.8
CI	(46.3–55.8)	(26.4–35.2)	(11.3–17.3)	*(2.0–5.6)
2002	45.1	30.0	20.0	*4.9
CI	(40.5–49.7)	(26.1–33.9)	(16.3–23.8)	*(2.8–7.0)
2001	47.0	30.5	17.0	*5.5
CI	(42.7–51.2)	(26.7–34.4)	(13.8–20.3)	*(3.2–7.8)
2000	48.6	32.7	15.1	*3.6
CI	(43.9–53.2)	(28.5–36.9)	(12.2–18.1)	*(2.0–5.2)
1999	49.0	29.6	16.6	*4.8
CI	(44.3–53.6)	(25.4–33.8)	(13.0–20.2)	*(2.8–6.9)
1998	48.4	30.0	16.8	4.9
CI	(44.0–52.7)	(25.8–34.2)	(13.6–20.0)	(3.0–6.7)
1997	46.1	30.5	17.6	5.8
CI	(41.8–50.3)	(26.6–34.5)	(14.1–21.0)	(3.8–7.8)
Region
Northeast
2006	25.2	44.1	25.2	5.4
CI	(22.4–28.1)	(41.7–46.5)	(22.5–28.0)	(4.4–6.5)
2005	26.0	45.2	24.2	4.6
CI	(23.6–28.5)	(42.7–47.7)	(22.1–26.3)	(3.5–5.6)
2004	26.6	45.7	23.2	4.5
CI	(24.7–28.5)	(43.5–47.9)	(21.0–25.3)	(3.5–5.5)
2003	26.2	44.9	23.8	5.1
CI	(24.4–28.1)	(42.6–47.2)	(21.8–25.8)	(4.1–6.1)
2002	24.8	44.9	24.8	5.5
CI	(22.8–26.9)	(42.6–47.2)	(22.9–26.7)	(4.5–6.5)
2001	26.1	44.1	24.3	5.6
CI	(24.0–28.2)	(41.8–46.3)	(22.3–26.2)	(4.3–6.8)
2000	26.6	45.1	23.6	4.6
CI	(24.3–28.9)	(43.0–47.2)	(21.4–25.9)	(3.7–5.6)
1999	22.6	45.6	26.6	5.2
CI	(21.0–24.3)	(43.4–47.9)	(24.1–29.1)	(4.2–6.1)
1998	24.2	47.5	24.3	4.0
CI	(22.2–26.3)	(45.2–49.8)	(22.1–26.5)	(3.1–4.8)
1997	25.2	45.7	24.4	4.7
CI	(23.4–27.1)	(43.6–47.7)	(22.6–26.3)	(4.0–5.5)
Midwest
2006	29.2	42.1	22.7	6.0
CI	(26.7–31.7)	(39.6–44.6)	(20.6–24.8)	(4.8–7.1)
2005	28.2	42.6	22.8	6.4
CI	(26.3–30.1)	(40.8–44.4)	(21.2–24.5)	(5.4–7.3)
2004	28.0	42.4	23.3	6.2
CI	(25.8–30.3)	(40.6–44.3)	(21.6–25.0)	(5.2–7.2)
2003	30.0	41.6	22.3	6.1
CI	(27.7–32.2)	(39.6–43.6)	(20.4–24.2)	(5.1–7.1)
2002	25.4	44.2	24.6	5.8
CI	(23.2–27.5)	(42.1–46.3)	(22.6–26.6)	(4.8–6.9)
2001	27.8	42.3	24.4	5.6
CI	(25.8–29.7)	(40.2–44.3)	(22.8–26.1)	(4.5–6.6)
2000	28.5	44.8	21.5	5.2
CI	(26.5–30.5)	(42.7–46.9)	(19.7–23.3)	(4.4–6.0)
1999	28.1	43.8	22.0	6.0
CI	(26.2–30.1)	(41.6–46.1)	(20.4–23.6)	(5.1–7.0)
1998	27.4	43.7	23.4	5.5
CI	(25.5–29.3)	(41.8–45.6)	(21.8–25.0)	(4.8–6.3)
1997	26.2	45.3	22.0	6.6
CI	(24.6–27.7)	(43.5–47.2)	(20.5–23.4)	(5.8–7.3)
South
2006	37.4	36.1	21.1	5.4
CI	(35.1–39.6)	(34.1–38.2)	(19.4–22.8)	(4.4–6.4)
2005	39.3	35.0	19.8	5.9
CI	(37.3–41.3)	(33.4–36.5)	(18.4–21.2)	(5.1–6.6)
2004	38.0	38.6	18.3	5.1
CI	(36.0–39.9)	(37.0–40.2)	(16.8–19.7)	(4.4–5.8)
2003	37.5	37.1	19.6	5.8
CI	(35.8–39.1)	(35.7–38.6)	(18.3–20.9)	(5.0–6.6)
2002	35.6	38.5	19.5	6.4
CI	(34.0–37.3)	(36.8–40.2)	(18.1–20.8)	(5.5–7.3)
2001	35.8	39.5	18.7	5.9
CI	(34.3–37.4)	(38.0–40.9)	(17.5–19.9)	(5.2–6.6)
2000	37.1	38.4	19.0	5.5
CI	(35.5–38.7)	(37.0–39.9)	(17.7–20.2)	(4.9–6.1)
1999	36.5	38.3	19.4	5.8
CI	(34.5–38.4)	(36.6–40.0)	(18.1–20.7)	(5.0–6.6)
1998	37.2	37.6	19.0	6.2
CI	(35.4–39.0)	(36.1–39.2)	(17.8–20.1)	(5.4–7.1)
1997	35.3	38.2	20.4	6.0
CI	(33.8–36.9)	(36.9–39.6)	(19.0–21.7)	(5.4–6.7)
West
2006	33.1	41.2	20.5	5.2
CI	(30.6–35.6)	(38.8–43.6)	(18.5–22.6)	(4.0–6.4)
2005	29.7	40.4	24.7	5.2
CI	(27.8–31.6)	(38.3–42.5)	(22.8–26.6)	(4.3–6.1)
2004	32.7	40.9	21.6	4.8
CI	(30.4–35.0)	(38.7–43.0)	(19.4–23.7)	(3.9–5.8)
2003	31.9	40.4	22.5	5.2
CI	(29.9–33.9)	(38.5–42.4)	(20.8–24.2)	(4.1–6.2)
2002	30.0	41.6	23.1	5.3
CI	(27.1–33.0)	(39.1–44.0)	(21.0–25.2)	(4.3–6.3)
2001	29.0	42.0	23.2	5.7
CI	(27.1–30.9)	(40.4–43.7)	(21.6–24.9)	(4.8–6.6)
2000	31.1	42.2	21.9	4.8
CI	(28.9–33.3)	(40.0–44.4)	(20.1–23.7)	(4.0–5.6)
1999	27.8	42.6	22.7	6.9
CI	(25.8–29.8)	(40.6–44.5)	(20.6–24.9)	(5.7–8.0)
1998	29.3	41.7	23.3	5.7
CI	(27.4–31.1)	(39.7–43.8)	(21.7–24.9)	(4.9–6.5)
1997	27.7	43.9	21.7	6.7
CI	(25.9–29.5)	(41.7–46.1)	(19.9–23.4)	(5.7–7.7)
Employment Status
Employed
2006	28.0	43.0	23.2	5.7
CI	(26.6–29.4)	(41.6–44.4)	(22.0–24.5)	(5.1–6.4)
2005	27.0	43.2	24.3	5.5
CI	(25.9–28.2)	(42.0–44.3)	(23.2–25.3)	(5.0–6.0)
2004	27.7	44.1	22.8	5.4
CI	(26.4–29.0)	(42.9–45.2)	(21.7–23.9)	(4.9–5.9)
2003	27.2	43.5	23.7	5.7
CI	(26.1–28.2)	(42.3–44.6)	(22.7–24.7)	(5.2–6.3)
2002	25.0	45.1	24.0	5.8
CI	(23.8–26.3)	(43.9–46.4)	(23.0–25.1)	(5.3–6.3)
2001	25.6	45.1	23.5	5.8
CI	(24.5–26.6)	(44.0–46.2)	(22.6–24.5)	(5.3–6.4)
2000	26.9	45.2	22.8	5.1
CI	(25.8–28.0)	(44.1–46.4)	(21.8–23.8)	(4.6–5.5)
1999	24.9	45.3	23.9	6.0
CI	(23.7–26.0)	(44.1–46.4)	(22.8–24.9)	(5.4–6.5)
1998	26.0	45.0	23.4	5.6
CI	(24.9–27.1)	(43.8–46.1)	(22.4–24.3)	(5.2–6.1)
1997	24.2	46.2	23.5	6.2
CI	(23.3–25.0)	(45.1–47.3)	(22.6–24.4)	(5.7–6.6)
Unemployed
2006	30.9	39.9	22.6	6.5
CI	(24.0–37.9)	(33.7–46.2)	(17.3–28.0)	(3.8–9.2)
2005	31.2	38.1	21.4	9.4
CI	(26.1–36.2)	(32.6–43.6)	(16.9–25.8)	(5.9–12.8)
2004	25.6	47.2	22.3	5.0
CI	(20.8–30.3)	(41.8–52.5)	(17.3–27.3)	(2.9–7.1)
2003	30.4	39.9	21.6	8.0
CI	(25.7–35.0)	(35.4–44.4)	(17.6–25.7)	(5.3–10.8)
2002	26.1	38.2	26.8	8.9
CI	(21.8–30.3)	(33.4–43.1)	(22.5–31.2)	(6.6–11.1)
2001	25.4	44.0	21.5	9.1
CI	(21.3–29.5)	(38.2–49.9)	(16.8–26.1)	(6.2–12.0)
2000	28.7	42.5	18.4	10.4
CI	(22.9–34.6)	(36.2–48.9)	(13.9–22.9)	(6.8–13.9)
1999	31.6	36.3	23.9	8.1
CI	(25.3–37.9)	(30.1–42.6)	(18.2–29.7)	(5.2–11.0)
1998	25.5	41.4	25.5	7.6
CI	(20.3–30.6)	(35.8–47.0)	(20.4–30.6)	(4.6–10.6)
1997	25.0	38.9	28.0	8.0
CI	(20.0–30.1)	(34.0–43.9)	(22.8–33.3)	(5.5–10.5)
Not in labor force
2006	47.1	30.3	18.1	4.6
CI	(44.6–49.7)	(28.0–32.5)	(16.3–19.8)	(3.5–5.6)
2005	48.9	29.4	16.7	5.0
CI	(46.8–50.9)	(27.8–31.1)	(15.2–18.2)	(4.1–5.9)
2004	48.4	31.8	15.3	4.4
CI	(46.5–50.4)	(30.0–33.7)	(14.0–16.6)	(3.6–5.2)
2003	49.5	30.6	15.3	4.6
CI	(47.6–51.5)	(28.8–32.3)	(13.8–16.8)	(3.7–5.5)
2002	47.0	31.3	16.3	5.4
CI	(44.9–49.1)	(29.4–33.3)	(14.6–17.9)	(4.4–6.4)
2001	48.6	29.2	17.4	4.8
CI	(46.7–50.4)	(27.5–31.0)	(15.9–18.8)	(4.0–5.6)
2000	47.6	31.9	16.1	4.4
CI	(45.6–49.7)	(30.1–33.6)	(14.6–17.6)	(3.6–5.2)
1999	46.4	32.1	16.4	5.1
CI	(44.4–48.5)	(30.1–34.1)	(14.8–18.0)	(4.2–6.0)
1998	46.1	32.1	16.9	4.9
CI	(44.1–48.1)	(30.3–33.9)	(15.5–18.4)	(4.1–5.7)
1997	46.8	31.8	16.0	5.4
CI	(44.9–48.7)	(30.1–33.5)	(14.7–17.3)	(4.6–6.2)
Income
$1–9,999
2006	36.6	37.9	17.5	8.0
CI	(31.8–41.5)	(33.6–42.3)	(14.2–20.8)	(4.5–11.4)
2005	34.7	38.0	20.9	6.4
CI	(30.6–38.8)	(33.9–42.1)	(17.7–24.0)	(4.4–8.4)
2004	33.9	37.0	18.9	10.2
CI	(29.6–38.3)	(32.9–41.1)	(15.6–22.3)	(7.6–12.7)
2003	35.8	37.8	19.0	7.3
CI	(31.5–40.1)	(33.7–42.0)	(15.8–22.3)	(5.2–9.5)
2002	34.6	35.6	22.4	7.4
CI	(30.8–38.4)	(31.8–39.5)	(19.1–25.7)	(5.3–9.4)
2001	33.7	38.5	20.9	7.0
CI	(29.9–37.5)	(34.9–42.1)	(18.0–23.7)	(4.9–9.0)
2000	37.4	35.3	20.1	7.1
CI	(33.1–41.8)	(31.5–39.2)	(17.1–23.2)	(5.1–9.1)
1999	29.4	39.2	22.1	9.2
CI	(26.0–32.9)	(35.5–42.9)	(19.3–25.0)	(7.0–11.4)
1998	34.6	39.3	19.0	7.0
CI	(31.0–38.2)	(35.8–42.9)	(16.4–21.7)	(5.3–8.8)
1997	34.5	40.6	18.8	6.2
CI	(31.3–37.8)	(37.7–43.4)	(16.5–21.0)	(4.7–7.6)
$10–19,999
2006	30.1	40.9	22.7	6.4
CI	(26.0–34.2)	(36.7–45.1)	(19.3–26.1)	(4.5–8.2)
2005	30.7	40.8	21.1	7.4
CI	(27.7–33.6)	(37.7–44.0)	(18.3–23.9)	(5.6–9.2)
2004	31.1	41.1	21.0	6.8
CI	(27.9–34.3)	(37.6–44.6)	(18.2–23.7)	(5.3–8.3)
2003	29.8	41.3	21.0	7.9
CI	(26.9–32.8)	(37.8–44.8)	(18.4–23.6)	(6.1–9.6)
2002	27.6	40.1	22.9	9.4
CI	(24.6–30.6)	(36.5–43.7)	(19.8–26.0)	(7.2–11.6
2001	28.6	40.2	24.0	7.1
CI	(25.8–31.5)	(37.0–43.5)	(21.1–26.9)	(5.6–8.5)
2000	32.4	41.0	20.0	6.6
CI	(29.2–35.6)	(37.8–44.3)	(17.2–22.7)	(5.1–8.1)
1999	29.1	41.6	21.8	7.5
CI	(26.0–32.2)	(38.3–44.8)	(19.1–24.5)	(5.7–9.3)
1998	28.8	42.1	21.6	7.5
CI	(25.8–31.8)	(39.1–45.1)	(19.0–24.2)	(5.9–9.2)
1997	26.0	43.4	22.5	8.0
CI	(23.7–28.3)	(40.9–46.1)	(20.1–24.9)	(6.6–9.5)
$20–34,999
2006	28.7	42.6	22.0	6.6
CI	(25.9–31.5)	(39.7–45.6)	(19.4–24.6)	(4.8–8.4)
2005	25.8	42.1	23.7	8.4
CI	(23.7–27.9)	(39.5–44.6)	(21.5–26.0)	(7.1–9.6)
2004	25.6	45.1	22.5	6.8
CI	(23.2–28.0)	(42.4–47.8)	(20.3–24.6)	(5.5–8.1)
2003	26.6	41.3	23.8	8.3
CI	(24.5–28.8)	(38.8–43.7)	(21.6–26.1)	(6.8–9.7)
2002	26.3	43.1	23.0	7.6
CI	(24.1–28.4)	(40.6–45.6)	(21.0–25.0)	(6.4–8.8)
2001	26.0	43.0	23.7	7.4
CI	(23.8–28.1)	(40.6–45.5)	(21.6–25.7)	(6.1–8.6)
2000	24.2	45.9	24.1	5.8
CI	(22.2–26.2)	(43.6–48.2)	(22.1–26.1)	(4.8–6.8)
1999	23.1	45.4	25.0	6.5
CI	(21.0–25.1)	(43.0–47.9)	(22.8–27.1)	(5.4–7.6)
1998	25.6	45.2	23.1	6.2
CI	(23.6–27.5)	(43.1–47.3)	(21.3–24.9)	(5.1–7.2)
1997	23.5	45.2	24.3	7.0
CI	(21.8–25.2)	(43.1–47.3)	(22.6–26.0)	(6.0–8.0)
$35–54,999
2006	25.7	44.4	23.3	6.6
CI	(23.0–28.4)	(41.4–47.4)	(20.9–25.7)	(5.2–8.1)
2005	24.4	44.2	26.0	5.4
CI	(22.1–26.7)	(41.4–46.9)	(23.6–28.4)	(4.4–6.4)
2004	24.1	45.6	24.8	5.5
CI	(21.7–26.6)	(43.1–48.1)	(22.5–27.1)	(4.5–6.5)
2003	25.2	45.0	24.1	5.7
CI	(23.0–27.4)	(42.2–47.7)	(21.9–26.4)	(4.5–6.9)
2002	22.8	44.4	27.4	5.5
CI	(20.5–25.0)	(41.9–46.8)	(25.2–29.5)	(4.6–6.4)
2001	22.4	47.1	24.1	6.4
CI	(20.4–24.4)	(44.8–49.4)	(22.2–26.0)	(5.3–7.6)
2000	24.0	46.8	24.7	4.5
CI	(22.0–26.0)	(44.3–49.3)	(22.6–26.8)	(3.5–5.5)
1999	21.4	46.6	25.7	6.2
CI	(19.2–23.6)	(44.1–49.2)	(23.4–28.1)	(5.0–7.4)
1998	20.5	47.8	26.7	5.1
CI	(18.6–22.4)	(45.5–50.1)	(24.5–28.8)	(4.0–6.1)
1997	20.0	48.7	25.2	6.1
CI	(18.1–21.9)	(46.3–51.2)	(23.1–27.2)	(5.1–7.1)
$55,000 & up
2006	18.5	46.9	30.2	4.4
CI	(16.0–21.0)	(43.9–50.0)	(27.2–33.2)	(3.3–5.5)
2005	16.0	48.5	30.9	4.5
CI	(14.3–17.8)	(46.0–51.0)	(28.5–33.4)	(3.5–5.5)
2004	18.8	49.7	27.2	4.2
CI	(16.8–20.8)	(47.2–52.2)	(25.0–29.5)	(3.2–5.3)
2003	18.8	48.3	28.7	4.2
CI	(16.5–21.1)	(45.2–51.3)	(26.2–31.3)	(3.2–5.2)
2002	16.1	51.4	27.7	4.8
CI	(14.0–18.1)	(48.6–54.2)	(25.2–30.2)	(3.7–5.9)
2001	16.6	50.8	29.0	3.7
CI	(14.7–18.5)	(48.2–53.4)	(26.7–31.2)	(2.7–4.7)
2000	17.2	51.6	27.7	3.5
CI	(15.0–19.4)	(49.0–54.2)	(25.1–30.3)	(2.6–4.4)
1999	16.2	48.5	30.7	4.5
CI	(14.2–18.3)	(45.3–51.7)	(27.8–33.6)	(3.4–5.7)
1998	16.3	49.5	29.8	4.4
CI	(14.1–18.6)	(46.8–52.2)	(27.1–32.4)	(3.2–5.7)
1997	15.2	50.3	29.3	5.2
CI	(13.2–17.2)	(47.4–53.2)	(26.7–31.9)	(4.2–6.3)

Estimates calculated by the Alcohol Epidemiologic Data System of the National Institute on Alcohol Abuse and Alcoholism, December 2007.

Definitions:

Abstainer: fewer than 12 drinks in lifetime or no drinks in the past year.

Light drinker: on average, 3 or fewer drinks per week in the past year.

Moderate drinker: on average, more than 3 drinks but no more than 7 drinks per week for women and no more than 14 drinks per week for men in the past year.

Heavier drinker: on average, more than one drink per day for women and more than two drinks per day for men in the past year.

Asterisk (*) indicates there are fewer than 30 respondents in the category.

CI indicates 95-percent confidence interval.

Sources: Centers for Disease Control and Prevention (CDC), National Center for Health Statistics, National Health Interview Survey, 1997–2006. Data from the CDC ftp site (ftp://ftp.cdc.gov/pub/Health_Statistics/NCHS/Datasets/NHIS).