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. Author manuscript; available in PMC: 2018 May 1.
Published in final edited form as: Alcohol Clin Exp Res. 2017 Mar 24;41(5):976–986. doi: 10.1111/acer.13365

Table 4.

Trends in Average Volumea Among Male and Female Current Drinkersb Ages 60 Years and Older Based on Average Annual Percent Change (AAPC): National Health Interview Survey, United States, 1997–2014

Men
Women
Average Volumea Years
{mean}c
AAPCd 95% CI p Years
{mean}c
AAPCd 95% CI p
Age 60+ 1997–2014
{0.8–0.7}
−0.5 (−1.1, 0.2) 0.16 1997–2014
{0.4–0.4}
0.4 (−0.2, 1.1) 0.16
By Age Group
60–64 1997–2014
{0.9–0.7}
−0.8 (−1.7, 0.1) 0.06 1997–2014
{0.4–0.4}
0.4 (−0.6, 1.4) 0.38
65–69 1997–2014
{0.8–0.8}
0.0 (−0.9, 0.9) 0.98 1997–2014
{0.4–0.4}
0.3 (−0.7, 1.3) 0.54
70–74 1997–2014
{0.8–0.8}
−0.3 (−1.4, 0.8) 0.55 1997–2014
{0.3–0.4}
0.6 (−0.6, 1.8) 0.33
75–79 1997–2014
{0.7–0.7}
−0.3 (−1.9, 1.4) 0.75 1997–2014
{0.4–0.4}
0.8 (−0.2, 1.9) 0.11
80+ 1997–2014
{0.6–0.5}
−0.4 (−1.7, 1.0) 0.57 1997–2014
{0.3–0.4}
0.7 (−0.4, 1.8) 0.18
By Birth Cohort
<1925 1997–2008
{0.7–0.6}
−2.5 (−4.3, −0.5) 0.02 1997–2008
{0.3–0.4}
1.7 (−0.2, 3.7) 0.08
1925–1935 1997–2014
{0.9–0.6}
−1.8 (−2.6, -1.1) 0.0001 1997–2014
{0.4–0.4}
−0.4 (−1.3, 0.5) 0.33
1936–1945 1997–2014
{0.8–0.7}
−0.7 (−1.3, −0.1) 0.03 1997–2014
{0.4–0.4}
0.9 (−0.2, 2.1) 0.11
1946–1954 2006–2014
{0.8–0.7}
−1.8 (−6.0, 2.5) 0.35 2006–2014
{0.4–0.4}
1.9 (−1.6, 5.6) 0.24

Note. CI = confidence interval; p = p-value for trend

a

Average volume: drinks per day.

b

Current drinking: 12 or more drinks in any 1 year or in their lifetime and had consumed one or more drinks in the past year.

c

Years = range of years covered by trend and {%} = prevalence (or percentage) corresponding to the initial and last years covered by the trend.

d

AAPC is presented for overall trends, which include only single segments. Because there are no joinpoints, AAPC is identical to Annual Percent Change (APC).