Volume 211 - Issue 8

Baby boomers and booze: we should be worried about how older Australians are drinking

Authors:  Ann M Roche and Victoria Kostadinov

Med J Aust 2019; 211 (8): 382-382.e1. || doi: 10.5694/mja2.50351
Published online: 21 October 2019

In reply

In reply: We acknowledge the importance of statistical precision and appropriateness, especially when dealing with large samples, as highlighted by Roselli in his comment on our report on alcohol use by older people.1 In our study, we used weighted Ns to correct for under‐represented groups in the sample. The use of relative weighting procedures for this purpose is well established. However, we appreciate that use of absolute weightings can result in an artificially large sample size.

We note that in conducting work similar to our research, using an independent data source from a single jurisdiction (Queensland), Roselli identified findings broadly consistent with our own. As with other similar studies overseas, these findings provide further support for our central observations regarding alcohol use trends among older people. We have subsequently re‐examined our data using non‐weighted Ns (Box) and found significant decreases between 2004 and 2016 for low risk drinkers, and significant increases in the same period for high risk drinkers among Australians aged 50 years or more. When risky and high risk drinkers were combined, this group also increased significantly over time (Box). These findings and other similar reported studies offer confidence that the conclusions of our original study remain valid, correct and important.

Box – χ2 Test for trend 2004–2016 using non‐weighted Ns

Older Australians' (aged ≥ 50 years) consumption pattern

2004

2007

2010

2013

2016

Pearson χ2

P


Abstainers

2416

2209

2541

2420

2588

8.22

0.084

Low risk

7655

6737

7726

7106

7343

22.64

< 0.001

Risky

1558

1391

1627

1561

1604

2.54

0.638

High risk

231

246

347

280

351

31.71

< 0.001

Risky + high risk

1789

1637

1974

1841

1955

11.24

0.024


 


Authors


Competing interests


References


Linked content

  • MJA Research Letter: Baby boomers and booze: we should be worried about how older Australians are drinking

  • MJA Letter: Baby boomers and booze: we should be worried about how older Australians are drinking