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. 2024 Dec 9;19(12):e0313599. doi: 10.1371/journal.pone.0313599

Table 2. Mean number of days of alcohol consumption past week and percentage of heavy episodic drinking of Optimise participants, Victoria, Australia, N = 688.

Demographic Alcohol consumption Heavy episodic drinking
Mean (SD) Number of surveys* Yes (%) Number of surveys*
Total 1.65 (1.95)
Median = 1.00
10,870 1,659 (15.2%) 10,846
Year of survey completion
2020 1.92 (1.92) 531 135 (25.4%) 532
2021 1.72 (1.95) 5,836 931 (16.0%) 5,820
2022 1.54 (1.94) 4,503 588 (13.1%) 4,494
Age group, years
18–24 1.21 (1.48) 1,598 381 (23.8%) 1,600
25–34 1.28 (1.54) 2,130 397 (18.7%) 2,128
35–44 1.58 (2.00) 1,558 265 (17.0%) 1,556
45–54 1.86 (2.05) 1,717 304 (17.7%) 1,714
55–64 1.81 (1.88) 2,059 140 (6.8%) 2,051
65+ 2.19 (2.45) 1,775 167 (9.5%) 1,764
Gender
Man 1.95 (2.01) 2,711 605 (22.3%) 2,709
Woman 1.55 (1.92) 8,032 1,034 (12.9%) 8,010
Education
High school or lower 1.51 (1.91) 1,768 322 (18.2%) 1,765
Tertiary education–TAFE/trade certificate 1.44 (1.90) 1,834 312 (17.0%) 1,831
Tertiary education—undergraduate 1.67 (1.95) 4,137 666 (16.1%) 4,132
Tertiary education—postgraduate 1.81 (1.97) 3,071 345 (11.3%) 3,059
Employment status
Full-time/Self-employed 1.83 (1.99) 3,791 751 (19.9%) 3,782
Part-time/Casual 1.51 (1.77) 3,499 525 (15.0%) 3,499
Not employed 1.21 (1.66) 1,317 231 (17.6%) 1,315
Retired 1.96 (2.29) 1,880 113 (6.1%) 1,867
Working environment
Attend workplace 1.52 (1.80) 3,315 531 (16.0%) 3,310
Work from home 1.86 (1.96) 2,168 401 (18.5%) 2,163
Both workplace and working from home 2.06 (1.99) 1,205 254 (21.1%) 1,205
Not working 1.65 (2.08) 3,197 344 (10.8%) 3,182
Place of residence
Metro 1.60 (1.92) 8,653 1,333 (15.4%) 8,634
Region 1.87 (2.06) 2,138 307 (14.4%) 2,133
Chronic condition
Yes 1.73 (2.15) 3,211 300 (9.4%) 3,202
No 1.63 (1.86) 7,519 1,343 (17.9%) 7,506
High-risk workers **
Yes 1.49 (1.84) 2,133 1,417 (16.3%) 8,700
No 1.70 (1.97) 8,718 235 (11.0%) 2,127

*Number of surveys completed during the study period

**High-risk workers: including aged care workers, hotel quarantine or COVID-19 border control workers, and healthcare workers

All demographic variables (including Age, Gender, Education, Employment status, Working environment, Place of residence, Chronic condition and high-risk workers) were measured at baseline.