National estimates of Australian gambling prevalence: findings from a dual-frame omnibus survey

Dowling, N. A., Youssef, G. J., Jackson, A. C., Pennay, D. W., Francis, K. L., Pennay, A. and Lubman, D. I. (2016) National estimates of Australian gambling prevalence: findings from a dual-frame omnibus survey. Addiction, 111 3: 420-435. doi:10.1111/add.13176


Author Dowling, N. A.
Youssef, G. J.
Jackson, A. C.
Pennay, D. W.
Francis, K. L.
Pennay, A.
Lubman, D. I.
Title National estimates of Australian gambling prevalence: findings from a dual-frame omnibus survey
Journal name Addiction   Check publisher's open access policy
ISSN 1360-0443
0965-2140
Publication date 2016-03-01
Year available 2015
Sub-type Article (original research)
DOI 10.1111/add.13176
Open Access Status DOI
Volume 111
Issue 3
Start page 420
End page 435
Total pages 16
Place of publication Chichester, West Sussex United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2016
Language eng
Formatted abstract
Background, aims and design
The increase in mobile telephone-only households may be a source of bias for traditional landline gambling prevalence surveys. Aims were to: (1) identify Australian gambling participation and problem gambling prevalence using a dual-frame (50% landline and 50% mobile telephone) computer-assisted telephone interviewing methodology; (2) explore the predictors of sample frame and telephone status; and (3) explore the degree to which sample frame and telephone status moderate the relationships between respondent characteristics and problem gambling.

Setting and participants
A total of 2000 adult respondents residing in Australia were interviewed from March to April 2013.

Measurements
Participation in multiple gambling activities and Problem Gambling Severity Index (PGSI).

Findings
Estimates were: gambling participation [63.9%, 95% confidence interval (CI) = 61.4–66.3], problem gambling (0.4%, 95% CI = 0.2–0.8), moderate-risk gambling (1.9%, 95% CI = 1.3–2.6) and low-risk gambling (3.0%, 95% CI = 2.2–4.0). Relative to the landline frame, the mobile frame was more likely to gamble on horse/greyhound races [odds ratio (OR) = 1.4], casino table games (OR = 5.0), sporting events (OR = 2.2), private games (OR = 1.9) and the internet (OR = 6.5); less likely to gamble on lotteries (OR = 0.6); and more likely to gamble on five or more activities (OR = 2.4), display problem gambling (OR = 6.4) and endorse PGSI items (OR = 2.4-6.1). Only casino table gambling (OR = 2.9) and internet gambling (OR = 3.5) independently predicted mobile frame membership. Telephone status (landline frame versus mobile dual users and mobile-only users) displayed similar findings. Finally, sample frame and/or telephone status moderated the relationship between gender, relationship status, health and problem gambling (OR = 2.9–7.6).

Conclusion
Given expected future increases in the mobile telephone-only population, best practice in population gambling research should use dual frame sampling methodologies (at least 50% landline and 50% mobile telephone) for telephone interviewing.
Keyword Cellphones
Dual-frame
Gambling
Mobile telephone
Prevalence
Problem gambling
Sampling
Surveys
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Institute for Social Science Research - Publications
Official 2016 Collection
 
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