Assessing the relationship between ad volume and awareness of a tobacco education media campaign.
BACKGROUND
The relation between aided ad recall and level of television ad placement in a public health setting is not well established. We examine this association by looking back at 8 years of the California's Tobacco Control Program's (CTCP) media campaign.


METHODS
Starting in July 2001, California's campaign was continuously monitored using five telephone series of surveys and six web-based series of surveys immediately following a media flight. We used population-based statewide surveys to measure aided recall for advertisements that were placed in each of these media flights. Targeted rating points (TRPs) were used to measure ad placement intensity throughout the state.


RESULTS
Cumulative TRPs exhibited a stronger relation with aided ad recall than flight TRPs or TRP density. This association increased after log-transforming cumulative TRP values. We found that a one-unit increase in log-cumulative TRPs led to a 13.6% increase in aided ad recall using web-based survey data, compared to a 5.3% increase in aided ad recall using telephone survey data.


CONCLUSIONS
In California, the relation between aided ad recall and cumulative TRPs showed a diminishing return after a large volume of ad placements These findings may be useful in planning future ad placement for CTCP's media campaign.
Cowling
David W
DW
California Department of Public Health, California Tobacco Control Program, P.O. Box 997377, MS 7206, Sacramento, CA 95899-7377, USA. david.cowling@cdph.ca.gov
Modayil
Mary V
MV
Stevens
Colleen
C
D000329:Advertising; D002140:California; D003625:Data Collection; D006266:Health Education; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D020407:Internet; D008402:Mass Media; D012907:Smoking; D013689:Telephone; D062789:Tobacco Products
Public Health Rep. 1993 Jul-Aug;108(4):510-3
8341788
J Health Commun. 2002 Oct-Dec;7(5):445-53
12455763
Prev Med. 2005 Aug;41(2):503-10
15917046
Cochrane Database Syst Rev. 2008 Jan 23;(1):CD004704
18254058
Tob Control. 2001 Mar;10(1):9-15
11226354
Am J Public Health. 2002 Jun;92(6):901-7
12036775
Ethn Health. 2007 Sep;12(4):339-62
17701761
Prev Med. 1997 May-Jun;26(3):389-94
9144764
Health Educ Res. 2002 Feb;17(1):85-98
11888047
J Health Commun. 2005 Oct-Nov;10(7):635-50
16278200
Health Educ Res. 2009 Feb;24(1):42-8
18203679
Prev Med. 2002 Nov;35(5):511-8
12431900
J Stud Alcohol. 2003 May;64(3):331-41
12817821
Am J Public Health. 1990 May;80(5):565-9
2327533
Tob Control. 2000 Sep;9(3):273-82
10982571
Am J Public Health. 1995 Sep;85(9):1218-22
7661228
Am J Public Health. 2000 Mar;90(3):380-6
10705855
Res Social Adm Pharm. 2005 Jun;1(2):331-47
17138481
Health Educ Res. 2006 Jun;21(3):348-54
16740679
Am J Public Health. 1999 Mar;89(3):346-50
10076483
Am J Prev Med. 2006 Mar;30(3):217-24
16476637
Health Educ Res. 1997 Jun;12(2):227-36
10168574
Am J Public Health. 1994 Jul;84(7):1148-50
8017542
Am J Prev Med. 2001 Feb;20(2 Suppl):16-66
11173215
Nicotine Tob Res. 2007 Dec;9(12):1287-96
18058347
Am J Public Health. 1995 Feb;85(2):183-92
7856777
J Stud Alcohol. 2006 Nov;67(6):868-79
17061004
Am J Public Health. 2008 Aug;98(8):1443-50
18556601
Am J Public Health. 2005 Mar;95(3):425-31
15727971
Arch Pediatr Adolesc Med. 2005 Jul;159(7):639-45
15996997
JAMA. 1998 Sep 9;280(10):893-9
9739973
Tob Control. 2003 Sep;12 Suppl 2:ii40-4
12878772
Am J Public Health. 1992 Jun;82(6):827-34
1585963
Annu Rev Public Health. 2008;29:219-34
18173391
Cancer. 1998 Dec 15;83(12 Suppl Robert):2736-41
9874388
Tob Control. 2005 Aug;14(4):284-6
16046693
Am J Prev Med. 1994 Nov-Dec;10(6):319-26
7880550
Am J Public Health. 2008 May;98(5):916-24
18381998