sociodemographic and attitudinal correlates of cervical screening uptake in a national sample of...
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Social Science & Medicine 61 (2005) 2460–2465
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Sociodemographic and attitudinal correlates of cervicalscreening uptake in a national sample of women in Britain
Stephen Sutton�, Celia Rutherford
Institute of Public Health, University of Cambridge, Forvie Site, Robinson Way, Cambridge CB2 2SR, UK
Available online 18 August 2005
Abstract
Sociodemographic and attitudinal correlates of self-reported cervical screening uptake were investigated among 1307
women in the target age group who participated in two national surveys conducted in Britain in 1999. Evidence for
inequalities in screening uptake was mixed. Of the socioeconomic indicators, only age of completed full-time education
showed a significant effect in the multivariate analysis. The strong effects of car ownership and housing tenure in the
univariate analyses were eliminated by controlling for marital status, which showed a robust association with uptake.
Uptake was highest among married and separated women and lowest among single and widowed women. There was no
evidence that the effects of marital status and education were mediated by the attitudinal variables. Anticipated
embarrassment and attitudes to screening (e.g., ‘‘There’s no point going for screening if you don’t have any symptoms’’)
were significant independent predictors of uptake. These findings suggest that information campaigns need to address
feelings of embarrassment and lack of understanding of the rationale for screening and that efforts should be made to
encourage single and widowed women to attend.
r 2005 Elsevier Ltd. All rights reserved.
Keywords: Cervical screening; Socioeconomic status; Marital status; UK
Introduction
Mortality figures for the UK show a sharp gradient
towards higher mortality from cervical cancer in women
of lower socioeconomic status (SES) (Quinn, Babb,
Brock, Kirby, & Jones, 2000). Socioeconomic differ-
ences in cervical screening uptake may be one factor
contributing to this gradient (Wardle et al., 1999), and it
is therefore important to investigate the extent of, and
reasons for, such differences.
In the UK, the relationship between SES and cervical
screening coverage or uptake has been examined at three
e front matter r 2005 Elsevier Ltd. All rights reserve
cscimed.2005.07.017
ing author. Tel.: +441223 330594;
62515.
ess: [email protected] (S. Sutton).
different levels: health district (e.g., Baker & Middleton,
2003), general practice (e.g., Ibbotson, Wyke, McEwen,
Macintyre, & Kelly, 1996) and individual (e.g., Coulter
& Baldwin, 1987). This paper reports an individual level
study that differed from previous studies in examining a
range of indicators of SES, as well as other socio-
demographic variables. In addition, we included mea-
sures of women’s beliefs about cervical cancer and
cervical screening and attitudes towards screening and
health. The selection of variables was guided by the
Health Belief Model (Janz & Becker, 1984) and by
previous studies of cervical screening uptake (e.g., Bish,
Sutton, & Golombok, 2000; Orbell, Crombie, &
Johnston, 1996).
We hypothesised that any associations between socio-
demographic variables and uptake would be explained
d.
ARTICLE IN PRESSS. Sutton, C. Rutherford / Social Science & Medicine 61 (2005) 2460–2465 2461
at least in part by attitudes and beliefs. To our
knowledge, the present study is the first to estimate the
independent contributions of these different classes of
variables to cervical screening uptake in a national
sample of women in Britain.
Methods
Participants, design and procedure
Two similar surveys of adults aged 16 and over living
in private households in Britain were conducted in
March and May 1999 through the Office for National
Statistics. The response rate to both surveys was 70%.
There were 1469 women in the target age group for
cervical screening (20–64 in England and Wales; 20–60
in Scotland). Analysis was restricted to the 1307 women
who stated that they had not had a hysterectomy and
who said whether or not they had had a smear test in the
last 5 years.
Measures
(1)
Sociodemographic factors: age; marital status; re-gion; income; age completed full-time education;
social class by occupation; employment status;
number of cars; housing tenure.
(2)
Attitudes and beliefs about cervical screening:perceived effectiveness of cervical screening; per-
ceived risk of cervical cancer; worry about cervical
cancer; anticipated embarrassment and pain.
(3)
Attitudes to screening and health. Principal compo-nents analysis of responses to nine statements
yielded three components. Component I reflected
negative attitudes to screening (e.g., ‘‘There’s no
point going for screening if you don’t have
symptoms’’); component II, attitudes to health
(‘‘It’s better to live from day to day than to worry
about what might happen in 10 years’ time’’); and
component III, optimistic outlook (‘‘Where my
health’s concerned, I’m always optimistic about my
future’’).
(4)
Whether or not the respondent had had a smear testin the last 5 years (1 ¼ yes, 0 ¼ no). This was derived
from response to the question ‘‘When did you last
have a smear test. Was ity Less than 3 years ago,
3–5 years ago, 6–10 years ago, or have you never had
one?’’ Reported uptake was high (1200/1307; 92%).
Results
Five sociodemographic variables showed a significant
association with uptake in univariate logistic regression
analyses: age, marital status, age completed full-time
education, number of cars and housing tenure (Table 1).
Age showed a curvilinear effect. Of the attitude and
belief variables, perceived effectiveness, anticipated pain
and embarrassment, and the three attitudinal compo-
nents were significantly associated with uptake.
In a multiple logistic regression analysis of the
sociodemographic variables, only age, marital status
and education were significant predictors. The attenua-
tion of the effects of car access and housing tenure was
due largely to controlling for marital status. The three
significant demographic variables from this analysis
together with the attitude and belief variables that were
significant in the univariate analyses were entered in a
multiple logistic regression analysis (Table 1). The
significant predictors in this model were marital status,
age completed full-time education, perceived effective-
ness, anticipated embarrassment and the first attitudinal
component. Apart from the attenuation of the age
effect, there was little evidence that the effects of the
sociodemographic variables were mediated by the atti-
tudinal variables. It was possible to simplify the model
without significant loss of fit by dropping the third
attitudinal component and anticipated pain and repre-
senting anticipated embarrassment as a single degree of
freedom linear component (model w2 ¼ 104:83, df ¼ 18,
po0:0005).
Discussion
This study had a number of limitations. First, it used a
cross-sectional design. Second, although the response
rate was quite high (70%), we had no information about
non-responders. We therefore cannot rule out the
possibility of selection bias. Non-responders may be of
lower SES on average and may be less likely to attend for
screening. Third, the measure of behaviour was based on
self-report. It was not possible to verify self-reports
against medical records. Strengths of the study are that it
was based on a relatively large national sample and
included a range of socioeconomic indicators.
Evidence for inequalities in screening uptake was
mixed. Of the SES indicators, only education showed a
significant effect in the multivariate analyses. The strong
effects of car ownership and housing tenure in the
univariate analyses were eliminated by controlling for
marital status. By contrast, marital status itself showed a
robust association with screening uptake (cf. Orbell et
al., 1996). Marital status is related to sexual behaviours
that are well-established risk factors for cervical cancer,
in particular number of partners and age at first
intercourse (Brinton, 1992). Thus, the women who were
at lowest risk for cervical cancer (i.e., married women)
had the highest uptake of cervical screening.
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Table 1
Sociodemographic and attitudinal correlates of cervical screening uptake: summary of univariate and multivariate logistic regression analyses
Variable Categories Frequencies % Smear test Univariate analyses (N ¼ 1266� 1307) Multivariate analysis (N ¼ 1259)
p Odds ratio (95% CI) p Odds ratio (95% CI)
Sociodemographic variables
Age o0.0005 0.124
55–64 210 88.6 0.60 (0.34,1.06) 0.62 (0.28,1.34)
45–54 255 94.9 1.44 (0.73,2.83) 1.25 (0.53,2.94)
35–44 345 95.1 1.49 (0.80,2.77) 1.23 (0.61,2.49)
25–34 391 92.8 1.00 1.00
20–24 106 76.4 0.25*** (0.14,0.45) 0.50 (0.23,1.07)
Marital status o0.0005 0.007
Married 687 95.8 1.00 1.00
Cohabiting 125 90.4 0.42* (0.21,0.84) 0.48 (0.21,1.09)
Single 255 82.4 0.21*** (0.13,0.34) 0.40** (0.21,0.78)
Divorced 144 93.1 0.59 (0.28,1.24) 0.91 (0.37,2.25)
Separated 58 96.6 1.23 (0.29,5.31) 1.74 (0.29, 10.52)
Widowed 38 76.3 0.14*** (0.06,0.33) 0.20** (0.07,0.59)
Age completed full-time education 0.004 0.004
Over 25 65 95.4 1.57 (0.48,5.12) 0.58 (0.16,2.09)
19–25 267 88.4 0.58* (0.37,0.91) 0.40** (0.22,0.70)
15–18 949 92.9 1.00 1.00
Up to 14 26 76.9 0.25** (0.10,0.65) 0.27* (0.08,0.92)
Number of cars o0.0005Two or more 458 95.0 1.69* (1.01,2.83)
One 584 91.8 1.00
None 265 86.4 0.57* (0.36,0.90)
Housing tenure 0.001
Own outright 222 89.6 0.51* (0.30,0.88)
Owns mortgage 714 94.4 1.00
Rent (non-private) 245 90.2 0.55* (0.32,0.93)
Rent (private) 125 84.0 0.31*** (0.18,0.55)
Income 0.210
1st quintile 268 89.6 0.52 (0.26,1.03)
2nd quintile 233 92.3 0.73 (0.35,1.52)
3rd quintile 227 94.3 1.00
4th quintile 256 90.6 0.59 (0.29,1.18)
5th quintile 238 94.1 0.97 (0.45,2.12)
Other 85 88.2 0.46 (0.19,1.08)
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SSocial class 0.204
I 35 85.7 0.46 (0.17,1.25)
II 383 92.7 0.96 (0.57,1.63)
IIIN 454 93.0 1.00
IIIM 100 91.0 0.77 (0.35,1.66)
IV 237 91.1 0.78 (0.44,1.39)
V 54 92.6 0.95 (0.32,2.79)
Other 44 81.8 0.34* (0.15,0.80)
Employment status 0.421
In employment 855 92.5 1.00
Unemployed 46 89.1 0.66 (0.25,1.74)
Economically inactive 406 90.6 0.78 (0.52,1.19)
Region 0.742
The North 333 90.4 0.77 (0.45,1.32)
Midlands+East Anglia 345 92.5 1.00
London 157 91.1 0.83 (0.42,1.64)
South East 188 94.7 1.45 (0.68,3.07)
South West 118 90.7 0.79 (0.38,1.66)
Wales 54 92.6 1.02 (0.34,3.04)
Scotland 112 91.1 0.83 (0.39,1.78)
Attitudinal variables
Perceived effectiveness 0.005 0.048
Very effective 508 94.7 1.41 (0.86,2.29) 1.31 (0.76,2.26)
Quite effective 643 92.7 1.00 1.00
Not very effective 96 89.6 0.68 (0.33,1.39) 1.64 (0.67,3.99)
Not at all effective 19 73.7 0.22** (0.08,0.64) 0.24* (0.07,0.85)
Anticipated pain o0.0005 0.254
Not at all painful 624 95.0 1.00 1.00
A bit painful 514 91.4 0.56* (0.35,0.90) 0.59 (0.34,1.02)
Quite painful 111 87.4 0.36** (0.19,0.71) 0.91 (0.38,2.23)
Very painful 43 79.1 0.20*** (0.09,0.45) 0.59 (0.19,1.87)
Anticipated embarrassment o0.0005 0.005
Not at all embarrassing 592 95.4 1.00 1.00
A bit embarrassing 422 92.4 0.58* (0.34,0.99) 0.60 (0.33,1.09)
Quite embarrassing 145 89.0 0.39** (0.20,0.74) 0.63 (0.28,1.40)
Very embarrassing 143 79.0 0.18*** (0.10,0.31) 0.26*** (0.13,0.54)
Worry 0.252
Very worried 105 93.3 1.00 (0.43,2.31)
Quite worried 158 91.1 0.73 (0.38,1.40)
A bit worried 527 93.4 1.00
Not at all worried 514 90.1 0.65 (0.41,1.01)
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STable 1 (continued )
Variable Categories Frequencies % Smear test Univariate analyses (N ¼ 1266� 1307) Multivariate analysis (N ¼ 1259)
p Odds ratio (95% CI) p Odds ratio (95% CI)
Perceived risk 0.299
Much higher 21 90.5 0.78 (0.18,3.43)
Higher 49 93.9 1.26 (0.38,4.17)
A bit higher 101 93.1 1.10 (0.49,2.49)
About the same 790 92.4 1.00
A bit lower 157 93.6 1.21 (0.60,2.41)
Lower 114 86.8 0.54* (0.30,0.99)
Much lower 51 86.3 0.52 (0.22,1.20)
Attitude component I (five-point scale) o 0.0005 0.33*** (0.25,0.43) o 0.0005 0.44*** (0.30,0.63)
Attitude component II (five-point scale) o 0.0005 0.65*** (0.53,0.80) 0.052 0.77 (0.59,1.00)
Attitude component III (five-point scale) 0.023 1.29* (1.04,1.62) 0.375 0.87 (0.65,1.18)
�po0:05; ��po0:01; ���po0:001.Multivariate model: w2 ¼ 111.43, df ¼ 24, po0:0005. Pseudo-R2 (proportional reduction in w2 compared to constant-only model) ¼ 0.18.
The reference category for each categorical variable is shown in bold.
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ARTICLE IN PRESSS. Sutton, C. Rutherford / Social Science & Medicine 61 (2005) 2460–2465 2465
The finding that anticipated embarrassment was a
significant independent predictor is broadly consistent with
previous studies that have shown the importance of
perceived barriers to screening uptake (Murray & McMil-
lan, 1993; Orbell et al., 1996). This problem needs to be
addressed in information campaigns and other aspects of
the screening service, especially as a substantial minority of
women (22%) in the present study thought that going for
smear test would be quite or very embarrassing.
Attitudes to screening (component I) were also
strongly associated with uptake. Agreement with state-
ments such as ‘‘There’s no point going for screening if
you don’t have any symptoms’’ may reflect a failure to
understand the rationale for screening. Previous studies
have identified a similar lack of understanding (e.g.,
Nicoll, Narayan, & Paterson, 1991). Clearly, this needs
to be addressed in information campaigns and materials.
There was no evidence that attitudinal variables
mediated the effects of marital status and education on
uptake. Future studies should investigate other attitu-
dinal variables (such as perceived social pressure or
approval from the woman’s partner) that may mediate
the effect of marital status.
The relatively weak and inconsistent effects of the SES
indicators in this study may be partly explained by the
fact that a national call–recall programme has been in
operation in the UK since 1988. It is possible that a
system based on sending women regular postal invita-
tions has had the effect of reducing socioeconomic
differentials in cervical screening uptake by comparison
with other health services where participation requires an
unprompted response. Although we cannot formally
generalise our findings beyond Britain, we suggest that
similar findings may be expected in countries where
organised screening programmes based on postal invita-
tions have been in place for some years, e.g., Finland,
Iceland and The Netherlands. However, we are not aware
of any studies that have investigated sociodemographic
and attitudinal correlates of uptake in these countries.
Acknowledgements
This study was funded by the National Breast and
Cervical Screening Programmes. We thank Mrs. Julietta
Patnick, the National Screening Coordinator, for her
interest and support.
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