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Breast and cervical cancer-screening uptake among females in Ardabil, northwest Iran: a community-based study

Authors Farzaneh E, Heydari H, Shekarchi AA, Kamran A 

Received 21 October 2016

Accepted for publication 19 December 2016

Published 17 February 2017 Volume 2017:10 Pages 985—992

DOI https://doi.org/10.2147/OTT.S125344

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 4

Editor who approved publication: Dr Samir Farghaly



Esmaeil Farzaneh,1 Heshmatolah Heydari,2 Ali Akbar Shekarchi,3 Aziz Kamran4

1Department of Forensic Medicine and Toxicology, Ardabil University of Medical Sciences, Ardabil, Iran; 2Department of Nursing, Lorestan University of Medical Sciences, Khorramabad, Iran; 3Department of Pathology, 4Department of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran

Purpose: Breast and cervical cancers are the most commonly diagnosed type of cancer and cause of cancer-related deaths in Iranian females. In contrast to previous studies, this study was carried out with a large sample size for assessment of breast self-examination (BSE)-, clinical breast examination (CBE)-, mammography-, and Pap smear-uptake rates and determination of associations among these screening behaviors with sociodemographic and cognitive variables in Azeri females.
Materials and methods: This was a cross-sectional, community-based study that was carried out among 1,134 females 20–60 years old during March–June 2016. Data-collection variables included sociodemographic questions, screening behaviors for breast and cervical cancer, self-efficacy, beliefs, and barriers to breast and cervical cancer screening. Collected data were analyzed by SPSS version 13 using χ2, Mann–Whitney U, and logistic regression tests.
Results: Among the 1,134 participants, 53.9%, 9.8%, and 28.1% had done BSE, CBE, and Pap smear tests, respectively, and among the 625 females aged >40 years, 187 (29.9%) had done the mammography test. Moreover, 416 (36.7%), 103 (16.5%), and 64 (5.6%) females had done BSE, mammography, and CBE regularly, respectively. Beliefs, barriers, income, health insurance, number of children, and age were all important factors for BSE and regular BSE and mammography. Females who had high belief scores were more likely to undertake mammography (odds ratio [OR]: 1.2, 95% confidence interval [CI]: 1.03–1.5), regular mammography (OR: 4.2, 95% CI: 1.9–9.3), regular CBE (OR: 1.25, 95% CI: 1.2–1.3), and Pap smears (OR: 1.2, 95% CI: 1.1–1.4). Also, females who had high self-efficacy scores were more likely to perform regular BSE (OR: 1.8, 95% CI: 1.4–2.5) and mammography (OR: 2.5, 95% CI: 1.4–4.6) than females with lower self-efficacy scores.
Conclusion: The frequency of breast and cervical cancer screening was low in our study. The findings of this study indicated that beliefs, self-efficacy, and barriers were important predictive factors of cancer-screening behavior among the females studied.

Keywords: breast cancer, cervical cancer, screening, females

Introduction

Breast cancer is the most commonly diagnosed cancer in females worldwide, and is the leading type and cause of cancer-related deaths in Iranian females too. Breast cancer prevalence is estimated to be 24.6%–33.3% of all cancers in Iran.14 Recently, evidence has shown that over half a million females will lose their lives as a result of this cancer,2 and its incidence is increasing among Iranian females. According to applied research of the Iranian Ministry of Health and Medical Education, during 2006–2010 in 29 provinces the mortality of breast cancer increased, and there was some evidence to indicate an increase in incidence of this cancer in the future.2

Cervical cancer is one of the most preventable cancers and the second-most prevalent cancer among females in the world.5 However, the incidence of cervical cancer in Iran is low6 and the prevalence of human papillomavirus infection is 7% among healthy Iranian females,7 but the prognosis for cervical cancer is poor and the mortality rate is high: reported as 42%–44% in different studies.5,7

Evidence has shown that screening programs for breast cancer could lead to a 20% reduction in mortality from breast cancer.8 Iran’s national breast cancer-screening program was introduced in 2012, and recommended that females >40 years have an annual mammogram, females 20–40 years old have one clinical breast examination (CBE) every 3 years and annual CBEs after 40 years, and monthly breast self-examination (BSEs) for females >20 years.9 The Pap smear test is an effective screening program,10 and according to the national program cervical cancer screening should be done for all females after marriage, and after three normal Pap smear samples this test should be repeated every 3 years.11 This was done free of charge in health care centers, but unfortunately test uptake was not favorable. In a recent Iranian study, 49.4% of females had done the test once in their lives,10 whereas in other countries have reported rates of 85%–93%.12 However, the results of previous studies showed a low level of performance and variations in breast cancer screening among Iranian females.1315

Some studies have analyzed uptake for breast and cervical cancer screening among Iranian females,5,9,13,14 but none of these investigated the cervical and breast cancer screening to include BSE, CBE, mammography, and Pap smears simultaneously. Also, these studies did not examine sociodemographic variables with cognitive variables for determining breast and cervical cancer-screening behaviors. Therefore, this study was carried out to assess BSE, CBE, mammography, and Pap smear screening behaviors among Azeri females (living in Ardabil, northwest Iran) and to study associations among these screening behaviors with demographic and cognitive variables, such as self-efficacy, barriers, and attitudes toward breast and cancer screening.

Materials and methods

This was a cross-sectional, community-based study conducted in Ardabil city, located in northwest Iran. Ardabil has 238,535 females, and all are Muslims.

Study population

This study was carried out among 1,134 females 20–60 years old. Participants were recruited from March to June 2016 by trained nursing students. Inclusion criteria were being an Ardabilian female between the ages of 20 and 60 years, without any personal history of breast and cervical cancer, and willingness to participate in the survey. The sampling method was multistage. In the first stage, Ardabil city was divided into three regions according to economic status (low, middle, and high level). Each region was divided into four blocks, and two blocks of each region were randomly selected by simple sampling. In the next stage, public places, such as coffee shops, retail stores, bookstores, childcare facilities, grocery stores, bus stops, and parks, were selected by simple random sampling from each block, and participants were recruited after exploration of the study objectives and expressing their own informed consent. Exclusion criteria were females not consenting to complete the questionnaire and any female with a diagnosis of breast or cervical cancer.

Study procedure

The data-collection instrument comprised six sections: 1) sociodemographic questions, 2) screening behavior for breast cancer, 3) screening behavior for cervical cancer, 4) self-efficacy, 5) beliefs, and 6) barriers to breast and cervical cancer prevention. The questionnaire was developed based on information obtained from previous studies about breast and cervical cancer screening. Sociodemographic information included age, marital status, level of education, number of children, health insurance coverage, and monthly income. The questionnaire was completed by subjects after introducing the objectives of the study by trained researchers in an appropriate place.

Self-efficacy

This subscale measured females’s confidence in breast and cervical cancer screening by using five items based on a 5-point Likert scale (1= strongly disagree, 2= disagree, 3= no comment, 4= agree, 5= strongly agree). Those who were scored 5–11 points were grouped in the low level, 12–18 points in the medium level, and 19–25 points in the high level. Example items included: “I am confident that I can schedule and keep a screening test appointment” and “I am confident that I can get a screening test even if I have to pay for it”.

Beliefs

Ten questions were asked on participants’ beliefs about breast and cervical cancer prevention. The responses were based on the 5-point Likert scale. Example items included: “It is likely that I will get breast or cervical cancer”, “Having a screening test is the best way for me to find cancer at an early and curable stage”, and “Having a test will decrease my chances of dying from cancer”.

Barriers

Barriers were evaluated by a ten-item scale based on the 5-point Likert scale. Example items included: “I am afraid of having a screening test, because I might find out something is wrong”, “Having a screening test is too embarrassing”, “Having a screening test takes too much time”, “Having a Pap smear or mammogram is too painful”, and “I have other problems more important than getting a test”. Internal reliability for the self-efficacy, belief, and barrier sections was 0.89, 0.84, and 0.9, respectively.

Breast cancer screening was assessed using six questions. These questions were: 1) Have you ever had a mammography test (yes/no)?; 2) If yes, regular or irregular?; 3) Have you ever had a BSE (yes/no)?; 4) If yes, regular or irregular?; 5) Have you ever had a CBE (yes/no)?; and 6) If yes, regular or irregular? According to the Iranian health ministry: 1) females 20–40 years old should have a CBE done every 3 years and annually for high risk females <30 years or >40 years old; 2) for females aged ≥40 years, it is commonly recommended that they have a mammography test every 3 years; and 3) females aged ≥20 years should have a BSE monthly.14,16

In Iran, cervical cancer screening should be done annually for all females after marriage for 3 years, and after three normal and reliable Pap smear samples, this test should be repeated every 3 years.10 Therefore, cervical cancer scoring was assessed by using one question: Have you ever had a Pap smear (yes/no)?

Ethical considerations

This study was approved by the research-review committee of Khakhal Faculty of Medical Sciences. Verbal informed consent was obtained from all respondents, females participated voluntarily, and the questionnaire was anonymous for quarantine participants’ confidentiality.

Data analyses

Data were analyzed by SPSS version 13 (SPSS Inc, Chicago, IL, USA). Demographic characteristics were analyzed using frequency tables and means. Logistic regression was used to examine associations among self-efficacy, beliefs, barriers, sociodemographic variables, and breast/cervical cancer-screening behaviors. Some of the independent variables were income, insurance, age, marital status, self-efficacy, beliefs, barriers, and education level. The level of significance was P<0.05. Odds ratios (ORs) and 95% confidence intervals (CIs) were determined to explore significant factors associated with cervical and breast cancer-screening behaviors among females who participated in this study.

Results

Table 1 shows sociodemographic characteristics of the participants in the present study. Among the 1,134 participants, 611 (53.9%), 111 (9.8%), and 319 (28.1%) females had done the BSE, CBE, and Pap smear test, respectively. However, among the 625 aged >40 years, 187 (29.9%) had had a mammography test in their life. Also, results showed that 416 (36.7%), 103 (16.5%), and 64 (5.6%) females had undertaken BSE, mammography, and CBE regularly. The mean age of those who had undertaken BSE and CBE was significantly lower than females who had not. Nevertheless, the mean age of those who had undertaken mammography and Pap smears was significantly higher than the others.

Table 1 Sociodemographic characteristics of the participants

There were significant differences between the two groups (those who had done screening tests and those who had not) with regard to education level, income level, and number of children, but no significant difference was seen for marital status (Table 2). Also, results showed that there were significant differences between females who returned for screening tests regularly and females who did not with regard to education level and income level (Table 3).

Table 2 Comparison of screening test behavior with sociodemographic variables
Notes: an=1,134; bn=625; cχ2 test; dMann–Whitney U test.
Abbreviations: BSE, breast self-examination; CBE, clinical breast examination.

Table 3 Comparison of regular screening test behavior with sociodemographic variables
Notes: an=1,134; bn=625; cχ2 test; dMann–Whitney U test.
Abbreviations: BSE, breast self-examination; CBE, clinical breast examination.

Beliefs, barriers, income, self-efficacy, number of children, and age were all important factors for prediction of BSE and regular BSE behaviors. Beliefs, barriers, income, self-efficacy, age, and income were important factors for mammography and regular mammography (Table 4). Females who had high belief scores were more likely to undergo mammographies (OR: 1.2, 95% CI: 1.03–1.5), regular mammographies (OR: 4.2, 95% CI: 1.9–9.3), regular CBEs (OR: 1.25, 95% CI: 1.2–1.3), and Pap smears (OR: 1.2, 95% CI: 1.1–1.4) compared to other females.

Table 4 Results of logistic regression analyses
Abbreviations: BSE, breast self-examination; CBE, clinical breast examination; OR, odds ratio; CI, confidence interval.

Beliefs, barriers, and self-efficacy were important factors for CBE, and beliefs were an important factor for regular CBEs (Table 4). In addition, results showed that beliefs and self-efficacy were important factors in Pap smear screening tests (Table 4). Females with high self-efficacy scores were more likely to perform regular BSEs (OR: 1.8, 95% CI: 1.4–2.5), regular mammographies (OR: 2.56, 95% CI: 1.41–4.6) and Pap smears compared to females with low self-efficacy scores (Table 4).

Discussion

In the present study, the rate of BSE was 53.9% (611 participants), which was higher than a similar study that reported 49.4% of Iranian females performing BSEs17 and higher than American-Korean females (30.9% performing BSEs).18 This finding is consistent with previous Iranian studies suggesting that the rate of BSE is not satisfactory.19,20

The overall uptake of mammography in this study was 29.9% (187 females), which was higher than that reported among Turkmen females in northeast Iran (<1%)13 and southeast Iran (1.5%)21 and lower than a study conducted in Isfahan, a city in central Iran (44.3%).14 This finding revealed the fact that mammography uptake in Iranian females was lower than that reported in developed countries, eg, 93% in the UK,22 63.7%–84.2% among American females,23 and 64% among Filipinas.24

Results showed that 111 (9.8%) females had undertaken CBE. This rate was <53.3% of Malaysian females aged 20–64 years who had undertaken CBE25 and contrasted with reported CBE uptake in another Asian study.26 The overall uptake of Pap smears in this study was 28.1% (319 females), which was lower than a reported 91% of females aged 40–74 years who had ever had a cervical Pap smear22 and lower than Jalilian and Emdadi, in which 63.8% of participants had undergone Pap smears.27 Also, Yu and Rymer reported that 80.5% of subjects had had a Pap smear atleast once.28

In the present study, family income and age were significant factors in BSE, regular BSEs, and mammography screening behaviors. This finding is in line with other similar studies,22,2931 where the effect of increasing household income was confirmed on the basis of breast and cervical cancer-screening uptake. Moreover, health insurance and education level were significant predictors of BSE, regular BSEs, and mammographies in the present study, which is consistent with similar studies.3234

Other studies have found that females with low incomes had lower participation rates in breast cancer screening,33,35 and several studies have shown that higher levels of education were an important predictor for breast and cervical cancer screening.3638 In the present study, family income was an important influencing factor for some cancer-screening test uptake. However, females with higher socioeconomic status were more likely to undergo cancer screening, and these findings were consistent with the results of similar studies.22,39 Marital status was not associated with breast/cervical cancer-screening uptake in the present study, but Frie et al found that females who were not married were significantly less likely to attend the screening process.40

The results showed that self-efficacy and beliefs were important factors in cancer-screening practices. However, the fact that females with higher self-efficacy scores are more likely to undertake cancer-screening practices is supported by previous research.4143 Hartman et al showed that perceptions of a specific health behavior played an important role in reducing breast cancer risk and engaging in that health behavior.44 Consistent with our study, a previous study showed the prediction power of females’s confidence in their skills to perform BSE,45 and the importance of self-efficacy in mammography and Pap test rates discussed by Kessler46 and the significant relationship between beliefs and having Pap smears reported by Jennings-Dozier47 are consistent with our study findings. A lack of barriers introduced by Ho et al48 as the most significant predictors of BSE, MBE, and mammography, and also other similar studies, showed the significant relationship between barriers and beliefs with regard to breast cancer examination.42,49

Conclusion

The frequency of performing breast and cervical cancer screening was low in our study. Also, the findings of this study indicated the roles of beliefs, self-efficacy, and barriers were important factors in cancer-screening behavior among the females studied. Therefore, breast and cervical cancer-prevention programs should focus on improving self-efficacy and the reduction of barriers to cancer screening.

Limitations

There were some strengths and limitations for the present study. It was the first study to examine breast (BSE, CBE, and mammography) and cervical (Pap smear) cancer-screening test uptake simultaneously in Iran, especially among Azeri females, who are at a low level economically. However, some other determinants were not studied in the present research, such as family history of cancer and knowledge and awareness of females with regard to breast and cervical cancer.

Disclosure

The authors report no conflicts of interest in this work.


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