Determinants of Uptake of Pap Smear Screening among Postnatal Women: A Multi-centre Cross-Sectional Study in Benin City

 

Anya Chidinma J, Iweka Reuben O, Ekanem Cedar E, Ezemenaka Chinonye N, Okome Damisan P.1

 

 

Department of Obstetrics and Gynaecology, University of Benin Teaching Hospital, Benin City, Edo State, Nigeria.

 

Abstract


Correspondence:

 

Cedar Emmanuel Ekanem

 

Department of Obstetrics and Gynaecology,

University of Benin Teaching Hospital,

Benin City, Edo State, Nigeria.

cedar.ekanem@gmail.com

+2348128514451

Objective: To determine the knowledge, uptake and uptake barriers to Pap smear in Postnatal women in Benin City. Method: A cross-sectional analytical multi-centre study was conducted among postnatal women in Benin City, Nigeria. Data was collected by interviewer-administered questionnaire method. Data analysis was done using chi-square analysis and Logistic regression and a p-value < 0.05 was considered significant. Result: There were 522 respondents with a mean age group of 28.87 ± 7.0. Only 47.7% were aware of the pap smear. Among the respondents who were aware of pap smears, only 25.7% had done it in the past with 1.6% having abnormal results. About 49.8% recommend a pap smear to be done at 6 weeks postpartum. The level of education of respondents (OR: 0.253, 95% CI: 0.080–0.796, p=0.019) was a predictor of knowledge as those with primary level of education were less likely to know about pap smears. Uptake was higher amongst the aged 40 and above and married women which were statistically significant (0.002 and 0.048 respectively). The reason for refusal was mainly inadequate information (67.6%). Others are cultural beliefs (11.9%), religious beliefs (10.3%), fear of bleeding (4.3%), fear of infections (4.3%) and lack of funds (1.6%). Conclusion: This study showed low uptake of pap smear among the respondents largely due to lack of information. We recommend pap smears be integrated into antenatal health education and reinforced at the postnatal clinic to improve public awareness and acceptance as an approach to reducing cervical cancer burden.

 

Keywords: Postnatal, Pap smear, Uptake, Barriers


 

 

 


INTRODUCTION

Cancer of the cervix is a preventable and curable disease when detected and treated early, especially in its premalignant stage. Cervical cancer is one of the most common cancers worldwide with 662,301 new cases diagnosed in 2022 and 19% of new cases were reported from Africa.1 Cervical cancer remains a global burden. In 2022 the World Health Organization reported mortality of 23.1% from cervical cancer accounting for  80,614 deaths in that year from Africa alone.1 This highlights the

 

significant burden posed by cancer of the cervix in Africa.1  In Nigeria, a report in 2022 showed that every year 12075 women are diagnosed with cervical cancer and 7968 die from the disease.2 Cervical cancer is the second most frequent cancer among women in Nigeria after breast cancer and the most common cancer of the genital tract.1

The Papanicolaou (Pap) smear is the most successful screening test for carcinoma in the history of medicine.3  Since its introduction in the early 1930s, the national death rate from cervical cancer has dropped by at least 70%.3 This is due to its low cost, and low false-negative rate.3 The Pap smear test mainly assists in the early detection of precancerous lesions. The American College of Obstetricians & Gynaecologists (ACOG) recommends that women at the age of 21 should start screening for cervical cancer via Pap smear, regardless of the period at first sexual intercourse, contrary to previous guidelines.4 The Society of Obstetricians and Gynaecologists of Nigeria (SOGON) also recommends the same.5 Other screening methods available are VIA, VILI and HPV DNA.5 Human Papillomavirus (HPV) testing has the highest sensitivity for detection of cervical cancer.5 However, in low-income counties, where HPV testing is not available, alternative screening methods including VIA/VILI and cytology (pap smear) are recommended.5 The Pap smears are preferred in low and middle-income countries because they are cheaper, more easily affordable and the skill for the procedure is more readily available. The pap smear helps to detect early-stage cancer of the cervix, although it is not as specific and sensitive as HPV DNA testing or other screening modalities, it can help detect some cases of cervical cancer thereby leading to prompt treatment and reduction in morbidity and mortality associated with advanced stage of cervical cancer.

Currently, in Nigeria there is no coordinated screening program for cervical cancer and this may explain the possible high cases of cancer of the cervix in Nigeria.5 Most of the pap smears done are by chance or when the patient presents for other gynaecological issues or postnatal clinic. The postnatal clinic is assumed to have a better chance to meet well women and screen them for a pap smear, yet uptake is low despite postnatal counselling. Lack of knowledge and misinformation were found to be the main barriers to accessing screening by Coleridge et al6 and when educational resources for pregnant women and midwives were introduced, the screening rate improved by 8%.6

A study by Daru et al in Jos Nigeria on cervical cancer screening showed that 9 (7.1%) had atypical dysplasia, 901(5.7%) were Low-grade squamous intra-epithelial lesions (LGSIL),  and 332(2.1%) were high-grade intra-epithelial lesions (HGSIL).7 A similar study by Ago et al in postnatal women showed that 3% of the women had positive pap smears.8 This Pap smear screening program in women especially in the postpartum period may be the only opportunity for screening these women, especially in low-income countries due to poor health-seeking behaviour. Therefore, not maximizing this opportunity of screening these women can contribute to missing a great opportunity that can help in reducing the burden of cancer of the cervix. In Zimbabwe, a Pap smear is offered as part of the postnatal visit evaluation guideline aimed at reducing morbidity and mortality from cervical cancer.9,10,11 However, limitations in resources, infrastructure, manpower, delays in treatment and patient knowledge play have been the barrier to the uptake of pap smears leading to a high morbidity and mortality of cervical cancer in Zimbabwe.10,11 In Nigeria, no such guideline exists.

A study comparing pap smear results in pregnancy and at 6 weeks postnatal showed that although the prevalence of abnormal pap smear was low in the study population, there was a high remission rate at 6 weeks postpartum.12 Despite the low prevalence reported in postnatal women, it is desirable to perform cervical screening as it provides an opportunity for no screening at all. Thus, this study aims to evaluate the acceptance and uptake barriers of Pap smears in postnatal women.

Despite the pap smear being offered at the postnatal clinic and being an affordable and effective screening method, the uptake is low, hence the increasing morbidity and mortality from cervical cancer. This study aims to evaluate the acceptance and determinants of uptake of pap smears among postnatal women. This will help in strategizing and re-evaluation of policies and factors associated with cervical cancer screening. In other to reduce the burden of cervical cancer.

Therefore, this study was carried out to determine the acceptance rate and determinants prevalence of the knowledge, acceptance, and uptake barriers of Pap smear in post-natal women in Benin City

METHODS

Study Area

The study was carried out amongst all postnatal women in the University of Benin Teaching Hospital (UBTH) and St Philomena Catholic Hospital, Benin City, Edo State, Nigeria. The University of Benin Teaching Hospital (UBTH) is a tertiary health facility located in Benin City, Edo State, South-south region of Nigeria. It is a major referral point, attracting patients from at least the three neighbouring states of Delta, Kogi and Ondo. St Philomena Catholic Hospital is a foremost Secondary Health Facility Located in Benin City, a missionary hospital which serves as one of the leading private health facilities. These 2 centres were selected because of their high number of obstetrics and gynaecological patients representing the public and private health facilities in Benin City (Figure. 1). The monthly delivery in UBTH is about 250 while St Philomena is about 150 deliveries monthly.

Study Design/ Duration

The study was a cross-sectional analytical multi-centre study over 6 months from 1st March 2024 to August 31st, 2024.

Study Population

All postnatal women who presented at the 6 weeks postnatal clinic and gave written consent were included in the study, while those who were too ill or with incomplete data were excluded from the study.

Sample Size

A total of 522 clients were consecutively recruited for this study which covered the minimum sample size required using a 22.9% uptake rate of pap smear in Lagos by Okunowo et al14 in 2018,13 using the Cochrane formula.

Sampling Technique

A consecutive sampling of all consenting women who presented for the postnatal clinic at 6 weeks postpartum.

Data Collection/Analysis

A semi-structured interviewer-administered questionnaire was used for data collection. The questionnaire contained information on sociodemographic characteristics, acceptance, uptake and uptake barriers of pap smears. A research assistant who was unaware of the outcome was used for data collection to prevent bias. Data was analysed using SPSS version 25.0, Chi-square test was used for categorical data, and p-value ≤ 0.05 was considered statistically significant at a 95% confidence interval. Logistic regression analysis was used to determine factors associated with the knowledge of pap smears.

RESULTS

The sample (Table 1) consisted of 522 individuals with a mean age of 28.87 ± 7.0 years. The respondents consisted of 338 respondents from UBTH and 184 from St Philomena Hospitals, Benin City, Nigeria (Figure 1). In this study, 244 (46.7%) were primiparas, 139 (26.6%) had two children, 72 (13.8%) had three children, and 67 (12.8%) had four or more children. In terms of religion, 483 (92.5%) were Christians, 36 (6.9%) were Muslims, and 3 (0.6%) followed traditional religions. Also, 64 (12.3%) were single, while 458 (87.7%) were married. Most of the respondents, 505 (96.7%), lived in urban areas, while 17 (3.3%) resided in rural areas. Regarding clients' occupations, 69 (13.2%) were housewives, 234 (44.8%) were traders, 59 (11.3%) were students, 72 (13.8%) were civil servants, and 88 (16.9%) were engaged in other occupations.

In this study, 249 (47.7%) were aware of the Pap smear, while 273 (52.3%) were not (Table 2). Among the 249 respondents who had heard of it, 140 (56.2%) were told by healthcare professionals (Table 2). The majority of 193 (77.5%) participants agreed that Pap smear plays a role in the screening of cervical cancer (Table 2.). This response is largely because they were counselled by healthcare professionals.

 

Table 1: Sociodemographic Characteristics of Respondents

 

Variable

Frequency (n = 522)

Percent (%)

Age group (years)

 

 

<20

48

9.2

21-30

298

57.1

31-40

149

28.5

>40

27

5.2

Mean ± SD        28.87 ± 7.0

Parity

 

 

1

244

46.7

2

139

26.6

3

72

13.8

≥4

67

12.8

Religion

 

 

Christian

483

92.5

Islam

36

6.9

Traditional

3

0.6

Marital Status

 

 

Single

64

12.3

Married                                                                                                                                                                    

458

87.7

Residence

 

 

Urban

505

96.7

Rural

Marriage Type

Monogamous

Polygamous

Clients LOE

Primary

Secondary

Tertiary

Clients Occupation

Housewife

Trader

Student

Civil Servant

Others

17

 

500

22

10

29

483

 

 

69

234

59

72

105

3.3

 

95.8

4.2

1.9

5.6

92.5

 

 

13.2

44.8

11.3

13.8

16.9

 

 

 

 

 

In Table 3, clients' level of education revealed that respondents with primary education had a significantly lower likelihood of knowledge (OR: 0.253, 95% CI: 0.080–0.796, p=0.019) than those with secondary education that had an OR of 0.997 (95% CI: 0.239–4.165, p=0.997). Tertiary education served as the reference category.

In Table 4, among the respondents, 64 (25.7%) had done, while 185 (74.3%) had not. Of those who had done a Pap smear, the majority, 44 (68.8%), had done it once, 16 (25.0%) had done it twice, and 4 (6.3%) had done it three times. Regarding the reasons for undergoing

Table 2: Knowledge of Pap Smear among Respondents

 

Variable

Frequency (n = 522)

Percent

Heard of Pap Smear

 

 

Yes

249

47.7

No

273

52.3

Source of Knowledge (n=249)

 

 

Healthcare Professionals

140

56.2

Internet

28

11.2

School

21

8.4

Friends

19

7.6

Books

14

5.6

Tv/Radio

14

5.6

Newspaper

5

2.0

Parents

4

1.6

Others

4

1.6

Pap smear has a role in the screening for cervical cancer (n=249)

 

 

Yes

193

77.5

No

9

3.6

Unsure

47

18.9

 

 

Table 3: Predictors of Knowledge of Pap Smear among Respondents

 

 

* Reference Category, ** Statistically significant, R2= 3.7 -5.1%

CI= Confidence Interval, OR=Odds Ratio

 

 

the Pap smear, 37 (57.8%) reported doing it based on healthcare worker recommendations, 12 (18.8%) due to advice from family members, and 7 (10.9%) said they did it due to advice from friends. Furthermore, 63 (98.4%) of the respondents who had undergone the test reported receiving normal results, while 1 (1.6%) received an abnormal result.

 

Table 4: Uptake of Pap Smear and Its Determinants

 

 

In Table 5, The association between the uptake of Pap smear and the sociodemographics of respondents revealed significant findings. Among the 64 respondents who had ever done a Pap smear, 6 (21.4%) were under 20 years of age, while 22 (78.6%) of that age group had not undergone the test. In the age group of 21-30 years, 37 (24.8%) had done the test, while 112 (75.2%) had not. For those aged 31-40, 11 (19.3%) had undergone a Pap smear compared to 46 (80.7%) who had not. Notably, in the age group over 40 years, 10 (66.7%) had done the test, while only 5 (33.3%) had not, (χ² = 14.732, p = 0.002), indicating a statistically significant relationship. Marital status presented more compelling results, with only 4 (11.4%) single respondents having done a Pap smear compared to 31 (88.6%) who had not. In contrast, among married respondents, 60 (28.0%) had undergone the test, and 154 (72.0%) had not, (χ² = 4.345, p = 0.048), indicating a significant association.

In Table 6, among the respondents, 213 (85.6%) indicated that they would undergo a Pap smear if it were offered free of charge, 84 (33.7%) preferred general hospitals, 55 (22.1%) opted for tertiary hospitals, while both private clinics and primary healthcare centres received equal support from 49 (19.7%) of the respondents. About 124 (49.8%) of respondents recommend pap smear should be done at 6 weeks postpartum. Furthermore, in terms of recommending a Pap smear to friends, 235 (94.4%) expressed they would, whereas 8 (3.2%) would not.

 

Table 5: Association Between Uptake of Pap Smear and Sociodemographics of Respondents

Figure. 1 Flowchart of the study recruitment.

 

 

Table 6: Factors Affecting Uptake and Recommendations on Pap Smear amongst Knowledgeable Respondents

 

 

 

Figure 2: Uptake Barriers of Pap Smear

 

 

In Figure 2, among the 185 respondents who had not undergone a Pap smear, the primary reason cited for not doing so was a lack of adequate information, reported by 125 (67.6%). Cultural reasons were mentioned by 22 (11.9%), while 19 (10.3%) indicated religious reasons. Additionally, 8 (4.3%) cited fear of bleeding, another 8 (4.3%) mentioned fear of infections, and 3 (1.6%) noted a lack of funds as reasons for not participating in the screening.

DISCUSSION

Pap smear is undoubtedly an important screening tool in the fight against cervical cancer especially in a low-resource setting like Nigeria with a high burden of the disease. This study revealed that more than half of the respondents (52.3%) had never heard of Pap smear screening.  This is comparable to the study by Okunowo et al, in Lagos where they found an awareness rate of Pap smear of 55.1%,13 and a study by Padingani also revealed

Table 6: Factors Affecting Uptake and Recommendations

on Pap Smear amongst Knowledgeable Respondents

similar poor knowledge of cervical cancer screening even in Zimbabwe.10 This underscores the importance of counselling and educating all female clients about pap smear screening for cervical cancer.

The relationship between the level of education and knowledge of Pap smears among respondents was statistically significant as patients with a primary level of education were less likely to know about pap smears. This underscores the need to use diverse channels of communication taking cognisance of local language for ease of understanding. explain based on patients' level of education for ease of understanding. Also, there is a need for the inclusion of knowledge about pap smear screening in most institutions’ postnatal guidelines as it provides a good opportunity to interact with women of reproductive age group. This was similarly highlighted in the study done in Lagos, Nigeria by Okunowo et al13 where a tertiary level of education was observed to increase the awareness of Pap smear among the respondents significantly. This underscores the need to use illustrations in addition to the local language during public awareness campaigns to drive home messages on pap smear screening.

Interactions with the healthcare workers should include emphasis on having a Pap smear done especially during the post-natal clinic. Regarding this, majority of the respondents (49.8%) also agreed that a Pap smear should be done at 6 weeks post-delivery. Compared to the study by Ago BU et al.,8 in 2022 where only 15.56% had ever had a Pap smear screening, our study showed that 25.7% had once undergone a Pap smear based on mainly recommendation from a health care worker with 1.6% receiving an abnormal result. Our study revealed that few patients have had routine Pap smear checks because of poor health-seeking behaviour and the only opportunity they may have had to interact with the healthcare workers after a normal delivery was at the six-weeks post-natal clinic appointment.

It is encouraging from the results of our study that most of our respondents (85.6%) are willing to accept a Pap smear and even recommend it to friends especially if it is offered free of charge. This was even more than the finding by Ago BU et al., and Okunowo et al, where only 52.2% and 67.1% respectively of their respondents who had never done a Pap smear were willing to have one done.8,13 Unfortunately, a few patients (7.2%) were still unwilling to do a pap smear and even though the majority (67.6%) cited lack of adequate information as their reason for refusal; cultural, religious reasons; fear of bleeding and infection and lack of funds were other reasons cited. This seems to be better than the data obtained by Ago BU et al.,8 in Calabar where almost half of their respondents (47.78%) rejected the offer of Pap smear screening, though the reasons for their refusal were not explored.  All these fears can be allayed with proper counselling in the antenatal and gynaecological clinics.

This study has shown that women are ready and willing to accept pap smear screening at the six-week postnatal clinic visit, especially with proper counselling. It is recommended that a guideline for routine pap smear screening at the post-natal clinics should be set up and implemented for the early detection of cervical cancer in Nigeria.

CONCLUSION

This study has shown that awareness and uptake of Pap smears are still low at 47.7% and 25.7% respectively, despite sensitization to cervical cancer screening. The good thing is that many women are ready and willing to accept pap smear screening at the six-week postnatal clinic especially if made free. The role of health education and counselling on Pap smears from healthcare givers is very paramount in the acceptance and uptake of Pap smears. Hence, a need to integrate counselling into the antenatal health talk. Therefore, we recommend that routine pap smear screening should be integrated into post-natal clinics. These would help for early detection and prevention of cervical cancer.

REFERENCES

1.    Ferlay J, Colombet M, Soerjomataram I, Parkin DM, Piñeros M, Znaor A, et al. Cancer statistics for the year 2020: An overview. Int J Cancer. 2021;149(4):778–89.

2.    ICO/IARC Information Centre. Nigeria HumAvaan Papillomavirus and Related Cancers. Fact Sheet 2023. 2014;2023:12–4. A

3.    Michael CW. The Papanicolaou smear and the obstetric patient: a simple test with great benefits. Diagn Cytopathol. 1999;21(1):1-3. doi:10.1002/(sici)1097-0339(199907)21:1<1::aid-dc1>3.0.co;2-0.

4.    Nektaria Z, Ioannis M, Kyriakos K, George M. Test Papanicolaou During Pregnancy : Perceptions and Reality in Clinical Practice : A Review of the Literature. J Comm Med and Pub Health Rep 2023;4(01).

5.    Akinola OI, Aimakhu CO, Ezechi OC, Fasubaa OB. Society of obstetrics and gynecology of Nigeria – Clinical practice guidelines: Guidelines for the prevention of cervical cancer. Trop J Obstet Gynaecol 2018;35:371‑6.

6.    Coleridge SL, Wiggans A, Nelissen E, Bethune R, Blackwell R, Bryant A, et al. Improving the uptake of cervical screening in pregnant and recently postnatal women : a quality improvement project. BMJ Open 2022;1–10.

7.    Daru PH et al., A Decade of Cervical Cancer Screening at the Jos University Teaching Hospital.  Trop J Obstet Gynaecol. 2021;279–87.

8.    Ago BU, Etokidem A, Ebughe G. Prevalence of Abnormal Cervical Cytology among Postnatal Clinic Attendees at the University of Calabar Teaching Hospital , Nigeria. Open Access Library Journal, Vol.3 No.9, 2016.

9.    Zibako P, Tsikai N, Manyame S, Ginindza TG. Cervical cancer management in Zimbabwe (2019-2020). PLoS One. 2022 Sep 21;17(9):e0274884. doi: 10.1371/journal.pone.0274884. PMID: 36129898; PMCID: PMC9491541.

10.  Padingani M, Marape G, Hwalima Z, Gombe N, Juru MT. Uptake of Cervical Cancer Screening among Women Attending Health Facilities in the City of Bulawayo , 2012. Open Journal of Epidemiology, Vol.8 No.3, 2018.

11.  Kuguyo O, Matimba A, Tsikai N, et al. Cervical cancer in Zimbabwe: a situation analysis. Pan Afr Med J. 2017;27:215. Published 2017 Jul 21. doi:10.11604/pamj.2017.27.215.12994.

12.  Saeaib N, Liabsuetrakul T, Kanjanapradit K. Postpartum Pap Smear Results in Women with Abnormal Pap Smears Detected at First Antenatal Care : A Retrospective Study in a Songklanagarind Hospital. PSU Med J 2021. 2021 :55–622.

13.  Okunowo AA, Daramola ES, Soibi-harry AP, Ezenwankwo FC, Kuku JO, Okunade KS, et al. Women’s knowledge of cervical cancer and uptake of Pap smear testing and the factors influencing it in a Nigerian tertiary hospital. J Cancer Res Pract [Internet]. 2018;5(3):105–11. Available from: https://doi.org/10.1016/j.jcrpr.2018.02.001

14.  Cochran WG. Sampling Technique, Third Edition. New York: John Wiley and Sons, Inc 1977: 149-156.