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| Year : 2013 | Volume
: 30
| Issue : 4 | Page : 257-262 |
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| Prevalence of cervical dysplasia in western Uttar Pradesh |
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Kamna Gupta1, Nisha Puniya Malik1, Veena K Sharma1, Nidhi Verma1, Abhilasha Gupta2
1 Department of Pathology, Lala Lajpat Rai Memorial Medical College, Meerut, Uttar Pradesh, India
2 Department of Obstetrics and Gynaecology, Lala Lajpat Rai Memorial Medical College, Meerut, Uttar Pradesh, India
Click here for correspondence address and email
| Date of Web Publication | 6-Feb-2014 |
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 Abstract | | |
Introduction: Cervical intraepithelial neoplasia and cervical cancer remain important health problems. Cervical cytology by Papanicolaou (Pap) smears is an effective means of screening for cervical premalignant and malignant conditions.
Aim: The aim of this study was to assess the prevalence of cervical dysplasia in pre- and postmenopausal women in western Uttar Pradesh and to find out risk factors as far as possible.
Materials and Methods: A total of 4,703 cases were enrolled, cervical scrape smears were collected and stained using Papanicolaou's method and hematoxylin and eosin stain. The emphasis was put on epithelial abnormalities and smears were classified according to The Bethesda System 2001.
Results: 81.06% (3812) smears were satisfactory according to The Bethesda System. Maximum numbers of cases (40.37%) were in age group 30-39 years. The epithelial abnormalities constituted 3.23% of all cases. Low-grade squamous intraepithelial lesion (LSIL) formed the largest number (1.36%), while high-grade squamous intraepithelial lesion (HSIL) formed 0.91%. Eleven cases of squamous cell carcinoma (SCC) were detected. The study has shown a relatively high prevalence of epithelial abnormalities in cervical smears with increasing age, parity, early age at first coitus (<20 year), and lower socioeconomic status in symptomatic women with clinical lesions on per speculum examination.
Conclusion: Epithelial abnormalities of cervix are not uncommon in our setup and are associated with early age at marriage and parity. Keywords: Carcinoma cervix; cervical intraepithelial neoplasia; HSIL; LSIL; papanicolaou smear
How to cite this article:
Gupta K, Malik NP, Sharma VK, Verma N, Gupta A. Prevalence of cervical dysplasia in western Uttar Pradesh. J Cytol 2013;30:257-62 |
| Introduction | |  |
Carcinoma cervix worldwide accounts for 15% of all cancers diagnosed in women. [1] Cervical cancer is one of the leading cancer in women with the estimated 5.0 lakhs new cases every year of which 80% occur in developing countries. [2] In India, it is estimated that the number of new cases are over 140,000. [3] Cancer cervix occupies the top rank or second among cancers in women in developing countries, whereas in the affluent countries cancer cervix does not find a place even in top five leading cancers in women. Seventy percent or more of these cancers are in the stage 3 or higher at the time of diagnosis. The role of Papanicolaou (Pap) smear as a cancer screening tool for the cervix has been substantiated by several studies in the last 50 years, [4],[5] and the method has resulted in falling incidence and mortality of cervical cancer in the developed world. [6],[7],[8] Time trend analysis of a 10-year data in Bangalore, Bombay, and Madras and a 4-year data in Delhi did not reveal a statistically significant decrease or increase in the incidence of uterine cervical cancer for most of the age groups. [9] Therefore, the data on the prevalence of cervical epithelial abnormalities in various population in this country is not known. There is an urgent need for initiation of community screening and educational programs for the control and prevention of cervical cancer in India. [10]
Therefore, objective of this study was to assess the prevalence of cervical dysplasia in pre and postmenopausal women in western Uttar Pradesh.
| Materials and Methods | | |
A total of 4,703 cases were enrolled. Detailed clinical history and pelvic examination (per speculum and per vaginal) were done. Cervical scrape smears were collected using Ayer's spatula or endocervical brush, the smears were fixed in absolute alcohol and stained using Papanicolaou's method and hematoxylin and eosin (H and E) stain. The epithelial abnormalities were classified according to The Bethesda System 2001. [11] All the cases above 18 years of age were studied and grouped as pre- and postmenopausal. Pregnant women, menstruating women, women with invasive carcinoma at the time of clinical evaluation, and women previously treated for cervical neoplasm were excluded from the study.
| Results | | |
In our study, we had examined 4,703 cases; out of which 3,812 (81.06%) smears were satisfactory according to The Bethesda System. The epithelial cell abnormalities constituted 3.2% of all cases and rest of 3,690 cases (96.8%) fell in the category of negative for intraepithelial lesion or malignancy (NILM).
Maximum number of cases (40.37%) were in age group 30-39 years, followed by 35.96% in age group 20-29 years. The epithelial abnormalities including (atypical squamous and glandular cells of undetermined significance (ASCUS), atypical glandular cells of undetermined significance (AGUS), low-grade squamous intraepithelial lesion (LSIL), high-grade squamous intraepithelial lesion (HSIL), and squamous cell carcinoma (SCC)) constituted 3.2% of all cases. LSIL [Figure 1] formed the largest number 1.36%, while HSIL [Figure 2] formed 0.91%. Eleven cases of SCC were detected [Table 1]. Different risk factors associated with dysplasia and cervical carcinoma detected in the present study were analyzed in detail. The findings are summarized below. | Figure 1: Photomicrograph from a case of low-grade squamous intraepithelial lesion showing koilocytes (Pap, × 400)
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 | Figure 2: Photomicrograph showing high-grade squamous intraepithelial lesion (Pap, × 400)
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Age
The frequency of dysplasia and cervical carcinoma in relation to age is shown in [Table 2]. A progressive rise was seen in the frequency of cytopathological abnormalities with increasing age, and maximum frequency of LSIL, HSIL, and cervical carcinoma was observed in age above 40 years.
Age at first coitus
The frequency of dysplasia and cervical carcinoma in relation to age at first coitus is shown in [Table 3]. The frequency of LSIL was maximum in age group >30 years at first coitus, while HSIL and cervical carcinoma was maximum in patients who were <20 years at the time of first coitus.
Parity
The frequency of dysplasia and cervical carcinoma in relation to parity is shown in [Table 4]. There was progressive rise of dysplasia with increasing parity, it was maximum in parity above 3.
Gynecological symptoms
The frequency of dysplasia and cervical carcinoma in relation to gynecological symptoms is shown in [Table 5]. The frequency of dysplasia LSIL was higher in symptomatic women complaining of postcoital bleeding per vaginum, while frequency of HSIL and carcinoma cervix was highest with postmenopausal bleeding.
Per speculum findings
The frequency of dysplasia and cervical carcinoma in relation to per speculum finding is shown in [Table 6]. The frequency of dysplasia and carcinoma cervix was very high in women with clinical lesions of cervix and the difference was statistically highly significant (P < 0.01), thus it was amply clear that clinical lesions of cervix harbor a large number of dysplasia and if such women are subjected to mandatory cytological evaluation, the burden of carcinoma cervix can be significantly reduced. Prevalance of epithelial abnormalities were ASCUS 0.52%, atypical squamous cells-cannot exclude HSIL (ASC-H) 0.05%, AGUS 0.05%, LSIL 1.36%, HSIL 0.91%, and for SCC 0.28%.
Religion
Out of 3,812 cases; 2,744 smears (71.98%) were from Hindu patients while 1,060 smears (27.8%) belonged to Muslims and eight cases were from other religion. In Hindus, percentage positivity for LSIL and HSIL was 1.31 and 0.67%, respectively which was slightly higher in Muslims (LSIL 1.42%, HSIL 1.60%), but it was not statistically significant.
Socioeconomic status
All these 3,812 cases were classified according to Kuppuswamy classification into upper, middle, and lower class. Prevalence of LSIL, HSIL, and SCC in upper class was 1.31, 0.34, and 0; in middle class 1.02, 0.80, and 0.2%; in lower class it was 1.62, 0.94, and 0.4%, respectively. Though the percentage positivity of cervical dysplasia was higher in lower socioeconomic group but it was not statistically significant from the other two socioeconomic groups.
Smoking
The prevalence of dysplasia was more in smokers (17.24%) as compared to nonsmokers (2.61%), but the difference was not statistically significant. As the number of patients were very few who smoked, the association of smoking with dysplasia cannot be predicted.
| Discussio | | |
Uterine cervix is ideal for screening due to easy accessibility of cervix for inspection, palpation, exfoliative cytology, and screening. Cancer cervix is a preventable and curable disease due to effective screening methods available and a long preinvasive phase of the disease and various treatment modalities available. Cervical cancer screening represents one of the great success stories in cancer prevention.
We studied Pap smear More Detailss of 4,703 females. Out of which only 81.06% (3,812) were found to be satisfactory. Only 13.94% smears were unsatisfactory, the proportion of inadequate smears ranged from 0.2-5% [12],[13],[14],[15],[16] in other studies.
With reference to the epithelial abnormalities, which was the main reason for advocating routine cervical smear examination, the prevalence studies around the world has shown a wide range from as low as 0.98% [17] to as high as 15.6%. [18] No consistent pattern emerged in these studies both in developed and developing countries. Hence, within these countries such as US prevalence rates of cervical dysplasia range from 2.3-6.6% [19] in Middle East 1.65-7.9%, [20],[21],[22] in Israel 0.98 to 4.41%, [23],[24],[25] and in India 1.392-7.8% [26],[27],[28],[29] ; while in our study it was 3.23%.
The reasons for these variation could be many including criteria employed for diagnosis, the quality checks used, intrinsic differences in the population studied including the prevalence of risk factors and the numbers studied which have ranged from as few as 419 [18] to as high as 297,849. [17] A more detailed analysis showed the prevalence of LSIL (1.36%) was similar to many other studies from Zimbawe, Saudi Arabia, and USA. In our study, prevalence of LSIL was more common in premenopausal age group 40 years. It was noticed that in the majority of studies including ours, prevalence of HSIL formed less than 1% of the abnormal smears. Prevalence of HSIL was higher in postmenopausal women in our study.
The percentage of dysplastic smears was found to be very high in women who were married at age <20 years, thus high parity coupled with early age at first coitus appeared to play a significant role in progression of cervical dysplasia. The studies of Castapeda-Ipiguez et al., [30] have also pointed out the number of pregnancies as a great risk factor in the development of cervical dysplasia. As our study showed that frequency of cervical cancer was higher in women with postmenopausal bleeding, hence such women should always undergo mandatory cytological examination.
A large number of workers [31],[32] found smoking as one of the major risk factor. In our study, dysplasia was found to be slightly more frequent in smokers as compared to nonsmokers, but statistically the difference was not significant. As regards association of smoking with dysplasia, it is very difficult to comment upon as the number of smoker females were too less in this study. The role of circumcision and carcinoma of cervix has been emphasized by a large number of workers in the past [33],[34],[35] who reported carcinoma cervix to be more common in Hindus than in any other religion. The number of positive smears was more common in Muslims (3.20%) in comparison to Hindus (2.26%), but the difference was not statistically significant in this study. Terris et al., [36] also found no significant difference in the circumcision status of marital partners of cases and control. It has been documented earlier that cancer is common in low socioeconomic class in whom the component of poverty, overcrowding, inadequate food, and poor personal hygiene are contributing factors. The increased risk with low socioeconomic status is attributed to a lack of screening, failure to treat precancerous conditions, and lack of knowledge about prevention of human papillomavirus (HPV) infection. [37] In our study, an inverse relation with socioeconomic status was observed as also in other studies.
It has been established that low grade dysplasia is usually asymptomatic. The common complaints in high grade dysplasia are postmenopausal bleeding and intermenstrual and postcoital bleeding per vaginum. [38] In our study also, the most common complaint in both LSIL and HSIL was postcoital bleeding and postmenopausal bleeding per vaginum and on per speculum examination, most common finding was cervical polyp. In the past also, visual inspection of the cervix had been stressed by Sankaranarayanan et al. [39]
Thus screening of both pre and postmenopausal women should be made mandatory as it helps in picking of cases of cervical intraepithelial neoplasia (CIN) which can be treated easily with different treatment modalities and progression of cervical precursors to invasive cancer can be reduced, thus reducing the incidence of cancer cervix.
| Conclusion | | |
The study has shown a relatively high prevalence of epithelial abnormalities in cervical smears and conventional Pap smear is a good tool to find cervical dysplasia in population. Periodical cytological screening would go a long way in the early detection of various cervical lesions and help in reducing the incidence of cervical cancer.
| Acknowledgement | | |
Amit Jaiswal for preparation of manuscript
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Correspondence Address:
Nisha Puniya Malik
H.No. C-20, Jawahar Quaters, Near Begum Bridge, Meerut, Uttar Pradesh - 250 004
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0970-9371.126659
[Figure 1], [Figure 2]
[Table 1], [Table 2], [Table 3], [Table 4], [Table 5], [Table 6] |
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