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Original Investigation |

Reported Pain Following Mammography Screening FREE

Penny C. Sharp, EdD; Robert Michielutte, PhD; Rita Freimanis, MD; Louise Cunningham, MPH; John Spangler, MD, MPH; Virginia Burnette, BS
[+] Author Affiliations

From the Departments of Family and Community Medicine (Drs Sharp, Michielutte, and Spangler, and Mss Cunningham and Burnette) and Radiology (Dr Freimanis), Wake Forest University School of Medicine, Winston-Salem, NC. The authors have no relevant financial interest in this article.


Arch Intern Med. 2003;163(7):833-836. doi:10.1001/archinte.163.7.833.
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Published online

Background  Mammography screening for asymptomatic older women has been shown to be effective in reducing breast cancer mortality. Physicians and patients report pain as a major barrier for many women in the screening process; however, few studies report both the degree and type of pain women experience during the screening.

Methods  Two hundred women 40 years and older were interviewed immediately following screening mammography. They were questioned about the pain they experienced, the difference between their experience and their expectations, and the most stressful part of the entire procedure.

Results  Seventy-two percent of the women reported the pain to rank 4 or less on a scale of 0 to 10 (mean ± SD score, 2.95 ± 2.09). The highest level of pain reported resulted from the compression of the breasts (3.25 ± 2.43). Ninety-six percent reported that the pain was "less than" or "about as expected." Most (94%) said they were "very likely or somewhat likely to get a mammogram next year." The most stressful part of the procedure was waiting for the results, according to 39% of the women.

Conclusions  The relatively low level of pain reported is useful information for both patients and practitioners. Adherence to screening recommendations is more likely to occur when both parties are able to anticipate the most painful and stressful elements of mammography.

Figures in this Article

BREAST CANCER is the leading cancer in women, with an estimated 203 500 new cases of invasive cancer and 54 300 new cases of in situ breast cancer in 2002.1 It is the second-leading cause of cancer death in women, with an estimated 40 000 deaths in 2002.1 Cancer of the breast is responsible for approximately 31% of new cancers in women and 15% of the deaths due to cancer. Age is the most important risk factor for breast cancer, with both morbidity and mortality increasing after 40 years. The largest increase occurs after 60 years of age.2

Breast cancer is one of the most preventable causes of cancer morbidity if it is detected early and treated appropriately. Mortality from breast cancer has decreased significantly between 1992 and 1998 and the decrease is partially attributed to earlier detection and better treatments.1 The 5-year survival rate is 96% for localized breast cancer and 78% for cancers that have spread regionally; but for women with distant metastases, the survival rate drops to 21%.1

The 3 major screening modalities for breast cancer are breast self-examination, clinical breast examination, and mammography. Studies support the value of screening mammography for women 50 years and older and of clinical breast examination for all adult women as effective means of detecting breast cancer.39 The benefit of breast self-examination has not been as clearly demonstrated.812 Although there is some inconsistency in guidelines among health organizations, most recommend that annual clinical breast examination begin at the latest when women are 40 years old, and that yearly mammography begin when they are 50 years old.8,12

Estimates of behaviors regarding breast cancer screening vary, and although there is evidence that more women are taking advantage of screening opportunities,13 a general consensus exists that screening for breast cancer is underutilized.12,1416 It is especially important to note that older women, who are at highest risk for both morbidity and mortality from breast cancer, use screening mammography the least. Most studies report that women who are 60 years and older are less likely than younger women to have ever had screening mammography or to have been recently screened,12,1419 despite the fact that both the sensitivity and positive predictive value of mammography is greater for older women.20

Explanations for why older women are less likely to be screened are complex; however, lack of physician recommendation appears to be particularly important.2123 Barriers consistently reported in surveys of physicians include cost of mammography, reliability of readings, patient discomfort, patient refusal, low yield, physician forgetfulness, and confusion over guidelines.24

Based on the need to increase breast cancer screening among older women, a community education program was funded by the National Cancer Institute in 1999. The Program to Increase Screening Mammography (PRISM), a 3-year project, was designed to recruit women 65 years and older who receive care in private primary care practices. The 43 participating practices were randomized to receive either the educational program on breast cancer screening or a control program on skin cancer education.

Before initiation of the program, focus groups of women aged 65 to 80 years were asked to determine their perceptions of barriers to mammography screening. In addition, a needs assessment of the physicians enrolled in the project was conducted. Both women and physicians listed "pain during mammography" as a barrier to screening for many women. In addition, older women were more likely than younger women to mention pain as a barrier. Because both physicians and patients regard pain as one of the most important barriers, and one that needs to be addressed in any educational program, we decided to conduct a study to obtain detailed information on pain experienced during the mammography procedure, and to determine if pain is related to age.

Several studies have examined pain associated with mammography in different settings and at various times following mammography examinations. Dullum et al25 interviewed 1800 women 3 to 145 days (mean, 21 days) following a screening mammography. Fifty-two percent of their sample reported experiencing moderate to extreme discomfort during the procedure (on a scale where 0 indicates no pain and 4 extreme pain). In another study conducted by Keemers-Gels et al,26 954 women were asked to complete questionnaires immediately following mammography screening, again using a 4-item pain scale. While only 9.3% reported severe pain, 21.6% reported moderate pain.

Bruyninckx et al 27 asked women to complete 3 questionnaires in their study, one immediately before, the second immediately after, and the third several weeks after the procedure. The pain scale used was a 10-point scale with 0 indicating "no pain at all" and 10 indicating "very severe pain." Seventy-five percent of the women reported pain during the procedure. Despite the use of the pain scale, the reported results focused on the occurrence rather than the intensity of pain; therefore, there was no indication of the degree of pain that women experienced.

While all of the reviewed studies certainly add to the knowledge about pain associated with mammography, more information is needed concerning the degree of pain women anticipate compared with the actual pain they feel. In addition, it would be helpful to understand the pain experienced during the different stages of the procedure, and the relative importance of pain as part of the overall process of mammography screening.28

This study was designed to (1) address the issues surrounding the degree of pain that women reported immediately following the procedure; (2) determine whether pain was the most stressful part of the process of obtaining a mammogram; and (3) examine the association of medical and physical factors with pain during the mammography procedure.

Following the approval of the protocol by the institutional review board, 200 women were recruited from the Breast Screening Center at the Wake Forest University Baptist Medical Center from August to November 2001. All mammography examinations were performed on a Lorad MIV mammographic unit (Lorad Corp, Danbury, Conn) by experienced mammography technologists using standard procedures. Representative days of clinic operation were selected and adhered to during the 4-month period. All women 40 years and older who had a screening mammography performed were approached immediately after the procedure by a trained female research assistant and asked to participate in the study. Of the 223 eligible women, 200 (89.7%) completed the interview.

During the 13 interview sessions, 368 women participated in mammography screening at the facility. Among them, 23 who were approached by the research assistant were younger than 40 years, and 122 were never approached owing to scheduling conflicts (ie, while the research assistant was interviewing one woman, another completed her screening procedure and left). A small proportion of the 122 women were probably younger than 40 years and would not have been eligible if approached; however, we did not collect information on the women who did not give consent for the study.

After obtaining verbal informed consent as approved by the institutional review board, the staff member asked the women about the amount of pain they experienced during the procedure on a 0-to-10 numeric analog scale ("This shows a scale representing pain, where 0 is no pain at all; 10 is the worst pain you have ever felt; and 5 is about average: for example, a mild headache or shoes that are a little too tight"). To determine the primary sources of pain, women were asked about pain when raising their arm; pain when the skin was pulled during placement of the breast on the plate and during compression; pain in the breast during compression; and pain in the ribs or breast bone from pressing against the plate.

The likelihood of obtaining a mammogram within the next year and the source of the greatest stress surrounding mammography also were queried. Basic demographic information was collected, along with physical characteristics such as height, weight, and bra size. Women also were questioned regarding the amount of caffeine consumed in the past 3 days and how this differed from the amount they normally consume.

Data were analyzed using means ± SDs for metric variables, frequencies for nominal variables, and percentages for ordinal variables. Ordinary least squares multiple regression analysis was used to identify the most important predictors of pain. All analyses were conducted using the SPSS PC Statistical Package for Windows, version 10.07 (SPSS Inc, Chicago, Ill).

Demographics of the sample of women participating in mammography screening are presented in Table 1. Briefly, the women ranged in age from 40 to 98 years (59.2 ± 12.8 years), 82% were white, and 84% had a high school education or more.

Table Graphic Jump LocationTable 1. Characteristics of Participants

Seventy-two percent of the women whose answers are summarized in the following tablulation reported overall pain associated with the mammogram as a score of less than or equal to 4 on a 10-point scale:

When asked to describe the pain during each part of the procedure, they rated the average pain from raising their arm to get into position for the procedure; from their skin being stretched; from the plate pressing against the ribs or sternum; and from compression of the breast. The major source of pain was from the actual compression of the breast during the procedure (mean ± SD, 3.25 ± 2.43). The percentages of women who rated overall pain or pain related to a specific aspect of the procedure at a score of 5 or greater are presented in Figure 1.

Place holder to copy figure label and caption

Percentage of women who rated overall pain or pain related to a specific aspect of the procedure at a score of 5 or greater.

Graphic Jump Location

Pain was not related to age or ethnicity. Premenopausal women (n = 47) experienced a significant increase in pain that was related to the proximity of their last menstrual period; those whose last period occurred within 8 to 14 days reported more pain (P = .02).

When asked how likely it was that they would get a mammogram next year, 94% reported that they were either "very likely" or "somewhat likely" to do so. Only 2% of them reported that they were unlikely to have another mammography examination in a year, and they were primarily younger women.

Women were asked what bothered them the most about the entire process of obtaining a mammogram. The most stressful part of the process was "waiting for the results," followed by "actually having the mammography done." The responses are shown in Table 2.

Table Graphic Jump LocationTable 2. Variables in Mammography Procedure That Bother Women

A common recommendation for women concerned about pain during mammography is to decrease the amount of caffeine consumed for several days before the procedure. Women were asked the number of caffeine-containing drinks they had in the past 3 days and if it was more, less, or the same as they normally drink. Only 3.5% of the women said they changed their caffeine habits because of their scheduled mammography; however, there was no correlation between amount of caffeine consumed and reported pain.

Multivariate analysis of the demographic, physical, medical, and behavioral characteristics indicated that, except for proximity to menstruation in premenopausal women, pain was not associated with any of the characteristics considered. Age, race, education, breast size, body mass index, caffeine intake, presence of other medical problems, self rating of health status, or self-reported sensitivity to pain were not associated with actual pain or pain during specific parts of the mammography procedure.

Mammography is an important tool for breast cancer screening; therefore, removing any barriers that may impede the process is important. Pain is a common barrier listed by both physicians and patients but the extent of the actual pain experienced by women has been difficult to determine. This study questioned women immediately following screening mammography to determine the amount of pain they experienced. The results suggest that the actual pain experienced and reported immediately following mammography is relatively low (an average score of 3 on a 0-10 scale) and most women reported that the pain was "less than" or "about as expected." In addition, the amount of pain experienced would not deter 94% of the women from returning for mammography screening the next year.

In this study, only 7 women cut back on their caffeine consumption in preparation for the procedure. It appears that women ignore the often-given advice; however, there was no correlation between the amount of caffeine consumed and the degree of pain reported. Given that many women appear to enjoy their caffeine and that the level of pain reported was low, this may not be an important issue in patient education.

Although women often express beliefs relating pain to breast size during mammography, we found no correlation between size of breast (bra size or cup size) and reported pain. It may be reassuring, especially to women who are concerned about breast size and pain, that in this study breast size was not related to the level of reported pain.

This study found that waiting for the results of a mammography was the most stressful part of the process. This finding emphasizes the need for additional education on how long it will probably take before the results are available. Any measures that can be instituted to minimize this waiting period would be helpful in lessening this source of stress. It would also be helpful to point out to women that 5% to 10% of those who are screened are recalled for further testing; that about 15% of those recalled will have a biopsy performed; and that approximately one third of biopsy results reveal cancer. This gives a cancer rate of 5/1000 among women screened.

Women expressing particular concerns about potential pain may benefit from additional counseling citing the results of this study. It is possible to give them more specific information on the degree of pain they might expect because of the analogy we provide while rating the pain on the 0-to-10 scale ("5 is about average: for example, a mild headache or shoes that are a little too tight"). Almost three fourths of the women described the pain as less than this average referent.

Corresponding author and reprints: Penny C. Sharp, EdD, Department of Family and Community Medicine, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157-1084 (e-mail: psharp@wfubmc.edu).

Accepted for publication July 3, 2002.

This study was supported by grant RO1 CA79746 from the National Cancer Institute, Bethesda, Md.

This study was presented at the 15th Scientific Meeting of the European Association for Cancer Education, Nijmegen, the Netherlands, May 3, 2002.

American Cancer Society,  Cancer Facts & Figures, 2002.  Atlanta, Ala American Cancer Society Inc2002;
Miller  BARies  LAHankey  BF  et al.   SEER Cancer Statistics Review: 1973-1990.   Bethesda, Md National Cancer Institute1993;NIH publication 93-2789.
Eddy  DMHasselblad  VMcGivney  WHendee  W The value of mammography screening in women under age 50 years. JAMA. 1988;2591512- 1219
Link to Article
Shapiro  S Evidence on screening for breast cancer from a randomized trial. Cancer. 1977;39(6 suppl)2772- 2782
Link to Article
Baker  LH Breast cancer detection demonstration project: five-year summary report. CA Cancer J Clin. 1982;32194- 225
Link to Article
Moskowitz  M Screening for breast cancer: how effective are our tests? a critical review. CA Cancer J Clin. 1983;3326- 29
Link to Article
Taylor  VTaplin  SUrban  N Controversies in the use of screening mammography. Wash Public Health. 1992;41- 4356
Fisher  Med  Guide to Clinical Preventive Services: An Assessment of the Effectiveness of 169 Interventions.  Baltimore, Md Williams & Wilkins1989;
Greenwald  PNasca  PCLawrence  CE Estimated effect of breast self-examination and routine physician examinations on breast cancer mortality. N Engl J Med. 1978;299271- 273
Link to Article
Huguley  CMBrown  RL The value of breast self-examination. Cancer. 1981;47989- 995
Link to Article
Foster  RSConstanza  MC Breast self-examination practices and breast cancer survival. Cancer. 1984;53999- 1005
Link to Article
Department of Health and Human Services,  Healthy People 2000: National Health Promotion and Disease Prevention Objectives.  Washington, DC US Government Printing Office1991;DHHS publication (PHS) 91-50212.
American Cancer Society,  Breast Cancer Facts and Figures: American Cancer Society: 1999-2000.  Atlanta, Ga American Cancer Society Inc1999;
Zapka  JGStoddard  AMCostanza  MEGreene  HL Breast cancer screening by mammography: uilization and associated factors. Am J Public Health. 1989;791499- 1502
Link to Article
The NCI Breast Cancer Screening Consortium, Screening mammography: a missed clinical opportunity? JAMA. 1990;26454- 58
Link to Article
Harris  RPFletcher  SWGonzalez  JJ  et al.  Mammography and age: are we targeting the wrong women? Cancer. 1991;672010- 2014
Link to Article
Lerman  CRimer  BTrock  BBalshem  AEngstrom  PF Factors associated with repeat adherence to breast cancer screening. Prev Med. 1990;19279- 290
Link to Article
Burg  MALane  DSPolednak  AP Age group differences in the use of breast cancer screening tests: the effects of health care utilization and socioeconomic variables. J Aging Health. 1990;2514- 530
Link to Article
Makuc  DMFried  VMParsons  PE  Health Insurance and Cancer Screening Among Women.  Hyattsville, Md National Center for Health Statistics1994;Advance Data from Vital and Health Statistics, No. 254.
Kopans  DB Screening mammography in women over age 65. J Gerontol. 1992;47(special issue)59- 62
Grady  KELemkau  JPMcVay  JMReisine  ST The importance of physician encouragement in breast cancer screening of older women. Prev Med. 1992;21766- 780
Link to Article
Costanza  ME The extent of breast cancer screening in older women. Cancer. 1994;742046- 2050
Link to Article
Fox  SAMuratra  PJStein  JA The impact of physician compliance on screening mammography for older women. Arch Intern Med. 1991;15150- 56
Link to Article
Weinberger  MSanders  AFBearon  LB  et al.  Physician-related barriers to breast cancer screening in older women. J Gerontol. 1992;47(special issue)111- 117
Dullum  JRLewis  ECMayer  JA Rates and correlates of discomfort associated with mammography. Radiology. 2000;214547- 552
Link to Article
Keemers-Gels  MEGroenendijk  RPRvan den Heuvel  JHM  et al.  Pain experienced by women attending breast cancer screening. Breast Cancer Res Treat. 2000;60235- 240
Link to Article
Bruyninckx  EMortelmans  DVan Goethem  MVVan Hove  EV Risk factors of pain in mammography screening. Soc Sci Med. 1999;49933- 941
Link to Article
Aro  ARde Koning  HJAbsetz  PSchreck  M Psychosocial predictors of first attendance for organized mammography screening. J Med Screen. 1999;682- 88
Link to Article

Figures

Place holder to copy figure label and caption

Percentage of women who rated overall pain or pain related to a specific aspect of the procedure at a score of 5 or greater.

Graphic Jump Location

References

American Cancer Society,  Cancer Facts & Figures, 2002.  Atlanta, Ala American Cancer Society Inc2002;
Miller  BARies  LAHankey  BF  et al.   SEER Cancer Statistics Review: 1973-1990.   Bethesda, Md National Cancer Institute1993;NIH publication 93-2789.
Eddy  DMHasselblad  VMcGivney  WHendee  W The value of mammography screening in women under age 50 years. JAMA. 1988;2591512- 1219
Link to Article
Shapiro  S Evidence on screening for breast cancer from a randomized trial. Cancer. 1977;39(6 suppl)2772- 2782
Link to Article
Baker  LH Breast cancer detection demonstration project: five-year summary report. CA Cancer J Clin. 1982;32194- 225
Link to Article
Moskowitz  M Screening for breast cancer: how effective are our tests? a critical review. CA Cancer J Clin. 1983;3326- 29
Link to Article
Taylor  VTaplin  SUrban  N Controversies in the use of screening mammography. Wash Public Health. 1992;41- 4356
Fisher  Med  Guide to Clinical Preventive Services: An Assessment of the Effectiveness of 169 Interventions.  Baltimore, Md Williams & Wilkins1989;
Greenwald  PNasca  PCLawrence  CE Estimated effect of breast self-examination and routine physician examinations on breast cancer mortality. N Engl J Med. 1978;299271- 273
Link to Article
Huguley  CMBrown  RL The value of breast self-examination. Cancer. 1981;47989- 995
Link to Article
Foster  RSConstanza  MC Breast self-examination practices and breast cancer survival. Cancer. 1984;53999- 1005
Link to Article
Department of Health and Human Services,  Healthy People 2000: National Health Promotion and Disease Prevention Objectives.  Washington, DC US Government Printing Office1991;DHHS publication (PHS) 91-50212.
American Cancer Society,  Breast Cancer Facts and Figures: American Cancer Society: 1999-2000.  Atlanta, Ga American Cancer Society Inc1999;
Zapka  JGStoddard  AMCostanza  MEGreene  HL Breast cancer screening by mammography: uilization and associated factors. Am J Public Health. 1989;791499- 1502
Link to Article
The NCI Breast Cancer Screening Consortium, Screening mammography: a missed clinical opportunity? JAMA. 1990;26454- 58
Link to Article
Harris  RPFletcher  SWGonzalez  JJ  et al.  Mammography and age: are we targeting the wrong women? Cancer. 1991;672010- 2014
Link to Article
Lerman  CRimer  BTrock  BBalshem  AEngstrom  PF Factors associated with repeat adherence to breast cancer screening. Prev Med. 1990;19279- 290
Link to Article
Burg  MALane  DSPolednak  AP Age group differences in the use of breast cancer screening tests: the effects of health care utilization and socioeconomic variables. J Aging Health. 1990;2514- 530
Link to Article
Makuc  DMFried  VMParsons  PE  Health Insurance and Cancer Screening Among Women.  Hyattsville, Md National Center for Health Statistics1994;Advance Data from Vital and Health Statistics, No. 254.
Kopans  DB Screening mammography in women over age 65. J Gerontol. 1992;47(special issue)59- 62
Grady  KELemkau  JPMcVay  JMReisine  ST The importance of physician encouragement in breast cancer screening of older women. Prev Med. 1992;21766- 780
Link to Article
Costanza  ME The extent of breast cancer screening in older women. Cancer. 1994;742046- 2050
Link to Article
Fox  SAMuratra  PJStein  JA The impact of physician compliance on screening mammography for older women. Arch Intern Med. 1991;15150- 56
Link to Article
Weinberger  MSanders  AFBearon  LB  et al.  Physician-related barriers to breast cancer screening in older women. J Gerontol. 1992;47(special issue)111- 117
Dullum  JRLewis  ECMayer  JA Rates and correlates of discomfort associated with mammography. Radiology. 2000;214547- 552
Link to Article
Keemers-Gels  MEGroenendijk  RPRvan den Heuvel  JHM  et al.  Pain experienced by women attending breast cancer screening. Breast Cancer Res Treat. 2000;60235- 240
Link to Article
Bruyninckx  EMortelmans  DVan Goethem  MVVan Hove  EV Risk factors of pain in mammography screening. Soc Sci Med. 1999;49933- 941
Link to Article
Aro  ARde Koning  HJAbsetz  PSchreck  M Psychosocial predictors of first attendance for organized mammography screening. J Med Screen. 1999;682- 88
Link to Article

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