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A Critique of
the Systematic Review
Of Induced
Abortion and Mental Health
Released by the
Royal College of Psychiatrists
Priscilla K.
Coleman, Ph.D.
December 13, 2011
The Royal
College of Psychiatrist’s recently conducted review of scientific literature published
from 1990 to the present on abortion and mental health is hauntingly similar to
the American Psychological Association Task Force Report released in 2008. The
report by the RCP is, however, far more complex and on the surface it may
appear to be more rigorous than the APA report. An enormous amount of time, energy, and expense has been
funneled into a work product that was not undertaken in a scientifically
responsible manner. In this critique, I provide evidence that should incite
scientists and clinicians to reject the conclusions of the report and work
together to provide an accurate and truly exhaustive review of the
peer-reviewed research.
Unjustified Dismissal
of Studies
The RCP review
incorporates four types of studies: 1) reviews of the literature; 2) empirical studies
addressing the prevalence of post-abortion mental health problems; 3) empirical
studies identifying risk factors for post-abortion mental health problems; and
4) empirical studies comparing mental health outcomes between women who choose
abortion and delivery. In each category, there are studies that are ignored and
large numbers of studies that are entirely dismissed for vague and/or
inappropriate reasons. With regard to the first type of study, only 3 reports are
considered (APA Task Force Report, 2008; Charles et al., 2008; Coleman, 2011).
The authors of the RCP report “missed” 19 reviews of the literature (listed at
the end of this document), published between 1990 and 2011. Moreover, no
criteria were identified for selection of particular reviews to discuss and to provide
context for the current report. In relation to the third type of study, only 27
studies are included in the RCP report. At the end of this document, citations
to 20 relevant and unmentioned articles published in highly respected peer-reviewed
journals are provided. They are not listed in Appendix 7 of the RCP report,
which contains all included and excluded studies.
Among the
scores of studies identified and excluded across study types 2 through 4 above,
the most common reasons are the nebulously defined “no usable data” and “less
than 90 days follow-up.” The latter resulted in elimination of 35 peer-reviewed
studies in each of the prevalence, risk factor, and comparison study types. The
RCP authors state that “Because the review
aimed to assess mental health problems and substance use and not transient
reactions to a stressful event, negative reactions and assessments of mental
state confined to less than 90 days following the abortion were excluded from
the review.” This is highly problematic for various reasons. First,
elimination of studies that only measured women’s mental health up to 90 days,
does not effectively remove cases of transient reactions. Just because the
authors of these dozens of studies did not follow the women long-term, it does
not mean that the women were not still suffering quite significantly beyond the
early assessment. Moreover, when investigating the mental health implications
of an event, it is logical to measure outcomes soon after the event has
occurred as opposed to waiting months or years to gather data. As more time
elapses between the stressor and the outcome(s), healing may naturally occur, there
may be events that moderate the effects, and more confounding variables may be
introduced. Finally, focusing only on mental health events that occur later in
time effectively misses the serious and more acute episodes that are effectively
treated soon after exposure.
Ironically,
many of the studies removed from the analyses due to the abbreviated length of
follow-up, had incorporated controls for prior psychological history and other
study strengths. As a result, the samples of studies included in each section
of the RCP review were not representative of the best available evidence and many
of the eliminated effects coincidentally revealed adverse post-abortion
consequences. In the category wherein the authors sought to derive prevalence
estimates, only 34 studies were retained, including 27 without controls for
previous mental health. In contrast, in the Coleman review, 14 out of the 22
studies had controls for psychological history.
Factual Errors
Perhaps even
more disturbing than the elimination of large segments of the literature, are
the factual inaccuracies that are present in the RCP report. As the author of
the Coleman (2011) review cited in the report, I was alarmed to see the content
in “Section 1.4.4: Summary of Key
Findings from the APA, Charles, and Coleman Reviews.” The first 6 points are
not reflective of the conclusions derived from the meta-analysis and the 7th
and final point in this section wrongly states, with reference to the
meta-analysis that “previous mental
health problems were not controlled for within the review.” In fact, as
noted above, the meta-analysis incorporated more studies into the final
analyses with controls for prior psychological problems than the current
review. Moreover, the conclusions derived from the meta-analysis were based on more
studies with controls for prior psychological history than the Charles and the
APA reviews as well.
I do not
have the time or interest in identifying all errors present, but a few others jumped
out at me. First, several studies are eliminated from the RCP report, because
the outcome(s) assessed are lifetime estimates of mental health problems, deemed
inappropriate by the RCP team. Nevertheless, the Coleman et al. (2009) and the
Mota et al. (2010) articles, which relied upon lifetime estimates, are included
in the prevalence section of the report. Inclusion reflects an inaccurate read
of the two studies. I also noticed my affiliation is stated as the Department
of Psychiatry at Bowling Green State University. I wish we had a medical
school, it would make retrieval of articles much less expensive, but
unfortunately we do not.
Problematic “Quality Assessments”
This review is
being pitched as methodologically superior to all previously conducted reviews,
largely because of the criteria employed to critique individual studies and to
rate the overall quality of evidence. However, the quality scales employed to
rate each individual study are not well-validated and require a significant
level of subjective interpretation, opening the results to considerable bias. The main problems with the quality scale
employed to rate the individual studies are as follows: 1) the categories used are
missing key methodological features including initial consent to participate
rates and retention of participants across the study period; 2) the relative
importance assigned to the included
criteria is arbitrary, as opposed to being based on consensus in the scientific
community; 3) the specific requirements for assigning a “+” or “-” within the
various categories are not provided; 4) the authors fail to explain (as their
predecessors, Charles et al. 2008 did) how combinations of pluses and minuses
in the distinct categories add up to an overall rating ranging from “Very Poor”
to “Very Good.” Incredulously, the Gilchrist et al. (1995) study received a
rating of “Good”, when very few controls for confounding 3rd variables were
employed, meaning the comparison groups may very well have differed
systematically with regard to income, relationship quality including exposure
to domestic violence, social support, and other potentially critical factors. Further
Gilchrist et al. reported retaining only 34.4% of the termination group and
only 43.4% of the group that did not request a termination at the end of the
study. No standardized measures for mental health diagnoses were employed and
evaluation of the psychological state of patients was reported by general
practitioners, not psychiatrists. The GPs were volunteers and no attempt was
made to control for selection bias. Despite these facts, the study received a
mark of “+ thorough” for confounder control, a “+” for representativeness, and
a “+” for validated tools. I can provide a similar rebuttal to many more of the
individual study ratings provided by the RCP; and the reader should not trust these
“quality” assessments.
Similarly,
when it came to evaluating the quality of evidence associated with specific
outcomes, such as anxiety, depression, suicide ideation, drug or alcohol abuse,
psychiatric treatment, etc. with regard to the comparative studies, “Grade
Working Group grades of evidence” were employed by the RCP. The anchors on this
scale are vague and oftentimes only one reason is identified as the basis for a
“Very Low” rating. For example, in
the category of “Any Psychiatric Treatment,” which actually only included the
Munk-Olsen et al. study (p.104), the basis for the “Very Low” (very uncertain
about the estimate) rating was not controlling for pregnancy intention. As if
this isn’t problematic enough, when the study is again evaluated (see pages 198
and 199), it is rated as “Good” in the comparison category. There are loose,
poorly conceived rationales and inconsistencies like this throughout the report
and the problem lies in the application of an inadequate quality assessment
protocol for individual studies and for the body of evidence.
Faulty Conclusions
Each section in
the RCP report includes conclusions that are based on a very small number of
studies that are not properly rated for quality. The results should, therefore,
not be trusted as a basis for professional training protocols or health care
policy initiatives. To illustrate how incomplete and misleading the conclusions
provided by the RCP are, I will use one example. I recently identified 119
studies published between 1972 and 2011 using the MEDLINE, PubMed, and PsycINFO data bases specifically related
to risk-factors associated with post-abortion psychological health. Below is a list of the most common risk
factors derived from the 119 peer-reviewed journal articles identified.
a.
Timing
during adolescence or younger age (18 studies confirm: 2 studies do not)
b.
Religious,
frequent church attendance, personal values conflict with abortion (18
studies confirm; 1 study does not)
c.
Decision
ambivalence or difficulty, doubt once decision was made, or high degree of
decisional distress (29 studies confirm; 3 studies do not)
d.
Desire
for the pregnancy, psychological investment in the pregnancy, belief in the
humanity of the fetus and/or attachment to fetus (21
studies confirm; 1 does not)
e.
Negative
feelings and attitudes related to the abortion (16
confirm; 1 does not)
f.
Pressure
or coercion to abort (10 studies confirm; 1 does not)
g.
Conflicted,
unsupportive relationship with father of child (24
confirm; 6 do not)
h.
Conflicted,
unsupportive relationships with others (28 confirm; 7 do not)
i.
Character
traits indicative of emotional immaturity, emotional instability, or
difficulties coping including low self-esteem, low self-efficacy, problems
describing feelings, being withdrawn, avoidant coping, blaming oneself for
difficulties etc. (42 studies confirm; 1 study does not)
j.
Pre-abortion
mental health/psychiatric problems (35 studies confirm; 3 studies do not)
k.
Indicators
of poor quality abortion care (feeling misinformed/inadequate
counseling, negative perceptions of staff, etc.) (10 studies confirm)
The RCP conclusions relative to studies
addressing risk factors for post-abortion mental health problems make no
mention of most of the variables described above. They simply state (based on
27 studies) that “The most reliable
predictor of post-abortion mental health problems is having a history of mental
health problems prior to abortion” and “A range of other factors produced more
mixed results, although there is some suggestion that life events, pressure from
a partner to have an abortion, and negative attitudes towards abortion in
general and towards a woman’s personal experience of the abortion, may have a
negative impact on mental health.” I am one academic,
without a lab full of graduate students and with a heavy teaching load (not a
Department of Psychiatry), yet I was able to find all these studies. Why wasn’t
this high powered research team able to do a better job? Simply glancing at
titles and abstracts to determine which studies merit further attention will
not yield the information needed and resulted in a short-sighted view of the
available evidence.
Before I leave this section on
poorly developed conclusions, I should note how curious it was to read one of the
conclusions under the risk factor section: “Women
who show a negative emotional reaction immediately following an abortion are
likely to have a poorer mental health outcome.” How can this “conclusion”
be derived if studies that only examined women in the first 3 months following
abortion were eliminated? Moreover, if this is true, why would these studies have
been eliminated in the first place? Shouldn’t the researchers be most concerned
with those most likely to be adversely impacted?
Appropriateness of Meta-Analysis
Counter to the claims
of the authors of this report, a quantitative review or meta-analysis can be
performed when there is heterogeneity present in the effects one wishes to
summarize. The random effects model is specifically designed to address heterogeneity.
In addition, separate
meta-analyses, based on distinct comparison groups and outcomes can be
performed. There is no excuse not to perform extensive meta-analyses from the
vast literature that has accumulated. Such an approach is much more reliable and the results derived
yield more valid conclusions than a narrative review; data that can be
translated more readily into practice.
A Call for
Change
The bottom-line conclusion of the RCP review,
based on only 4 studies, is that abortion is no riskier to women’s mental
health than unintended pregnancy delivered. When this report was released a few
days ago, several of my colleagues emailed “Here we go again…” Many of us are
left wondering, how many of these purposefully driven “systematic reviews” have
to be published with results splashed all over the world, before women’s psychological health will
finally take precedence over political, economic, and ideological agendas? This report constitutes no less than a
crafty abuse of science and if the merits of this report are not seriously
challenged, we will shamefully grow more distant from our ability to meet the needs
of countless women. Until there is acknowledgement than scores of women suffer
from their decision to undergo an abortion, we will remain in the dark ages
relative to the development of treatment protocols, training of professionals,
and our ability to compassionately assist women to achieve the understanding
and closure they need to resume healthy lives.
Narrative
Reviews Not Addressed
1)
Adler NE, David HP, Major BN, Roth SH, Russo NF, Wyatt GE.
Science 1990 6; 248(4951):41-4. Psychological responses after abortion.
2)
Adler NE, David HP, Major BN, Roth SH, Russo NF, Wyatt GE.
Psychological factors in abortion. A review. Am Psychol. 1992;47(10):1194-204.
3)
Adler NE, Ozer EJ, Tschann J. Abortion among adolescents. Am
Psychol. 2003; 58(3):211-7.
4)
Allanson S, Astbury JJ. Psychosom Obstet Gynaecol.
1995;16(3):123-36.The abortion decision: reasons and ambivalence.
5)
Bhatia MS, Bohra N. The other side of abortion. Nurs J
India. 1990; 81(2):66, 70.
6)
Cameron S. Induced abortion and psychological sequelae. Best
Practice & Research. Clinical Obstetrics & Gynaecology 2010; Vol. 24
(5), pp. 657-65.
7)
Coleman PK, Reardon DC, Strahan T, Cougle R. The psychology of abortion: A review
and suggestions for future research. Psychology & Health 2005; 20(2),
p237-271.
8)
Dagg PK. The psychological sequelae of therapeutic
abortion--denied and completed. Am J Psychiatry. 1991;148(5):578-85.
9)
Harris AA. Supportive counseling before and after elective
pregnancy termination. Midwifery
Women’s Health. 2004; 49(2):105-12.
10)
Lie ML, Robson SC, May CR. Experiences of abortion: a
narrative review of qualitative studies. BMC Health Serv Res. 2008; 8:150.
11)
Lipp A. Termination of pregnancy: a review of psychological
effects on women. Nursing Times 2009; 105 (1), pp. 26-9.
12)
Major B, Appelbaum M, Beckman L, Dutton MA, Russo NF, West
C. Abortion and mental health: Evaluating the evidence. Am Psychol. 2009; 64(9):863-90.
13)
Major B, Cozzarelli C.
Psychosocial Predictors of Adjustment to Abortion. Journal of Social
Issues 1992; 48 (3), p121-142.
14)
Robinson GE, Stotland NL, Russo NF, Lang JA, Occhiogrosso M.
Is there an "abortion trauma syndrome"? Critiquing the evidence.
Harvard Review of Psychiatry 2009; 17 (4), pp. 268-90.
15)
Rosenfeld JA. Emotional responses to therapeutic abortion.
Am Fam Physician. 1992; 45(1):137-40.
16)
Speckland A., Rue V. Complicated Mourning: Dynamics of
Impacted Pre and Post-Abortion Grief," Pre and Perinatal Psychology
Journal 1993; 8 (1):5-32.
17)
Stotland NL.Clin Obstet Gynecol. Psychosocial aspects of
induced abortion.1997 Sep;40(3):673-86.
18)
Turell SC, Armsworth MW, Gaa JP. Emotional response to
abortion: a critical review of the literature. Women Ther. 1990;9(4):49-68.
19)
Zolese
G, Blacker CV. The psychological complications of therapeutic abortion.
Br J Psychiatry.
1992; 160:742-9.
Studies
of Statistically Validated Risk Factors Not Addressed
1)
Allanson S. Abortion decision and ambivalence: Insights via
an abortion decision balance sheet. Clinical Psychologist 2007; 11 (2), p50-60.
2)
Brown D, Elkins TE, Larson DB. Prolonged grieving after
abortion: a descriptive study. J Clin Ethics 1993; 4(2):118-23.
3)
Fielding SL, Schaff EA. Social context and the experience of
a sample of U.S. women taking RU-486 (mifepristone) for early abortion.
Qualitative Health Research 2004; 14 (5), pp. 612-27.
4)
Hill RP, Patterson MJ, Maloy K. Women and abortion: a
phenomenological analysis. Adv Consum Res. 1994; 21:13-4.
5)
Kero A, Lalos A. Ambivalence--a logical response to legal
abortion: a prospective study among women and men. J Psychosom Obstet Gynaecol.
2000; 21(2):81-91.
6)
Linares LO, Leadbeater BJ, Jaffe L, Kato PM, Diaz A.
Predictors of repeat pregnancy outcome among black and Puerto Rican adolescent
mothers. J Dev Behav Pediatr. 1992;13(2):89-94.
7)
Mufel N,
Speckhard AC, Sivuha S. Predictors of posttraumatic stress disorder
following abortion in a former Soviet Union country. Journal of Prenatal &
Perinatal Psychology & Health 2002; 17(1), pp. 41-61.
8)
Osler M, David HP, Morgall JM. Multiple induced abortions:
Danish experience. Patient Educ Couns. 1997; 31(1):83-9.
9)
Østbye T, Wenghofer EF, Woodward CA, Gold G, Craighead J.
Health services utilization after induced abortions in Ontario: a comparison
between community clinics and hospitals. American Journal of Medical Quality
2001; 16 (3), pp. 99-106.
10)
Prommanart N, Phatharayuttawat S, Boriboonhirunsarn D,
Sunsaneevithayakul P. J Maternal grief after abortion and related factors. Med
Assoc Thai. 2004;87(11):1275-80.
11)
Remennick L, Segal R. Socio-cultural context and women's
experiences of abortion: Israeli women and Russian immigrants compared.
Culture, Health & Sexuality 2001; 3(1), p49-66.
12)
Slade P, Heke S, Fletcher J, Stewart P. Termination of
pregnancy: patients' perceptions of care. J Fam Plann Reprod Health Care.
2001;27(2):72-7.
13)
Tamburrino MB, Franco KN, Campbell NB, Pentz JE, Evans CL,
Jurs SG. Postabortion dysphoria and religion. South Med J. 1990;83(7):736-8.
14)
Thomas T, Tori CD. Sequelae of abortion and relinquishment
of child custody among women with major psychiatric disorders. Psychol Rep.
1999; 84(3 Pt 1):773-90.
15)
Törnbom M, Ingelhammar E, Lilja H, Möller A, Svanberg Repeat
abortion: a comparative study. B.J Psychosom Obstet Gynaecol. 1996;
17(4):208-14.
16)
van Emmerik AA, Kamphuis JH, Emmelkamp PM. Clin Psychol
Psychother. 2008; 15(6):378-85.
17)
Vukelić J, Kapamadzija A, Kondić B. Investigation of risk
factors for acute stress reaction following induced abortion. ed Pregl. 2010;
63(5-6):399-403.
18)
Wiebe
ER; Adams LC. Women's experience of viewing the products of conception after an
abortion. Contraception 2009; 80 (6), pp. 575-7.
19)
Wiebe ER, Trouton KJ, Fielding SL, Grant H, Henderson A.
Anxieties and attitudes towards abortion in women presenting for medical and
surgical abortions. J Obstet Gynaecol Can. 2004;26(10):881-5.
20)
Wells N. Pain and distress during abortion Health Care Women
Int. 1991; 12(3):293-302.
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