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that is reduced with testosterone replacement.
7
Because both
Turner syndrome groups in this study had ovarian failure,
sex ster oids ar e not likely contributors to the present findings.
Limitations of this study include a relatively small sample
size. As an obser vational study, results could be due to un-
measured confounders. The cross-sectional design limits in-
ferences about causality. While interpretation of the P val-
ues should consider that there were 6 comparisons, the
parallel increases in plasma lipids and abdominal adiposity
are biologically consistent. Additional research is needed to
confirm these findings and to extend them to X chromo-
some effects in normal men and women.
However, these results suggest a role of X chromosome
gene dosage in metabolic regulation that could be ex-
plained by the imprinting (silencing) of maternally trans-
mitted X-linked genes that normally prevent visceral fat ac-
cumulation, or imprinting of paternally transmitted X-linked
genes that normally promote visceral fat accumulation. Iden-
tification of these putative imprinted X-linked genes and
elucidation of the epigenetic mechanisms involved in their
differential expression could have implications for cardio-
vascular health.
Phillip L. Van, MS
Vladimir K. Bakalov, MD
Developmental Endocrinology Branch
National Institute of Child Health and Human Development
National Institutes of Health
Bethesda, Md
Andrew R. Zinn, MD, PhD
McDermott Center for Human Growth and Development
University of Texas Southwestern Medical School
Dallas
Carolyn A. Bondy, MD
bondyc@mail.nih.gov
National Institute of Child Health and Human Development
National Institutes of Health
Bethesda
Author Contributions: Dr Bondy had full access to all of the data in the study and
takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Zinn, Bondy.
Acquisition of data: Van, Bakalov, Zinn, Bondy.
Analysis and interpretation of data: Van, Bakalov, Zinn, Bondy.
Drafting of the manuscript: Van, Zinn, Bondy.
Critical revision of the manuscript for important intellectual content:Van, Bakalov,
Zinn, Bondy.
Statistical analysis: Van, Bakalov, Bondy.
Obtained funding: Bondy.
Administrative, technical, or material support: Bondy.
Study supervision: Bondy.
Financial Disclosures: None reported.
Funding/Support: This research was supported by the Intramural Research Pro-
grams of the National Institute of Child Health and Human Development.
Role of the Sponsor: The sponsor had no role in the design and conduct of the
study; collection, management, analysis, and interpretation of the data; or prepa-
ration, review, and approval of the manuscript.
Acknowledgment: We thank the study participants; Eileen Lange, RN, and the staff
of the NIH clinical research center for their care of our patients; and Purita Ramos,
BS, for assistance with X chromosome genotyping. Ms Ramos is supported by NIH
grant NS35554.
1. Carr MC, Hokanson JE, Zambon A, et al. The contribution of intra-abdominal
fat to gender differences in hepatic lipase activity and low/high density lipopro-
tein heterogeneity. J Clin Endocrinol Metab. 2001;86:2831-2837.
2. Cooley M, Bakalov V, Bondy CA. Lipid profiles in women with 45,X vs 46,XX
primary ovarian failure. JAMA. 2003;290:2127-2128.
3. Wilkins JF. Genomic imprinting and methylation: epigenetic canalization and
conflict. Trends Genet. 2005;21:356-365.
4. Skuse DH, James RS, Bishop DV, et al. Evidence from Turner’s syndrome of an
imprinted X-linked locus affecting cognitive function. Nature. 1997;387:705-708.
5. James RS, Coppin B, Dalton P, et al. A study of females with deletions of the
short arm of the X chromosome. Hum Genet. 1998;102:507-516.
6. NIH Clinical Center Test Guide. Available at: http://cclnprod.cc.nih.gov/dlm
/testguide.nsf. Accessed February 11, 2006.
7. Wu FCW, von Eckardstein A. Androgens and coronary artery disease. Endocr
Rev. 2003;24:183-217.
Shyness, Social Anxiety, and Impaired
Self-esteem in Turner Syndrome
and Premature Ovarian Failure
To the Editor: Shyness and social anxiety are reported in
women with Turner syndrome (TS).
1
Possible contribu-
tors include physical stigmata, such as short stature and neck-
webbing, chromosomally-based deficits in social cogni-
tion, and premature ovarian failure with infertility. To
investigate the potential role of premature ovarian failure
and infertility, we compared measures of psychosocial dis-
tress in women with TS, women with spontaneous karyo-
typically normal premature ovarian failure (POF), and
healthy controls.
Methods. Participants in this institutional review board–
approved study were recruited through National Institutes
of Health (NIH) Web sites and newspapers and provided writ-
ten informed consent. Inclusion criteria for patients with
TS and POF are described elsewhere.
2
Daily hormone therapy
Table. X Chromosome Parental Origin and Metabolic Profile
Mean (SD)
P
Value*X
M
X
P
All patients, No. 62 27
Age, y 30.7 (10.9) 26.7 (11.6) .11
BMI 27.6 (6.3) 25.2 (6.3) .15
Fasting glucose, mg/dL 83 (10) 82 (7) .68
Fasting insulin, µU/mL 8.2 (7.0) 8.1 (4.6) .95
Triglycerides, mg/dL 131 (62) 100 (50) .01
Total cholesterol, mg/dL 208 (40) 189 (43) .02
LDL-C, mg/dL 137 (41) 113 (44) .004
HDL-C, mg/dL 58 (13) 61 (17) .17
Patients aged ⱖ18 y, No. 40 16
Age, y 34.1 (9.3) 32.2 (10.1) .51
BMI 28.6 (7.8) 27.4 (7.1) .59
Total body fat by DXA, % 37.1 (7.6) 36.3 (8.1) .27
Total abdominal fat, mL 78.3 (49.0) 57.7 (36.0) .005
Visceral abdominal fat, mL 24.8 (19.4) 13.9 (8.0) ⬍.001
Abbreviations: BMI, body mass index, calculated as weight in kilograms divided by the
square of height in meters; DXA, dual-energy x-ray absorptiometry; HDL-C, high-
density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; X
M
, mater-
nally inherited X chromosome; X
P
, paternally inherited X chromosome.
SI conversions: To convert glucose to mmol/L, multiply by 0.0555; to convert triglycer-
ides to mmol/L, multiply by 0.0113; to convert total cholesterol, HDL-C, and LDL-C
to mmol/L, multiply by 0.0259.
*Group means were compared by 1-way analysis of variance/analysis of covariance fol-
lowed by Fisher protected least-significant-difference tests. Age and BMI were used
as covariates in comparing metabolic and adiposity measures. Two-sided P values
were calculated for age, BMI, fasting glucose, and fasting insulin; all other P values
are 1-sided.
LETTERS
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was taken by 99% of the women with TS and 90% with POF
but was discontinued 2 weeks before evaluation.
Control participants were recruited from the local com-
munity and were paid a small stipend. They were required
to have regular menstrual cycles, take no medications, and
have no current or past medical or psychiatric conditions.
Control participants were interviewed during the follicular
phase of their menstrual cycle.
Testing was performed in the NIH Clinical Research Cen-
ter between January 2001 and January 2004. Participants
completed 4 rating scales previously validated in commu-
nity populations: the shyness scale,
3,4
social anxiety scale,
5
Rosenberg’s self-esteem scale,
6
and the Center for Epide-
miologic Studies–Depression Scale.
7
From an initial sample
of 103 women with TS, 100 fully completed all the sur-
veys; and from an initial sample of 128 women with POF,
100 completed all surveys. Age and marital status did not
differ significantly between participants and nonparticipants.
Group means were compared using analysis of variance with
age and body mass index (calculated as weight in kilograms
divided by the square of height in meters) as covariates. Mul-
tiple linear regr ession was used to examine the effects of age,
years of education, years of hormone therapy (as a measure
of duration of ovarian failure), and marital status on scores.
For comparisons of rating scale scores between women with
TS and those with POF, sample sizes of 96 to 104 women per
group provided 90% power to detect a differ ence of 10% or
greater on any of the rating scales with ␣ =.05. Analyses ex-
cluding women with TS younger than 18 years showed simi-
lar results and are not reported. All analyses were performed
using Stat View 5.0.1 (SAS Institute Inc, Cary, NC).
Results. There were group differences in the percentage
of participants taking thyroid or antidepressant medica-
tion (T
ABLE 1). However, all women were euthyroid, and
these medications were continued during the study. More
women with POF were married, likely reflecting their ini-
tial presentation of infertility.
Turner syndrome and POF groups scored significantly
higher on the shyness scale, social anxiety scale, and the Cen-
ter for Epidemiologic Studies–Depression Scale, and lower
on the self-esteem scale compared with controls (T
ABLE 2).
However, there were no significant differences between the
TS and the POF groups for the scores on any of these scales.
Age, years of education, years of hormone therapy, and mari-
tal status did not contribute to score variations in TS or POF.
Comment. In this study population, 2 dissimilar groups
of women who had experienced premature ovarian failure
had similar psychosocial profiles, with increased shyness,
social anxiety, and depression, and decreased self-esteem com-
pared with women with healthy ovarian function. These re-
sults are not likely to be due to ovarian hormone defi-
ciency because the majority of women in both groups were
taking hormone therapy. Short-term cessation of hormone
therapy should not result in changes in these scales that mea-
sure chronic social distress. Although our results do not pro-
Table 1. Characteristics of Women With Turner Syndrome,
Karyotypically Normal Premature Ovarian Failure, and Healthy
Controls
Turner
Syndrome
(n = 100)
Premature
Ovarian Failure
(n = 100)
Healthy
Controls
(n = 35)
Age, mean (SD) [range], y 34.7 (11.6)
[16-61]
30.9 (5.7)
[19-42]
35.8 (9.6)
[19-50]
Ethnicity, No. (%)*
White 91 (91) 85 (85) 23 (66)
Black 1 (1) 8 (8) 9 (26)
Asian 3 (3) 3 (3) 2 (6)
Hispanic 5 (5) 4 (4) 1 (2)
BMI, mean (SD) 27.6 (6.5) 23.6 (4.4) 23.2 (4.0)
Height, mean (SD), cm 146.2 (10.0) 165.0 (7.5) 160.8 (6.2)
Hormone therapy duration,
mean (SD), y
14.6 (10.7) 4.9 (4.4) NA
Taking thyroid medication, No. (%)† 33 (33) 7 (7) 0
Taking antidepressant medication,
No. (%)†
14 (14) 13 (13) 0
Education, mean (SD), y 16.3 (2.1) 17.0 (2.8) 17.0 (2.6)
Currently married, No. (%) 31 (31) 85 (85) 15 (43)
Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by the square
of height in meters); NA, not applicable.
*Race/ethnicity based on patient self-identification using National Institutes of Health cat-
egories.
†All women were euthyroid. Antidepressant and thyroid hormone medications were con-
tinued during this study.
Table 2. Results of Psychological Tests
Mean Score (95% CI)
P Value*
TS POF Healthy Controls
TS vs
Healthy Controls
POF vs
Healthy Controls TS vs POF
Shyness scale† 34.4 (32.3-36.6) 31.9 (29.3-33.3) 23.8 (20.8-26.8) ⬍.001 ⬍.001 .11
Social anxiety scale‡ 23.0 (20.3-25.8) 21.9 (18.8-23.7) 10.8 (8.7-13.5) ⬍.001 ⬍.001 .58
Rosenberg’s self-esteem scale§ 31.6 (30.5-32.6) 32.5 (31.7-33.7) 36.4 (35.0-37.6) ⬍.001 ⬍.001 .20
Center for Epidemiologic
Studies–Depression Scale 㛳
10.1 (8.6-11.9) 11.9 (9.7-13.9) 3.3 (1.8-4.3) ⬍.001 ⬍.001 .13
Abbreviations: CI, confidence interval; POF, premature ovarian failure; TS, Turner syndrome.
*Comparison of group means by analysis of variance with age and body mass index as covariates.
†Scale ranges from 14 to 70, with scores of higher than 35 indicative of clinically significant shyness.
3,4
‡Scale ranges from 0 to 80, with higher scores indicating more severe social anxiety.
5
§Scale ranges from 10 to 40, with higher scores indicating greater self-esteem.
6
㛳Scale ranges from 0 to 60, with scores of 16 or higher consistent with major depression.
LETTERS
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vide an explanation for this symptom profile, uncontrolled
studies
8
suggest infertility as a factor.
Study limitations include the use of self-selected groups
that were primarily white, relatively well-educated, and took
the initiative to participate in NIH protocols; as such, they
may not be representative of other women with premature
ovarian failure. Control participants were screened for the
absence of psychiatric illness so their rating scale scores could
have been biased toward less distress than those from a gen-
eral population. As a cross-sectional study, conclusions about
causality cannot be made and, as an observational study, as-
sociations could be due to unmeasured confounding. To con-
firm these findings, it is important to study other groups,
such as young women with ovarian failure secondary to can-
cer or cancer therapy. Nevertheless, these results suggest that
clinicians should consider these psychosocial issues in ad-
dition to the medical consequences for patients with pre-
mature ovarian failure.
Peter J. Schmidt, MD
peterschmidt@mail.nih.gov
Graca M. P. Cardoso, MD
Behavioral Endocrinology Branch
National Institute of Mental Health
National Institutes of Health
Bethesda, Md
Judith L. Ross, MD
Department of Pediatrics
Thomas Jefferson University
Philadelphia, Pa
Nazli Haq, MA
David R. Rubinow, MD
Behavioral Endocrinology Branch
National Institute of Mental Health
Carolyn A. Bondy, MD
Developmental Endocrinology Branch
National Institute of Child Health and Human Development
National Institutes of Health
Bethesda, Md
Author Contributions: Dr Schmidt had full access to all the data in the study and takes
responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Schmidt, Ross, Rubinow, Bondy.
Acquisition of data: Schmidt, Cardoso, Ross, Haq, Bondy.
Analysis and interpretation of data: Schmidt, Cardoso, Ross, Rubinow, Bondy.
Drafting of the manuscript: Schmidt, Cardoso, Bondy.
Critical revision of the manuscript for important intellectual content: Schmidt,
Haq, Rubinow.
Statistical analysis: Schmidt, Cardoso, Ross, Haq, Rubinow, Bondy.
Obtained funding: Schmidt.
Administrative, technical, or material support: Schmidt.
Study supervision: Schmidt.
Financial Disclosures: None reported.
Funding/Support: This work was supported by the Intramural Research Programs
of the National Institute of Mental Health and National Institute of Child Health
and Human Development and supported in part by grant NS42777 from the Na-
tional Institutes of Health (Dr Ross).
Role of the Sponsors: The sponsors had no role in the design and conduct of the
study; collection, management, analysis, and interpretation of the data; and the
preparation, review, or approval of the manuscript.
Acknowledgment: We thank the study participants and are grateful to Eileen Lange,
RN, CCRP, and Vien Vanderhoof, LNP, for recruiting and caring for our patients.
We also thank Lawrence Nelson, MD, for pioneering research on premature ovar-
ian failure and Vladimir K. Bakalov, MD, for informal uncompensated statistical
consultation.
1. McCauley E, Sybert VP, Ehrhardt AA. Psychosocial adjustment of adult women
with Turner syndrome. Clin Genet. 1986;29:284-290.
2. Bakalov VK, Axelrod L, Baron J, et al. Selective reduction in cortical bone min-
eral density in Turner syndrome independent of ovarian hormone deficiency. J Clin
Endocrinol Metab. 2003;88:5717-5722.
3. Watson AK, Cheek JM. Shyness situations: perspectives of a diverse sample of
shy females. Psychol Rep. 1986;59:1040-1042.
4. Heiser NA, Turner SM, Beidel DC. Shyness: relationship to social phobia and
other psychiatric disorders. Behav Res Ther. 2003;41:209-221.
5. Mattick RP, Clarke JC. Development and validation of measures of social pho-
bia scrutiny fear and social interaction anxiety. Behav Res Ther. 1998;36:455-470.
6. Hensley WE, Roberts MK. Dimensions of Rosenburg’s self-esteem scale. Psy-
chol Rep. 1976;38:583-584.
7. Radloff L. The CES-D Scale: a self-report depression scale for research in the
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8. Greil AL. Infertility and psychological distress: a critical review of the literature.
Soc Sci Med. 1997;45:1679-1704.
Depression Among Pregnant Rural South African
Women Undergoing HIV Testing
To the Editor: Rates of human immunodeficiency virus (HIV)
infection in southern Africa are high, with up to 45% of preg-
nant women being HIV-positive.
1
Depression is associated
with lowered adherence to antiretroviral medication
2
and
poor use of antenatal care.
3
It frequently persists into the
postnatal period, raising the risk of adverse child out-
comes.
3
Because little is known about the rates of depres-
sion among women undergoing HIV testing in prevention
of mother-to-child transmission programs (PMTCT), we un-
dertook this prevalence study. A secondary aim was assess-
ment of perceptions among these women about adverse con-
sequences of an HIV diagnosis, and whether these perceptions
were related to depression status.
Methods. This study was conducted in rural northern Kwa-
Zulu-Natal, South Africa, a region with a very high HIV preva-
lence.
1
A consecutive sample of women offered PMTCT dur-
ing routine antenatal care at 3 representative clinics
4
was
invited to participate. Women were eligible if this was their
first HIV test in the current pregnancy and they had not pre-
viously tested HIV-positive. Written informed consent was
obtained and approval was granted by the Ethics Review
Board of the University of KwaZulu-Natal and the Oxford
Tropical Research Ethics Committee. Enrollment was ob-
tained from 242 (82%) of the eligible women. Reasons for
nonparticipation included insufficient time, nonreturn af-
ter requesting opportunity to discuss with family, and un-
willingness to participate in research. Ethics boards did not
permit collection of any other comparison data from
nonparticipants.
Depressive symptoms wer e assessed with the Edinburgh
Postnatal Depression Scale (EPDS). It has specificity and
sensitivity greater than 76%,
5
has been validated antena-
tally and postnatally,
6
and has been validated in a black
South African population.
7
Depression was defined by a
score of 13 or above.
6
Any patient reporting recent
thoughts of self-harm was referred for intervention. A
9-item questionnaire scored in 3 domains (health care
access, financial resources, and social support) was used to
elicit women’s perceptions of the consequences of an HIV
LETTERS
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