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Featured researches published by David A. Klein.


American Family Physician | 2015

Provision of Contraception: Key Recommendations from the CDC.

David A. Klein; James J. Arnold; Erika S. Reese

The Centers for Disease Control and Prevention has released comprehensive recommendations for provision of family planning services. Contraceptive services may be addressed in five steps, and counseling may be provided in a tiered approach, whereby the most effective options are presented before less effective options. Clinicians should discuss all contraceptive methods that can be used safely by the patient, regardless of whether a method is available on site and even if the patient is an adolescent or a nulliparous woman. Physical assessment is usually limited to blood pressure evaluation before starting hormonal contraceptives or pelvic examination before placing an intrauterine device. Monitoring the patients weight also may be helpful. If it is reasonably certain that the patient is not pregnant, any contraceptive may be started immediately. When hormonal contraceptives are selected, one years supply should be prescribed to reduce barriers to use. Condoms should be made readily available. Documentation of visits for contraception should include patient understanding of use, benefits, and risks, plus an individualized follow-up plan. Bleeding irregularities generally are not harmful and may resolve with continued use of the contraceptive method. All patients-including adolescents; those who identify as lesbian, gay, bisexual, or transgender; and patients with disabilities or limited English proficiency-should receive high-quality care in an accommodating, nonjudgmental environment. The Centers for Disease Control and Prevention supports advance provision of emergency contraceptives. Because no test reliably verifies cessation of fertility, it is prudent to consider contraceptive use until menopause, or at least until 50 to 55 years of age.Abstract Objective. The objective of this study was to evaluate the effect of an intervention with advance provision of emergency contraceptive pills (ECP), condoms, and extended information to a targeted group of teenage girls, compared with a control group, 12 months after intervention. Material and methods. A randomized controlled trial among 420 girls, 15–19 years old, requesting emergency contraception at a youth clinic in Sweden was carried out. Data were collected by a questionnaire at the initial visit and structured telephone interviews 12 months after enrolment. Differences between the intervention group and the control group regarding ECP use, time interval from unprotected intercourse to ECP intake, contraceptive use, and sexual risk-taking were analysed. Results. One year after the intervention 62% of the girls could be reached for follow-up. The girls in the intervention group reported a shorter time interval (mean 15.3 hours) from unprotected intercourse to ECP intake compared to the control group (mean 25.8 hours) (p = 0.019), without any evidence of decreased use of contraceptives or increased sexual risk-taking. Conclusion. Even up to 12 months following the intervention, advance provision of ECP at one single occasion, to a specific target group of adolescent girls, shortens the time interval from unprotected intercourse to pill intake, without jeopardizing contraceptive use or increasing sexual risk-taking. Considering the clinical relevance of these results, we suggest that advance provision of ECP could be implemented as a routine preventive measure for this target group.


American Journal of Obstetrics and Gynecology | 2017

Long-acting reversible contraception in adolescents: a systematic review and meta-analysis

Justin T. Diedrich; David A. Klein; J. Peipert

BACKGROUND: Among adolescent pregnancies, 75% are unintended. Greater use of highly‐effective contraception can reduce unintended pregnancy. Although multiple studies discuss adolescent contraceptive use, there is no consensus regarding the use of long‐acting reversible contraception as a first‐line contraception option. OBJECTIVE: We performed a systematic review of the medical literature to assess the continuation of long‐acting reversible contraceptives among adolescents. STUDY DESIGN: Ovid‐MEDLINE, Cochrane databases, and Embase databases were searched using key words relevant to the provision of long‐acting contraception to adolescents. Articles published from January 2002 through August 2016 were selected for inclusion based on specific key word searches and detailed review of bibliographies. For inclusion, articles must have provided data on method continuation, effectiveness, or satisfaction of at least 1 long‐acting reversible contraceptive method in participants <25 years of age. Duration of follow‐up had to be ≥6 months. Long‐acting reversible contraceptive methods included intrauterine devices and the etonogestrel implant. Only studies in the English language were included. Guidelines, systematic reviews, and clinical reviews were examined for additional citations and relevant points for discussion. Of 1677 articles initially identified, 90 were selected for full review. Of these, 12 articles met criteria for inclusion. All studies selected for full review were extracted by multiple reviewers; inclusion was determined by consensus among authors. For studies with similar outcomes, forest plots of combined effect estimates were created using the random effects model. The meta‐analysis of observational studies in epidemiology guidelines were followed. Primary outcomes measured were continuation of method at 12 months, and expulsion rates for intrauterine devices. RESULTS: This review included 12 studies, including 6 retrospective cohort studies, 5 prospective observational studies, and 1 randomized controlled trial. The 12 studies included 4886 women age <25 years: 4131 intrauterine device users and 755 implant users. The 12‐month continuation of any long‐acting reversible contraceptive device was 84.0% (95% confidence interval, 79.0–89.0%). Intrauterine device continuation was 74.0% (95% confidence interval, 61.0–87.0%) and implant continuation was 84% (95% confidence interval, 77.0–91.0%). Among postpartum adolescents, the 12‐month long‐acting reversible contraceptive continuation rate was 84.0% (95% confidence interval, 71.0–97.0%). The pooled intrauterine device expulsion rate was 8.0% (95% confidence interval, 4.0–11.0%). CONCLUSION: Adolescents and young women have high 12‐month continuation of long‐acting reversible contraceptive methods. Intrauterine devices and implants should be offered to all adolescents as first‐line contraceptive options.


American Journal of Obstetrics and Gynecology | 2017

Postpartum contraception: initiation and effectiveness in a large universal healthcare system

Michael R. Brunson; David A. Klein; Cara H. Olsen; Larissa F. Weir; Timothy A. Roberts

BACKGROUND: Repeat pregnancies after a short interpregnancy interval are common and are associated with negative maternal and infant health outcomes. Few studies have examined the relative effectiveness of postpartum contraceptive choices. OBJECTIVE: We aimed to determine the initiation trends and relative effectiveness of postpartum contraceptive methods, with typical use, on prevention of short delivery intervals (≤27 months) among women with access to universal healthcare, including coverage that entails no co‐payments and allows unlimited contraceptive method switching. STUDY DESIGN: This retrospective cohort study included women who were enrolled in the United States military healthcare system who were admitted for childbirth between October 2010 and March 2015, with ≥6 months postpartum enrollment. With the use of insurance records, we determined the most effective contraceptive method initiated during the first 6 months after delivery, even if subsequently discontinued. Rates of interdelivery intervals of ≤27 months, as proxies for interpregnancy intervals ≤18 months, were determined with the use of the Kaplan‐Meier estimator. Women who were disenrolled, who reached 27 months after delivery without another delivery, or who reached the end of the study period were censored. The influence of sociodemographic variables and contraceptive choices on time to subsequent delivery was evaluated by Cox regression analysis, which accounted for a possible correlation among multiple deliveries by an individual woman. RESULTS: During the study timeframe, 373,840 women experienced a total of 450,875 postpartum intervals. Women averaged 27 (standard deviation, 5.3) years of age at the time of delivery; 33.9% of them were <25 years old; 15.5% of them were active duty service members, and 31.6% of them had insurance sponsors of junior enlisted rank (which suggests lower income). Postpartum contraceptive methods that were initiated included self or partner sterilization (7%), intrauterine device (13.5%), etonogestrel implant (3.4%), depot medroxyprogesterone acetate (2.5%), and pill, patch, or ring (36.8%). Furthermore, 36.7% of them did not initiate a prescription method. Etonogestrel implant initiation increased from 1.7% of postpartum women in the first year of our study to 5.3% in the final year. The estimated short interdelivery interval rate was 17.4%, but rates varied with contraceptive method: 1% with sterilization, 6% with long‐acting reversible contraception, 12% with depot medroxyprogesterone, 21% with pill, patch, or ring, and 23% with no prescription method. In a multivariable analysis, the adjusted hazard of a short interdelivery interval was highest among women who were younger, on active duty, or with officer insurance sponsors. Compared with nonuse of any prescription contraceptive, the use of an intrauterine device reduced the hazard of a subsequent delivery (adjusted hazard ratio, 0.19; 95% confidence interval, 0.18–0.20), as did etonogestrel implant (adjusted hazard ratio, 0.21; 95% confidence interval, 0.19–0.23); the pill, patch, or ring had less effect (adjusted hazard ratio, 0.80; 95% confidence interval, 0.78–0.81). CONCLUSION: Postpartum initiation of long‐acting reversible contraception is highly effective at the prevention of short interdelivery intervals, whereas pill, patch, or ring methods are associated with rates of short interdelivery intervals similar to users of no prescription contraception. This study supports long‐acting reversible contraception as first‐line recommendations for postpartum women who wish to retain fertility but avoid early repeat pregnancy.


Contraception | 2018

Providing quality family planning services to LGBTQIA individuals: a systematic review

David A. Klein; Erin Berry-Bibee; Kristin Keglovitz Baker; Nikita M. Malcolm; Julia M. Rollison; Brittni N. Frederiksen

OBJECTIVE Lesbian, gay, bisexual, transgender, queer/questioning, intersex and asexual (LGBTQIA) individuals have unique sexual and reproductive health needs; however, facilitators and barriers to optimal care are largely understudied. The objective of this study was to synthesize findings from a systematic review of the literature regarding the provision of quality family planning services to LGBTQIA clients to inform clinical and research strategies. STUDY DESIGN Sixteen electronic bibliographic databases (e.g., PubMed, PSYCinfo) were searched to identify articles published from January 1985 to April 2016 relevant to the analytic framework. RESULTS The search parameters identified 7193 abstracts; 19 descriptive studies met inclusion criteria. No studies assessed the impact of an intervention serving LGBTQIA clients on client experience, behavior or health outcomes. Two included studies focused on the perspectives of health care providers towards LGBTQIA clients. Of the 17 studies that documented client perspectives, 12 elucidated factors facilitating a clients ability to enter into care, and 13 examined client experience during care. Facilitators to care included access to a welcoming environment, clinicians knowledgeable about LGBTQIA needs and medical confidentiality. CONCLUSIONS This systematic review found a paucity of evidence on provision of quality family planning services to LGBTQIA clients. However, multiple contextual facilitators and barriers to family planning service provision were identified. Further research is needed to assess interventions designed to assist LGBTQIA clients in clinical settings, and to gain a better understanding of effective education for providers, needs of specific subgroups (e.g., asexual individuals) and the role of the clients partner during receipt of care.


Journal of Vaccines and Vaccination | 2014

Recall of Human Papillomavirus (HPV) Vaccination History among Adolescents

David A. Klein; Amy M. Thompson; Barbara L. Bowsher; Anneke C. Bush; Jane Shen-Gunther

Objective: Data examining the accuracy of patients’ ability to recall their HPV vaccination history are sparse and conflicting, and generally suggest that adolescents often report this information inaccurately. This study aims to elucidate accuracy of HPV vaccination recall among a diverse sample of female and male adolescents. Methods: Adolescents (N=224, ages 12-23) recruited from a large military primary care clinic completed a questionnaire regarding sociodemographics, clinical variables, and HPV vaccination history. Electronic databases were searched to determine each participant’s recorded vaccination history. Accuracy of recall was calculated for initiation and completion of the series; and age- and gender-based comparisons were conducted. Results: 224 adolescents aged 12-23 enrolled in the study; 217 provided complete data. Electronic records showed that 59.5% of the adolescents initiated, whereas 40.1% completed the 3-shot series. Of the 217 participants, 65.9% correctly recalled initiation (or lack of initiation) and 56.2% correctly recalled completion (or lack of completion). In bivariate analysis, older adolescents had more accurate recall of initiation compared to younger adolescents (p<0.002); however, there was no difference between gender (P<0.195), race (P<0.104), or sexual debut (P<0.196). Furthermore, 40.5% of adolescents who have had vaginal, oral, or anal intercourse completed the series. Conclusion: Among adolescents in a diverse, vaccination-centric clinical setting, recall of HPV-related vaccination status is often inaccurate, and should be interpreted with caution. The level of inaccuracy found in this study, which is consistent with prior studies, has important implications for clinicians and researchers who depend on self-reporting of vaccination status for vaccine-related efforts.


Military Medicine | 2018

Transgender Dependent Adolescents in the U.S. Military Health Care System: Demographics, Treatments Sought, and Health Care Service Utilization

Nela Van Donge; Natasha A. Schvey; Timothy A Roberts; David A. Klein

INTRODUCTION Transgender and gender-diverse (TGD) youth are at greater risk for mental health and medical conditions than their cisgender peers; however, poor health outcomes and identity-based discrimination can be minimized in the context of optimal support. Approximately 1.7 million youth may be eligible for care covered by the Military Health System, which includes mental health and gender-affirming medications. The purpose of the current study is to identify sociodemographic characteristics, the psychosocial and behavioral risk profile, and health care utilization patterns of TGD dependent youth cared for in the U.S. military system to inform provider training and resource allocation. MATERIALS AND METHODS We performed a retrospective chart review by searching all medical records between July 1, 2014 and July 1, 2017 for diagnoses suggesting visits for TGD-services at a regional referral-based adolescent medicine clinic which cares for dependent children of active duty, activated selected reserve, and retired military service members between the ages of 9 and 24 years for a wide range of health care needs. RESULTS Fifty-three participants were included in this study. Sixty-four percent reported a transmasculine identity, 21% a transfeminine identity, and 15% a non-binary or undecided identity. The mean age at first gender-related visit was 14.5 years (SD 3.2). The mean number of primary care physicians and specialists seen by a given individual in a military treatment facility for any visit type since the implementation of the medical record system in 2005 was 12 (SD 6.8) and 10.2 (SD 7.8), respectively. Thirty-three percent of all patients assigned as female at birth were on testosterone therapy and 23% of all patients assigned as male at birth were on estrogen therapy at their most recent clinic visit. Twelve patients were undergoing pubertal suppression with an injectable or implantable gonadotropin-releasing hormone agonist. Seventy percent reported a history of suicidal ideation, 42% self-harm, 21% at least one suicide attempt, and 33% psychiatric hospitalization. Having strongly supportive parents was significantly associated with recognizing, disclosing and seeking treatment for gender nonconformity at an earlier age (ps ≤ 0.03) and marginally associated with less likelihood of current suicidal ideation (p = 0.06) compared to those with less supportive parents. CONCLUSIONS This study elucidated the sociodemographic and behavioral risk profile of a sample of TGD youth in the MHS. Military and non-military health care providers across a broad spectrum of specialties should be knowledgeable about the unique psychosocial and medical needs, requisite sensitivity, and available referral options in the care of TGD youth. Assumptions about ones gender identity, sexual orientation, gender expression, or behaviors cannot be made based on birth-assigned sex. Further research is needed to investigate the health and wellbeing of TGD military-affiliated youth over time and to determine quality transgender-related services in support of this vulnerable and underserved population.


Military Medicine | 2018

Military Family Physicians’ Practices and Perceptions About Reproductive Health Services for Deploying Women

Caitlyn B de Kanter; Timothy A Roberts; Sorana Raiciulescu; Syed M Ali; James J. Arnold; Catherine T. Witkop; David A. Klein

INTRODUCTION Incomplete or inadequate provision of contraceptive services to servicewomen can have a profound impact on military health, readiness, and financial outcomes. This study examined the reproductive health practices and perceptions among family medicine physicians caring for servicewomen. MATERIALS AND METHODS We conducted an anonymous survey of 568 registered attendees at the March, 2018 Uniformed Services Academy of Family Physicians annual meeting. The response rate was 52.8% and 69% of responders met inclusion criteria. RESULTS Our sample of family medicine physicians was 58.3% male and 85.3% Caucasian. In all, 18.3% were current residents, 42.9% graduated between 2008 and 2017, and 38.7% graduated before 2008. A previous deployment was reported by 55.1%.Among physicians with a deployment history, 20.8% reported difficulty prescribing contraception during deployment because they were unable to obtain a patients desired method, 2.6% reported servicewomen not accessing contraception because of fear and stigma associated with sexual activity in the deployed setting, and 22.1% reported problems with both factors.Among physicians performing pre-deployment and other readiness visits for active duty servicewomen, 17.4% reported not discussing contraception at these encounters because of competing priorities and 1.5% because of ethical/religious concerns. Physicians who could offer more rapid access to subdermal implants (within 2 weeks) were more likely to discuss contraception (87.0% versus 64.7%, p = 0.005).When discussing the use of contraception in the deployed environment, 15.8% of physicians would not prescribe oral contraceptives, 12.3% would not prescribe intrauterine methods, and 14.3% would not prescribe subdermal implants. Physicians who previously deployed were more likely to report they would offer oral contraceptives (91% versus 75.0%, OR 3.4 [95% CI 1.44-8.48], p = 0.002) for women in the deployed setting compared to those who have not deployed. More timely (<2 weeks) access to subdermal implant insertion was associated with a greater rate of offering subdermal implants (91.9% versus 79.6%, p = 0.02).When discussing contraceptive options with all women, 27.3% of physicians do not prescribe emergency contraception because of training, ethical, and/or religious reasons. Some reported they would neither prescribe nor refer women for the following methods: emergency contraception (4.5%), intrauterine contraception (9.3%), and subdermal implants (7.3%). CONCLUSIONS The results of this study support the need to develop a consistent, standardized, and evidence-based pre-deployment process and expanded resources in deployed environments for services related to the provision of reproductive health. Optimal strategies may aim to reduce barriers to care and enable the highest quality of health care through provider education, resource allocation, revised appointment times and content, and diversity among provider experience. Further research is needed to determine the influence of physician practice patterns on patient reproductive health outcomes and interventions to modify these practices to improve patient outcomes and military readiness.


PLOS ONE | 2015

All Military Adolescents Are Not the Same: Sexuality and Substance Use among Adolescents in the U.S. Military Healthcare System

David A. Klein; William P. Adelman; Amy M. Thompson; Richard G. Shoemaker; Jane Shen-Gunther

Data examining sexuality and substance use among active duty and military-dependent youth is limited; however, these psychosocial factors have military implications. Adolescents and young adults aged 12–23 were recruited from an active-duty trainee clinic (n = 225) and a military pediatric clinic (n = 223). Active duty participants were more likely to be older, male, White, previous tobacco users, and report a history of sexual activity and less contraception use at their most recent intercourse, compared to the dependent group. Over 10% of all participants indicated attraction to members of the same gender or both genders. In logistic regression analysis, non-White participants were less likely to use contraception compared to White participants. Adolescents and young adults seen in military clinics frequently engage in high-risk behavior. Clinicians who care for military youth should assess their patient’s psychosocial history. Further study of this population is warranted to identify factors that may influence risk and resilience.


American Journal of Obstetrics and Gynecology | 2016

Initiation and continuation of long-acting reversible contraception in the United States military healthcare system

Daniel P. Chiles; Timothy A. Roberts; David A. Klein


American Family Physician | 2016

Common Questions About Recurrent Urinary Tract Infections in Women.

James J. Arnold; Laura E. Hehn; David A. Klein

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James J. Arnold

Uniformed Services University of the Health Sciences

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Amy M. Thompson

San Antonio Military Medical Center

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Jane Shen-Gunther

San Antonio Military Medical Center

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Justin T. Diedrich

Washington University in St. Louis

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Natasha A. Schvey

Uniformed Services University of the Health Sciences

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Timothy A. Roberts

Uniformed Services University of the Health Sciences

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Alexandria Morettini

Uniformed Services University of the Health Sciences

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Brittni N. Frederiksen

United States Department of Health and Human Services

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