Victoria Jennings

ORCID: 0000-0003-4963-1930
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About
Contact & Profiles
Research Areas
  • Global Maternal and Child Health
  • Reproductive Health and Contraception
  • Reproductive Health and Technologies
  • Adolescent Sexual and Reproductive Health
  • Assisted Reproductive Technology and Twin Pregnancy
  • Maternal and Perinatal Health Interventions
  • Mobile Health and mHealth Applications
  • Demographic Trends and Gender Preferences
  • Primary Care and Health Outcomes
  • Ovarian function and disorders
  • Healthcare Policy and Management
  • Menstrual Health and Disorders
  • Ectopic Pregnancy Diagnosis and Management
  • Liver Diseases and Immunity
  • Breastfeeding Practices and Influences
  • Gallbladder and Bile Duct Disorders
  • Health and Lifestyle Studies
  • Poverty, Education, and Child Welfare
  • Maternal and fetal healthcare
  • Intraperitoneal and Appendiceal Malignancies
  • Global Health and Surgery
  • Ethics in Clinical Research
  • LGBTQ Health, Identity, and Policy
  • Maternal and Neonatal Healthcare
  • Liver Disease Diagnosis and Treatment

Nottingham University Hospitals NHS Trust
2025

University Hospital of Wales
2020

University of Missouri–Kansas City
2020

Institute for Reproductive Health
2005-2019

Georgetown University
2007-2019

Georgetown University Medical Center
2019

University of Washington
2010

Instituto Nacional de Salud
2006-2007

University of Oxford
2007

Usha Martin (India)
2007

The choice of available contraceptive methods has increased in recent years; however, data on women’s awareness and reasons for their method choice, or changing methods, is limited. aim this study was to examine the use USA, UK, Germany, Italy Spain. Quantitative survey heterosexual women aged 25–44 years (n=2544), with no known infertility. Questions related knowledge sources advice. There generally good most forms contraception all five countries. Awareness current usage greatest pill...

10.1186/1742-4755-10-7 article EN cc-by Reproductive Health 2013-02-05

A significant number of women worldwide use periodic abstinence as their method family planning. Many them some type calendar-based approach to determine when they should abstain from unprotected intercourse avoid pregnancy; yet often lack correct knowledge during menstrual cycle are most likely become pregnant. simple natural planning (NFP) based on a fixed formula define the fertile window could be useful these women. This article reports results an analysis application window. large...

10.1016/s0010-7824(99)00106-7 article EN cc-by-nc-nd Contraception 1999-12-01

10.1016/j.fertnstert.2004.03.040 article EN publisher-specific-oa Fertility and Sterility 2004-10-01

Objective: Dynamic Optimal Timing (Dot) is a smartphone application (app) that estimates the menstrual cycle fertile window based on user's period start dates. Dot uses machine learning to adapt cycles over time and informs users of 'low' 'high' fertility days. We investigated Dot's effectiveness, calculating perfect- typical-use failure rates.Methods: This prospective, 13 observational study (ClinicalTrials.gov NCT02833922) followed 718 women who were using prevent pregnancy. Participants...

10.1080/13625187.2019.1581164 article EN cc-by-nc-nd The European Journal of Contraception & Reproductive Health Care 2019-03-04

Abstract Background Assessing small bowel (SB) Crohn’s Disease (CD) is challenging due to finite accuracy of Faecal Calprotectin and the invasive nature ileocolonoscopy. While SB motility a validated biomarker, its impact on clinical decision-making remains unstudied. This study aims evaluate influence GIQuant lesion-specific score assessments in real-world settings. Methods 10 practising NHS gastroenterologists 6 UK sites participated with each site identifying eligible CD patients. All...

10.1093/ecco-jcc/jjae190.0746 article EN Journal of Crohn s and Colitis 2025-01-01

This was a multicentred, prospective study of pregnancies among women using natural family planning. The maintained planning charts the conception cycle, recording acts intercourse and signs ovulation (cervical mucus changes, including peak day basal body temperature). Charts were used to assess most probable insemination relative length follicular phase cycle. sex ratio (males per 100 females) for 947 singleton births 101.5, not significantly different from expected value 105. did vary...

10.1093/humrep/13.5.1397 article EN Human Reproduction 1998-05-01

OBJECTIVES: The purpose of this study was to determine prospectively whether unplanned pregnancies are associated with adverse pregnancy outcomes among users natural family planning. METHODS: Women who became pregnant while using planning were identified in five centers worldwide: there 373 and 367 planned cohort. subjects followed up at 16 32 weeks' gestation after delivery. risks spontaneous abortion, low birth-weight, preterm birth estimated adjustment by logistic regression. RESULTS:...

10.2105/ajph.87.3.338 article EN American Journal of Public Health 1997-03-01

Background: Some 222 million women worldwide have unmet needs for contraception; they want to avoid pregnancy, but are not using a contraceptive method, primarily because of concerns about side effects associated with most available methods. Expanding options—particularly fertility awareness options that provide information which days during their menstrual cycles likely become pregnant if unprotected intercourse—has the potential reduce need. Making these methods through mobile phones can...

10.2196/resprot.6886 article EN cc-by JMIR Research Protocols 2017-01-18

Family planning is often regarded as the woman's responsibility, but there growing recognition of need to involve men in family programs. Since 2001, fertility-awareness-based Standard Days Method® (SDM) has been introduced more than 30 countries, providing a natural, effective birth control option. SDM requires cooperation male partner, and its introduction created an opportunity test innovative strategies engage couples planning. Such included couple counselling, outreach activities that...

10.12927/whp.2013.23097 article EN World health & population 2012-10-01

Favorable client perceptions of provider’s interpersonal behavior in contraceptive delivery, documented clinic exit questionnaires, appear to contradict results from qualitative evaluations and are attributed clients’ courtesy bias. In this study, trained simulated clients requested services Ministry Health providers three countries. Providers excelled courteousness/respect Peru Rwanda; India, were less courteous respectful when the chose pill. Privacy two-way communication prevalent all The...

10.1177/0193841x06289044 article EN Evaluation Review 2007-01-26

Virtually all the evidence on relationship between women's empowerment and use of contraception comes from cross-sectional studies that have emphasized macrosocial factors. This analysis tested whether literate illiterate women are empowered by an intervention designed to provide information addressing technical gender concerns expand contraceptive choice, evaluated effects decision-making power behavior. The data came a three-year quasi-experiment conducted in two comparable, yet not...

10.1186/1742-4755-11-74 article EN cc-by Reproductive Health 2014-10-21

There is no guarantee that a successful pilot program introducing reproductive health innovation can also be expanded successfully to the national or regional level, because scaling-up process complex and multilayered. This article describes how integrate Standard Days Method (SDM) of family planning into existing Ministry Health services was scaled up nationally in Rwanda. Much success scale-up effort due systematic use monitoring evaluation (M&E) data from several sources make...

10.9745/ghsp-d-13-00165 article EN cc-by Global Health Science and Practice 2014-05-01

Given the proportion of Kenyan women not using hormonal contraceptives, country appears to have a substantial need for modern, natural family planning option. The CycleBeads® mobile phone application (app), digital platform Standard Days Method® planning, could help address this issue.After CycleBeads app was promoted in Kenya May-June 2015, three-month pilot study conducted collect quantitative and qualitative data from 185 female users. Chi-square testing, binary logistic regression...

10.1363/43e4617 article FR International Perspectives on Sexual and Reproductive Health 2017-01-01

Objectives: We propose a new, personalised approach of estimating woman's most fertile days that only requires recording the first day menses and can use smartphone to convey this information user so she plan or prevent pregnancy.Methods: performed retrospective analysis two cohort studies (a North Carolina-based study Early Pregnancy Study [EPS]) prospective multicentre trial (World Health Organization [WHO] study). The Carolina consisted 68 sexually active women with either an intrauterine...

10.1080/13625187.2016.1196485 article EN The European Journal of Contraception & Reproductive Health Care 2016-06-14

To assess six-cycle perfect and typical use efficacy of Dynamic Optimal Timing (Dot), an algorithm-based fertility app that identifies the fertile window menstrual cycle using a woman's period start date provides guidance on when to avoid unprotected sex prevent pregnancy.We are conducting prospective study following cohort women Dot for up 13 cycles. Study enrollment data collection being conducted digitally within include daily coital diary, pregnancy intentions sociodemographic...

10.1016/j.contraception.2018.10.002 article EN cc-by-nc-nd Contraception 2018-10-11

Women were asked to report if they used another method, but not which method used, so we cannot distinguish between barrier use and withdrawal.

10.1363/3209406 article EN International Family Planning Perspectives 2006-06-01

Unintended pregnancies are accepted as associated with social, maternal and perinatal risks, but few data exist in South America. In a selected network of hospitals participating the ECLAMC (Spanish acronym for Latin American Collaborative Study Congenital Malformations), frequency unintended was 49.8% 5155 mothers normal liveborns, interviewed post-partum period (1992-1994). Compared intended pregnancy group, these were more frequently multiparous, conceived easily, had surprisingly higher...

10.1093/humrep/13.7.1991 article EN Human Reproduction 1998-07-01

OBJECTIVE: To determine what contribution the Standard Days Method® (SDM) makes to contraceptive mix offered by regular health services in areas of Peru where prevalence rates (CPR) are already high. METHODS: SDM was added family planning methods Ministry Health two provinces September 2002. Retrospective interviews were conducted March-June 2004 with 1 200 women who had chosen as their method and used it for 2-20 months. Data also obtained from databases participating services. The...

10.1590/s1020-49892010000800002 article EN Revista Panamericana de Salud Pública 2010-08-01
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