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Association between breastfeeding duration and educational attainment in rural Southwest Uganda: a population-based cohort study

Global Health Action
2024-12-31 | Journal article
DOI: 10.1080/16549716.2024.2338023
Contributors: Shamsudeen Mohammed; Clara Calvert; Joseph O Mugisha; Makanga Ronald; Gershim Asiki; Judith R Glynn; Laura L Oakley; Milly Marston
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Crossref

Estimation of cause-specific mortality in Rakai, Uganda, using verbal autopsy 1999-2019

Global Health Action
2024-12-31 | Journal article
DOI: 10.1080/16549716.2024.2338635
Contributors: Dorean Nabukalu; Júlia Almeida Calazans; Milly Marston; Clara Calvert; Hadijja Nakawooya; Brendah Nansereko; Robert Sekubugu; Gertrude Nakigozi; David Serwadda; Nelson Sewankambo et al.
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Crossref

A realist approach to implementation fidelity in a mixed-method evaluation of electronic decision support systems to improve the quality of antenatal care in Nepal

2024-05-09 | Preprint
DOI: 10.1101/2024.05.07.24306757
Contributors: Emma Radovich; Sulata Karki; Seema Das; Rajani Shakya; Ona L. McCarthy; Abha Shrestha; Clara Calvert; Oona M. R. Campbell; Loveday Penn-Kekana
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Crossref

Pregnancy‐related mortality up to 1 year postpartum in sub‐Saharan Africa: an analysis of verbal autopsy data from six countries

BJOG: An International Journal of Obstetrics & Gynaecology
2024-01 | Journal article
DOI: 10.1111/1471-0528.17606
Contributors: Ursula Gazeley; Georges Reniers; Julio E. Romero‐Prieto; Clara Calvert; Momodou Jasseh; Kobus Herbst; Sammy Khagayi; David Obor; Daniel Kwaro; Albert Dube et al.
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Crossref

Rates of sexual partner acquisition from nationally representative surveys: variation between countries and by age, sex, wealth, partner and HIV status

Sexual Health
2023-12-18 | Journal article
DOI: 10.1071/SH23134
Contributors: Clara Calvert; Rachel Scott; Melissa Palmer; Albert Dube; Milly Marston; Kaye Wellings; Emma Slaymaker; Martin Holt
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Crossref

Neonatal and maternal outcomes following SARS-CoV-2 infection and COVID-19 vaccination: a population-based matched cohort study

Nature Communications
2023-08-29 | Journal article
DOI: 10.1038/s41467-023-40965-9
Contributors: Laura Lindsay; Clara Calvert; Ting Shi; Jade Carruthers; Cheryl Denny; Jack Donaghy; Lisa E. M. Hopcroft; Leanne Hopkins; Anna Goulding; Terry McLaughlin et al.
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Crossref

Effects of exclusive breastfeeding on educational attainment and longitudinal trajectories of grade progression among children in a 13-year follow-up study in Malawi.

Scientific reports
2023-07-14 | Journal article
DOI: 10.1038/s41598-023-38455-5
PMID: 37452129
Contributors: Mohammed S; Emily Webb; Calvert C; Glynn JR; Sunny BS; Crampin AC; Estelle McLean; Munthali-Mkandawire S; Lazarous Nkhata Dube A; Kalobekamo F et al.
Source: Self-asserted source
Clara Calvert

Sexual violence and antiretroviral adherence among women of reproductive age in African population‐based surveys: the moderating role of the perinatal phase

Journal of the International AIDS Society
2023-06 | Journal article
DOI: 10.1002/jia2.26129
Contributors: Leah A. Schrubbe; Heidi Stöckl; Abigail M. Hatcher; Clara Calvert
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Crossref

Comparison of programmatic data from antenatal clinics with population-based HIV prevalence estimates in the era of universal test and treat in western Kenya

PLOS ONE
2023-06-26 | Journal article
DOI: 10.1371/journal.pone.0287626
Contributors: Julie Ambia; Edward Nicol; Julio E. Romero-Prieto; Daniel Kwaro; Kathryn Risher; Sammy Khagayi; Clara Calvert; David Obor; Malebogo Tlhajoane; Fredrick Odongo et al.
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Crossref

The global burden of perinatal common mental health disorders and substance use among migrant women: a systematic review and meta-analysis.

The Lancet. Public health
2023-03-01 | Journal article
DOI: 10.1016/s2468-2667(22)00342-5
PMID: 36841561
Contributors: Stevenson K; Gracia Fellmeth; Edwards S; Calvert C; Phillip Bennett; Oona Campbell; Fuhr DC
Source: Self-asserted source
Clara Calvert

Changes in preterm birth and stillbirth during COVID-19 lockdowns in 26 countries

Nature Human Behaviour
2023-02-27 | Journal article
DOI: 10.1038/s41562-023-01522-y
Contributors: Clara Calvert; Meredith Brockway; Helga Zoega; Jessica E. Miller; Jasper V. Been; Adeladza Kofi Amegah; Amy Racine-Poon; Solmaz Eradat Oskoui; Ishaya I. Abok; Nima Aghaeepour et al.
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Crossref

Severe COVID-19 pneumonitis and timing of birth in women.

The Lancet. Respiratory medicine
2023-02-03 | Journal article
DOI: 10.1016/s2213-2600(22)00531-8
PMID: 36746166
PMC: PMC9897734
Contributors: Calvert C; Stock SJ
Source: Self-asserted source
Clara Calvert

A cluster randomized controlled trial of an electronic decision-support system to enhance antenatal care services in pregnancy at primary healthcare level in Telangana, India: trial protocol.

BMC pregnancy and childbirth
2023-01-26 | Journal article
DOI: 10.1186/s12884-022-05249-y
PMID: 36703109
PMC: PMC9878774
Contributors: Mohan S; Chaudhry M; Ona McCarthy; Jarhyan P; Calvert C; DEVRAJ JINDAL; Shakya R; Emma Radovich; Kondal D; Penn-Kekana L et al.
Source: Self-asserted source
Clara Calvert

A population-based matched cohort study of major congenital anomalies following COVID-19 vaccination and SARS-CoV-2 infection

Nature Communications
2023-01-06 | Journal article
DOI: 10.1038/s41467-022-35771-8
Contributors: Clara Calvert; Jade Carruthers; Cheryl Denny; Jack Donaghy; Lisa E. M. Hopcroft; Leanne Hopkins; Anna Goulding; Laura Lindsay; Terry McLaughlin; Emily Moore et al.
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Crossref

Confirmed SARS-CoV-2 infection in Scottish neonates 2020-2022: a national, population-based cohort study.

Archives of disease in childhood. Fetal and neonatal edition
2023-01-06 | Journal article
DOI: 10.1136/archdischild-2022-324713
PMID: 36609412
PMC: PMC10313998
Contributors: Anna Goulding; McQuaid F; Lindsay L; Agrawal U; Auyeung B; Calvert C; Carruthers J; Denny C; Donaghy J; Hillman S et al.
Source: Self-asserted source
Clara Calvert

Prevalence and risk factors of unsuppressed viral load among pregnant and breastfeeding women in sub-Saharan Africa: analysis from population-based surveys.

AIDS (London, England)
2022-12-09 | Journal article
DOI: 10.1097/qad.0000000000003459
PMID: 36511117
Contributors: Leah Schrubbe; Stöckl H; Hatcher AM; Marston M; Kuchukhidze S; Calvert C
Source: Self-asserted source
Clara Calvert

Measuring the quality of antenatal care in a context of high utilisation: evidence from Telangana, India.

BMC pregnancy and childbirth
2022-11-25 | Journal article
DOI: 10.1186/s12884-022-05200-1
PMID: 36434534
PMC: PMC9700993
Contributors: Emma Radovich; Chaudhry M; Penn-Kekana L; Raju KRK; Mishra A; Vallabhuni R; Jarhyan P; Mohan S; Prabhakaran D; Oona Campbell et al.
Source: Self-asserted source
Clara Calvert

A population-based matched cohort study of early pregnancy outcomes following COVID-19 vaccination and SARS-CoV-2 infection

Nature Communications
2022-10-17 | Journal article
DOI: 10.1038/s41467-022-33937-y
Contributors: Clara Calvert; Jade Carruthers; Cheryl Denny; Jack Donaghy; Sam Hillman; Lisa E. M. Hopcroft; Leanne Hopkins; Anna Goulding; Laura Lindsay; Terry McLaughlin et al.
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Crossref

Pregnancy outcomes after SARS-CoV-2 infection in periods dominated by delta and omicron variants in Scotland: a population-based cohort study.

The Lancet. Respiratory medicine
2022-10-07 | Journal article
DOI: 10.1016/s2213-2600(22)00360-5
PMID: 36216011
PMC: PMC9708088
Contributors: Stock SJ; Emily Moore; Calvert C; Carruthers J; Denny C; Donaghy J; Hillman S; Hopcroft LEM; Hopkins L; Goulding A et al.
Source: Self-asserted source
Clara Calvert

COVID-19 vaccination and SARS-CoV-2 infection in early pregnancy and the risk of major congenital anomalies: a national population-based cohort study

2022-10-06 | Preprint
DOI: 10.21203/rs.3.rs-2129185/v1
Contributors: Rachael Wood; Clara Calvert; Jade Carruthers; Cheryl Denny; Jack Donaghy; Lisa Hopcoft; Leanne Hopkins; Anna Goulding; Laura Lindsay; Terry McLaughlin et al.
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Crossref

Antenatal corticosteroids in adequately equipped facilities in low-resource settings.

The Lancet. Global health
2022-10-01 | Journal article
DOI: 10.1016/s2214-109x(22)00387-4
PMID: 36113517
Contributors: Townsend R; Calvert C
Source: Self-asserted source
Clara Calvert

The association of breastfeeding with cognitive development and educational achievement in sub-Saharan Africa: A systematic review.

Journal of global health
2022-09-03 | Journal article
DOI: 10.7189/jogh.12.04071
PMID: 36057881
PMC: PMC9441109
Contributors: Mohammed S; 0000-0002-4697-4316; Marston M; Glynn JR; Calvert C
Source: Self-asserted source
Clara Calvert

Time trends in the prevalence and determinants of age-appropriate breast feeding among children aged 0-23 months in Ghana: a pooled analysis of population-based surveys, 2003-2017.

BMJ open
2022-08-25 | Journal article
DOI: 10.1136/bmjopen-2021-059928
PMID: 36008076
PMC: PMC9422843
Contributors: Shamsudeen Mohammed; 0000-0002-4697-4316; Marston M; Glynn JR; Calvert C
Source: Self-asserted source
Clara Calvert

Early pregnancy outcomes following COVID-19 vaccination and SARS-CoV-2 infection: a national population-based matched cohort study

2022-08-19 | Preprint
DOI: 10.21203/rs.3.rs-1955486/v1
Contributors: Sarah Stock*; Clara Calvert; Jade Carruthers; Cheryl Denny; Jack Donaghy; Sam Hillman; Lisa Hopcoft; Leanne Hopkins; Anna Goulding; Laura Lindsay et al.
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Crossref

Associations between low Apgar scores and mortality by race in the United States: A cohort study of 6,809,653 infants

PLOS Medicine
2022-07-12 | Journal article
DOI: 10.1371/journal.pmed.1004040
Contributors: Emma Gillette; Mark Tomlinson; James P. Boardman; Clara Calvert; Jeeva John; Sarah J. Stock
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Crossref

Reliability, usability and identified need for home-based cardiometabolic health self-assessment during the COVID-19 pandemic in Soweto, South Africa.

Scientific reports
2022-05-03 | Journal article
DOI: 10.1038/s41598-022-11072-4
PMID: 35505062
PMC: PMC9062861
Contributors: Calvert C; Andrea Kolkenbeck-Ruh; Simone Crouch; Soepnel LM; Ware LJ
Source: Self-asserted source
Clara Calvert

Covid-19 variants of concern and pregnancy.

BMJ medicine
2022-03-02 | Journal article
DOI: 10.1136/bmjmed-2022-000151
PMID: 36936592
PMC: PMC9951363
Contributors: Sarah J Stock; Harmer C; Calvert C
Source: Self-asserted source
Clara Calvert

Health facilities' capability to provide comprehensive postabortion care in Sub-Saharan Africa: Evidence from a cross-sectional survey across 210 high-volume facilities.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
2022-01-21 | Journal article
DOI: 10.1002/ijgo.14056
PMID: 35060621
Contributors: Rachidatou Compaoré; Hedieh Mehrtash; Calvert C; Qureshi Z; Bello FA; Adama Baguiya; Msusa AT; Idi N; Govule P; Tunçalp Ӧ et al.
Source: Self-asserted source
Clara Calvert

SARS-CoV-2 infection and COVID-19 vaccination rates in pregnant women in Scotland.

Nature medicine
2022-01-13 | Journal article
DOI: 10.1038/s41591-021-01666-2
PMID: 35027756
PMC: PMC8938271
Contributors: Sarah J Stock; Jade Carruthers; Calvert C; Cheryl Denny; Donaghy J; Anna Goulding; Lisa EM Hopcroft; Leanne Hopkins; McLaughlin T; Pan J et al.
Source: Self-asserted source
Clara Calvert

Prevalence and determinants of self-reported anxiety and stress among women with abortion-related complications admitted to health facilities in Eastern and Southern Africa: A cross-sectional survey.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
2022-01-11 | Journal article
DOI: 10.1002/ijgo.14042
PMID: 35014698
Contributors: Pershad J; Mugerwa KY; Filippi V; Hedieh Mehrtash; KWAME ADU-BONSAFFOH; Bello FA; Rachidatou Compaoré; Gadama L; Govule P; Qureshi Z et al.
Source: Self-asserted source
Clara Calvert

The relationship between insecurity and the quality of hospital care provided to women with abortion-related complications in the Democratic Republic of Congo: A cross-sectional analysis.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
2021-12-10 | Journal article
DOI: 10.1002/ijgo.14031
PMID: 34888865
Contributors: Wolomby-Molondo JJ; Calvert C; Seguin R; Qureshi Z; Tunçalp Ö; Filippi V
Source: Self-asserted source
Clara Calvert

Experiences of women seeking care for abortion complications in health facilities: Secondary analysis of the WHO Multi-Country Survey on Abortion in 11 African countries.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
2021-12-05 | Journal article
DOI: 10.1002/ijgo.13987
PMID: 34866183
Contributors: Govule P; Baumann S; Jean-Paul Dossou; Calvert C; Goufodji S; Hedieh Mehrtash; Tuncalp Ö; KWAME ADU-BONSAFFOH; Rachidatou Compaoré; Filippi V
Source: Self-asserted source
Clara Calvert

Trends and risk factors for non-communicable diseases mortality in Nairobi slums (2008-2017).

Global epidemiology
2021-11-01 | Journal article
DOI: 10.1016/j.gloepi.2021.100049
PMID: 34977550
PMC: PMC8683743
Contributors: Asiki G; Kadengye T. Damazo; Calvert C; Marylene Wamukoya; Mohamed SF; Abdhalah Ziraba; Iddi S; Martin Bangha; Wekesah F; Claudious Chikozho et al.
Source: Self-asserted source
Clara Calvert

Maternal mortality in the covid-19 pandemic: findings from a rapid systematic review

Global Health Action
2021-10-26 | Journal article
DOI: 10.1080/16549716.2021.1974677
Contributors: Clara Calvert; Jeeva John; Farirai P Nzvere; Jenny A. Cresswell; Sue Fawcus; Edward Fottrell; Lale Say; Wendy J. Graham
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Crossref

Adolescents' satisfaction with care for abortion-related complications in 11 Sub-Saharan African countries: A cross-sectional facility-based study.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
2021-10-22 | Journal article
DOI: 10.1002/ijgo.13896
PMID: 34676896
Contributors: Eboigbe E; Gadama L; Filippi V; Hedieh Mehrtash; KWAME ADU-BONSAFFOH; Folasade Adenike (Nike) Bello; Rachidatou Compaoré; Jean-Paul Dossou; Idi N; Kim CR et al.
Source: Self-asserted source
Clara Calvert

Level and determinants of contraceptive uptake among women attending facilities with abortion-related complications in East and Southern Africa.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
2021-10-22 | Journal article
DOI: 10.1002/ijgo.13898
PMID: 34676892
Contributors: Qureshi Z; Jamner A; Filippi V; George Gwako; Osoti A; Hedieh Mehrtash; Adama Baguiya; Folasade Adenike (Nike) Bello; Rachidatou Compaoré; Gadama L et al.
Source: Self-asserted source
Clara Calvert

Investigating the effect of relationship satisfaction on postpartum women’s health-related quality of life in Burkina Faso: a cross-sectional analysis

BMJ Open
2021-09 | Journal article
DOI: 10.1136/bmjopen-2020-048230
Contributors: Paul Lokubal; Clara Calvert; Simon Cousens; Marina Daniele; Rasmané Ganaba; Veronique Filippi
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Crossref

COVID-19 and maternal and perinatal outcomes.

The Lancet. Global health
2021-08-01 | Journal article
DOI: 10.1016/s2214-109x(21)00302-8
PMID: 34297957
PMC: PMC8293947
Contributors: Calvert C; John J; Farirai Peter Nzvere; Wendy Graham
Source: Self-asserted source
Clara Calvert

Age patterns of HIV incidence in eastern and southern Africa: a modelling analysis of observational population-based cohort studies.

The lancet. HIV
2021-07-01 | Journal article
DOI: 10.1016/s2352-3018(21)00069-2
PMID: 34197773
PMC: PMC8258368
Contributors: Kathryn Risher; Cori A; Reniers G; Marston M; Calvert C; Crampin A; Dadirai T; Albert Lazarous Nkhata Dube; Simon Gregson; Herbst K et al.
Source: Self-asserted source
Clara Calvert

The international Perinatal Outcomes in the Pandemic (iPOP) study: protocol.

Wellcome open research
2021-02-02 | Journal article
DOI: 10.12688/wellcomeopenres.16507.1
PMID: 34722933
PMC: PMC8524299
Contributors: Sarah J Stock; Zoega H; Brockway M; Mulholland RH; Jessica E. Miller; Jasper Been; Rachael Wood; Abok II; Belal Alshaikh; Ayede AI et al.
Source: Self-asserted source
Clara Calvert

Abortion metrics: a scoping review of abortion measures and indicators.

BMJ global health
2021-01-01 | Journal article
DOI: 10.1136/bmjgh-2020-003813
PMID: 33514592
PMC: PMC7849886
Contributors: veronique filippi; Mardieh L. Dennis; Calvert C; Tunçalp Ö; Ganatra B; Kim CR; Ronsmans C
Source: Self-asserted source
Clara Calvert

Direct maternal deaths attributable to HIV in the era of antiretroviral therapy: evidence from three population-based HIV cohorts with verbal autopsy.

AIDS (London, England)
2020-07-01 | Journal article
DOI: 10.1097/qad.0000000000002552
PMID: 32590436
Contributors: Calvert C; Marston M; Emma Slaymaker; Amelia Crampin; Alison Price; Nigel Klein; Herbst K; Michael D; Urassa M; Samuel J. Clark et al.
Source: Self-asserted source
Clara Calvert

Incidence of maternal peripartum infection: A systematic review and meta-analysis

PLOS Medicine
2019-12-10 | Journal article
DOI: 10.1371/journal.pmed.1002984
Contributors: Susannah L. Woodd; Gordon C. Smith; Ana Montoya; Maria Barreix; Li Pi; Clara Calvert; Andrea M. Rehman; Doris Chou; Oona M. R. Campbell
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Crossref

HIV epidemiology among female sex workers and their clients in the Middle East and North Africa: systematic review, meta-analyses, and meta-regressions.

BMC medicine
2019-06-24 | Journal article
DOI: 10.1186/s12916-019-1349-y
PMID: 31230594
PMC: PMC6589882
Contributors: Hiam Chemaitelly; Helen Weiss; Calvert C; Harfouche M; Laith Abu-Raddad
Source: Self-asserted source
Clara Calvert

The magnitude and severity of abortion-related morbidity in settings with limited access to abortion services: a systematic review and meta-regression.

BMJ global health
2018-06-29 | Journal article
DOI: 10.1136/bmjgh-2017-000692
PMID: 29989078
PMC: PMC6035513
Contributors: Calvert C; Owolabi OO; Felicia Yeung; Pittrof R; Bela Ganatra; Ӧzge Tunçalp; Alma Adler; Filippi V
Source: Self-asserted source
Clara Calvert

Setting the research agenda for induced abortion in Africa and Asia.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
2018-05-30 | Journal article
DOI: 10.1002/ijgo.12525
PMID: 29745418
Contributors: Rachel Scott; Filippi V; Moore AM; Rajib Acharya; Bankole A; Calvert C; Church K; Jenny Cresswell; Katy Footman; Gleason J et al.
Source: Self-asserted source
Clara Calvert

The frequency of maternal morbidity: A systematic review of systematic reviews.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
2018-05-01 | Journal article
DOI: 10.1002/ijgo.12468
PMID: 29851116
PMC: PMC6001670
Contributors: Giorgia Gon; Andreia Leite; Calvert C; Woodd S; Wendy Graham; Filippi V
Source: Self-asserted source
Clara Calvert

The Network for Analysing Longitudinal Population-based HIV/AIDS data on Africa (ALPHA): Data on mortality, by HIV status and stage on the HIV care continuum, among the general population in seven longitudinal studies between 1989 and 2014

Gates Open Research
2017-11-06 | Journal article
DOI: 10.12688/gatesopenres.12753.1
Contributors: Emma Slaymaker; Estelle McLean; Alison Wringe; Clara Calvert; Milly Marston; Georges Reniers; Chodziwadziwa Whiteson Kabudula; Amelia Crampin; Alison Price; Denna Michael et al.
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Crossref

Tuberculosis mortality and the male survival deficit in rural South Africa: An observational community cohort study.

PloS one
2017-10-10 | Journal article
DOI: 10.1371/journal.pone.0185692
PMID: 29016619
PMC: PMC5634548
Contributors: Georges Reniers; Blom S; Judith Lieber; Herbst AJ; Calvert C; Bor J; Barnighausen T; Zaba B; Li ZR; Samuel J. Clark et al.
Source: Self-asserted source
Clara Calvert

Trends in the burden of HIV mortality after roll-out of antiretroviral therapy in KwaZulu-Natal, South Africa: an observational community cohort study.

The lancet. HIV
2016-12-10 | Journal article
DOI: 10.1016/s2352-3018(16)30225-9
PMID: 27956187
PMC: PMC5405557
Contributors: Georges Reniers; Blom S; Calvert C; Alexandra Martin-Onraet; Herbst AJ; Jeff Imai-Eaton; Bor J; Emma Slaymaker; Li ZR; Samuel J. Clark et al.
Source: Self-asserted source
Clara Calvert
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Peer review (4 reviews for 4 publications/grants)

Review activity for BMC medicine (1)
Review activity for Gates open research. (1)
Review activity for PloS one. (1)
Review activity for The Lancet regional health. (1)
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