Imperial College London

ProfessorMarie-ClaudeBoily

Faculty of MedicineSchool of Public Health

Professor of Mathematical Epidemiology
 
 
 
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Contact

 

+44 (0)20 7594 3263mc.boily

 
 
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Location

 

LG26Norfolk PlaceSt Mary's Campus

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Summary

 

Publications

Publication Type
Year
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291 results found

Bradley J, Rajaram SP, Moses S, Boily MC, Ramesh BM, Isac S, Lobo A, Gowda GC, Pushpalatha R, Gurav K, Kumar S, Washington R, Pickles M, Alary Met al., 2012, Why do condoms break? A study of female sex workers in Bangalore, south India, SEXUALLY TRANSMITTED INFECTIONS, Vol: 88, Pages: 163-170, ISSN: 1368-4973

Journal article

Boily M-C, Alary M, Baggaley RF, 2012, Neglected Issues and Hypotheses Regarding the Impact of Sexual Concurrency on HIV and Sexually Transmitted Infections, AIDS AND BEHAVIOR, Vol: 16, Pages: 304-311, ISSN: 1090-7165

Journal article

Deering KN, Boily M-C, Lowndes CM, Shoveller J, Tyndall MW, Vickerman P, Bradley J, Gurav K, Pickles M, Moses S, Ramesh BM, Washington R, Rajaram S, Alary Met al., 2011, A dose-response relationship between exposure to a large-scale HIV preventive intervention and consistent condom use with different sexual partners of female sex workers in southern India, BMC Public Health, Vol: 11 Suppl 6, ISSN: 1471-2458

BackgroundThe Avahan Initiative, a large-scale HIV preventive intervention targeted to high-risk populations including female sex workers (FSWs), was initiated in 2003 in six high-prevalence states in India, including Karnataka. This study assessed if intervention exposure was associated with condom use with FSWs’ sexual partners, including a dose-response relationship.MethodsData were from a cross-sectional study (2006-07) of 775 FSWs in three districts in Karnataka. Survey methods accounted for the complex cluster sampling design. Bivariate and multivariable logistic regression was used to separately model the relationships between each of five intervention exposure variables and five outcomes for consistent condom use (CCU= always versus frequently/sometimes/never) with different sex partners, including with: all clients; occasional clients; most recent repeat client; most recent non-paying partner; and the husband or cohabiting partner. Linear tests for trends were conducted for three continuous intervention exposure variables.ResultsFSWs reported highest CCU with all clients (81.7%); CCU was lowest with FSWs’ husband or cohabiting partner (9.6%). In multivariable analysis, the odds of CCU with all clients and with occasional clients were 6.3-fold [95% confidence intervals, CIs: 2.8-14.5] and 2.3-fold [95% CIs: 1.4-4.1] higher among FSWs contacted by intervention staff and 4.9-fold [95% CIs: 2.6-9.3] and 2.3-fold [95% CIs: 1.3-4.1] higher among those who ever observed a condom demonstration by staff, respectively, compared to those who had not. A significant dose-response relationship existed between each of these CCU outcomes and increased duration since first contacted by staff (P=0.001; P=0.006) and numbers of condom demonstrations witnessed (P=0.004; P=0.026); a dose-response relationship was also observed between condom use with all clients and number of times contacted by staff (P=0.047). Intervention exposure was not associated with higher odd

Journal article

Deering KN, Bhattacharjee P, Bradley J, Moses SS, Shannon K, Shaw SY, Washington R, Lowndes CM, Boily M-C, Ramesh BM, Rajaram S, Gurav K, Alary Met al., 2011, Condom use within non-commercial partnerships of female sex workers in southern India, BMC Public Health, Vol: 11, ISSN: 1471-2458

BackgroundAlthough female sex workers (FSWs) report high levels of condom use with commercial sex clients, particularly after targeted HIV preventive interventions have been implemented, condom use is often low with non-commercial partners. There is limited understanding regarding the factors that influence condom use with FSWs’ non-commercial partners, and of how programs can be designed to increase condom use with these partners. The main objectives of this study were therefore to describe FSWs’ self-reported non-commercial partners, along with interpersonal factors characterizing their non-commercial partnerships, and to examine the factors associated with consistent condom use (CCU) within non-commercial partnerships.MethodsThis study used data collected from cross-sectional questionnaires administered to 988 FSWs in four districts in Karnataka state in 2006-07. We used bivariate and multivariable logistic regression analysis to examine the relationship between CCU (i.e., ‘always’ compared to ‘never’, ‘sometimes’ or ‘frequently’) with non-commercial partners of FSWs (including the respondents’ husband or main cohabiting partner [if not married] and their most recent non-paying partner [who is neither a husband nor the main cohabiting partner, and with whom the FSW had sex within the previous year]) and interpersonal factors describing these partnerships, as well as social and environmental factors. Weighting and survey methods were used to account for the cluster sampling design.ResultsOverall, 511 (51.8%) FSWs reported having a husband or cohabiting partner and 247 (23.7%) reported having a non-paying partner. CCU with these partners was low (22.6% and 40.3% respectively). In multivariable analysis, the odds of CCU with FSWs’ husband or cohabiting partner were 1.8-fold higher for FSWs whose partner knew she was a sex worker (adjusted odds ratio [AOR]: 1.84, 95% confidence intervals[CI]: 1.0

Journal article

Boily M-C, Dimitrov D, Karim SSA, Masse Bet al., 2011, The future role of rectal and vaginal microbicides to prevent HIV infection in heterosexual populations: implications for product development and prevention, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: 646-653, ISSN: 1368-4973

Journal article

Dimitrov DT, Boily M-C, Baggaley RF, Masse Bet al., 2011, Modeling the gender-specific impact of vaginal microbicides on HIV transmission, JOURNAL OF THEORETICAL BIOLOGY, Vol: 288, Pages: 9-20, ISSN: 0022-5193

Journal article

Boily M-C, Mâsse BR, Dimitrov D, 2011, Oral antiretroviral pre-exposure prophylaxis reduces the risk of HIV acquisition among men who have sex with men., Evid Based Med, Vol: 16, Pages: 146-147

Journal article

Brisson M, van de Velde N, Franco EL, Drolet M, Boily M-Cet al., 2011, Incremental Impact of Adding Boys to Current Human Papillomavirus Vaccination Programs: Role of Herd Immunity, JOURNAL OF INFECTIOUS DISEASES, Vol: 204, Pages: 372-376, ISSN: 0022-1899

Journal article

Mohlala BKF, Boily M-C, Gregson S, 2011, The forgotten half of the equation: randomized controlled trial of a male invitation to attend couple voluntary counselling and testing, AIDS, Vol: 25, Pages: 1535-1541, ISSN: 0269-9370

Journal article

Pickles M, Boily MC, Vickerman P, Ramesh BM, Washington R, Deering K, Verma S, Blanchard J, Moses S, Alary Met al., 2011, TIME EVOLUTION OF THE FRACTION OF NEW HIV INFECTIONS DUE TO PRIMARY INFECTION AMONG HIGH RISK GROUPS IN SOUTHERN INDIA, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A50-A51, ISSN: 1368-4973

Journal article

Dimitrov D, Boily MC, Masse B, 2011, IMPACT OF PILL SHARING ON DRUG-RESISTANCE AND POPULATION-LEVEL EFFECTIVENESS OF A WIDE-SCALE ORAL PREP INTERVENTION IN RESOURCE-CONSTRAINED SETTINGS, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A35-A35, ISSN: 1368-4973

Journal article

Pickles M, Adhikary R, Mainkar M, P RS, Deering K, Verma S, Boily MC, Vickerman P, Alary Met al., 2011, INVESTIGATING SELF-REPORTED LEVEL OF CONDOM USE AND CONDOM USE IN LAST ACT AMONG HIGH-RISK GROUPS IN SOUTHERN INDIA, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A180-A181, ISSN: 1368-4973

Journal article

Deering K, Bhattacharjee P, Mohan HL, Bradley J, Shannon K, Boily MC, Ramesh BM, Isac S, Moses S, Blanchard Jet al., 2011, OCCUPATIONAL AND INTIMATE PARTNER VIOLENCE AND INCONSISTENT CONDOM USE WITH CLIENTS AMONG FEMALE SEX WORKERS IN SOUTHERN INDIA, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A66-A67, ISSN: 1368-4973

Journal article

Deering K, Shoveller J, Pickles M, Shaw S, Moses S, Blanchard J, Washington R, Ramesh BM, Isac S, Boily MCet al., 2011, VARIABILITY IN THE NUMBERS AND TYPES OF SEX PARTNERS OF FEMALE SEX WORKERS AND ITS IMPACT ON HIV PREVALENCE IN SOUTHERN INDIA, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A43-A44, ISSN: 1368-4973

Journal article

Boily MC, 2011, USE OF TRANSMISSION DYNAMICS MODELS TO DESIGN AND EVALUATE THE IMPACT OF LARGE SCALE HIV/STI PREVENTION INTERVENTION: HOW, WHY AND WHEN?, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A4-A4, ISSN: 1368-4973

Journal article

Mishra S, Boily MC, Steen R, Lo YR, Gerbase Aet al., 2011, IMPACT OF TARGETED INTERVENTIONS IN HIV EPIDEMICS AS PREDICTED BY MATHEMATICAL MODELS: A SYSTEMATIC REVIEW, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A35-A35, ISSN: 1368-4973

Journal article

Pickles M, Ramesh BM, Adhikary R, Rajaram S, Isac S, Washington R, Boily MC, Bradley J, Moses S, Alary Met al., 2011, QUANTIFYING SOCIAL DESIRABILITY BIASES IN REPORTED CONDOM USE AMONG FEMALE SEX WORKERS IN SOUTHERN INDIA, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A162-A162, ISSN: 1368-4973

Journal article

Dureau J, Boily MC, Vickerman P, Pickles M, Isac S, Ramesh B, Verma S, Moses S, Alary M, Kalogeropoulos Ket al., 2011, WHAT HAS BEEN THE EFFECT OF THE AVAHAN HIV INTERVENTION ON CONDOM USE AMONG FEMALE SEX WORKERS? INSIGHTS FROM A FULLY BAYESIAN INFERENCE METHODOLOGY, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A197-A198, ISSN: 1368-4973

Journal article

Boily MC, 2011, THE RELATIVE CONTRIBUTION OF ANAL INTERCOURSE AND PRIMARY INFECTION TO MATURE HETEROSEXUAL HIV EPIDEMICS, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A38-A38, ISSN: 1368-4973

Journal article

Vickerman P, Pickles M, Lowndes CM, Ramesh BM, Washington R, Moses S, Deering K, Reza-Paul S, Vassall A, Bradley J, Blanchard J, Alary M, Boily MCet al., 2011, IMPACT OF THE AVAHAN INTERVENTION ON HIV/STI TRANSMISSION AMONGST HIGH AND LOW-RISK GROUPS: AN INTERIM MODELLING ASSESSMENT, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A8-A9, ISSN: 1368-4973

Journal article

Mishra S, Moses S, Pickles M, Ramesh BM, Isac S, Washington R, Becker M, Blanchard J, Boily MCet al., 2011, MODELLING THE IMPACT OF RAPID TREPONEMAL TESTS ON SYPHILIS PREVALENCE AMONG FEMALE SEX WORKERS IN INDIA, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: A206-A207, ISSN: 1368-4973

Journal article

Boily M-C, 2011, THE USE OF TRANSMISSION DYNAMICS MODELS TO DESIGN AND EVALUATE THE IMPACT OF LARGE SCALE HIV PREVENTION PROGRAMMES, 3rd North American Congress of Epidemiology, Publisher: OXFORD UNIV PRESS INC, Pages: S80-S80, ISSN: 0002-9262

Conference paper

Mishra S, Boily M-C, Ng V, Gold WL, Okura T, Shaw M, Mazzulli T, Fisman DNet al., 2011, The Laboratory Impact of Changing Syphilis Screening From the Rapid-Plasma Reagin to a Treponemal Enzyme Immunoassay: A Case-study From the Greater Toronto Area, SEXUALLY TRANSMITTED DISEASES, Vol: 38, Pages: 190-196, ISSN: 0148-5717

Journal article

Baggaley RF, Powers KA, Boily M-C, 2011, What do mathematical models tell us about the emergence and spread of drug-resistant HIV?, CURRENT OPINION IN HIV AND AIDS, Vol: 6, Pages: 131-140, ISSN: 1746-630X

Journal article

Brisson M, Van de Velde N, Boily M-C, 2011, Different population-level vaccination effectiveness for HPV types 16, 18, 6 and 11, SEXUALLY TRANSMITTED INFECTIONS, Vol: 87, Pages: 41-43, ISSN: 1368-4973

Journal article

Mishra S, Fisman DN, Boily M-C, 2011, The ABC of terms used in mathematical models of infectious diseases, JOURNAL OF EPIDEMIOLOGY AND COMMUNITY HEALTH, Vol: 65, Pages: 87-94, ISSN: 0143-005X

Journal article

Phillips AE, Gomez GB, Boily MC, Garnett GPet al., 2010, A systematic review and meta-analysis of quantitative interviewing tools to investigate self-reported HIV and STI associated behaviours in low- and middle-income countries., Int J Epidemiology. (in press).

Journal article

Phillips AE, Gomez GB, Boily M-C, Garnett GPet al., 2010, A systematic review and meta-analysis of quantitative interviewing tools to investigate self-reported HIV and STI associated behaviours in low- and middle-income countries, INTERNATIONAL JOURNAL OF EPIDEMIOLOGY, Vol: 39, Pages: 1541-1555, ISSN: 0300-5771

Journal article

Deering KN, Tyndall MW, Shoveller J, Moses S, Blanchard JF, Shaw S, Ramesh BM, Isac S, Boily M-Cet al., 2010, Factors Associated With Numbers of Client Partners of Female Sex Workers Across Five Districts in South India, SEXUALLY TRANSMITTED DISEASES, Vol: 37, Pages: 687-695, ISSN: 0148-5717

Journal article

Vickerman P, Foss AM, Pickles M, Deering K, Verma S, Demers E, Lowndes CM, Moses S, Alary M, Boily M-Cet al., 2010, To what extent is the HIV epidemic in southern India driven by commercial sex? A modelling analysis, AIDS, Vol: 24, Pages: 2554-2563, ISSN: 0269-9370

Journal article

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