Marco Johannes Haenssgen

Dr. Marco Johannes Haenssgen


Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 January 2019 in The Lancet Global Health
Verified
Journal Article
Open access
TAThomas ALTHAUS
Thomas ALTHAUS
RGRachel C Greer
Rachel C Greer
MSMyo Maung Maung Swe
Myo Maung Maung Swe
JCJoshua Cohen
Joshua Cohen
NTNi Ni Tun
Ni Ni Tun
YLYoel Lubell
Yoel Lubell
In southeast Asia, antibiotic prescription in febrile patients attending primary care is common, and a probable contributor to the high burden of antimicrobial resistance. The objective of this trial was to explore whether C-reactive protein (CRP) testing at point of care could rationalise antibiotic prescription in primary care, comparing two proposed thresholds to classify CRP concentrations as low or high to guide antibiotic treatment. We did a multicentre, open-label, randomised, controlled trial in participants aged at least 1 year with a documented fever or a chief complaint of fever (regardless of previous antibiotic intake and comorbidities other than malignancies) recruited from six public primary care units in Thailand and three primary care clinics and one outpatient department in Myanmar. Individuals were randomly assigned using a computer-based randomisation system at a ratio of 1:1:1 to either the control group or one of two CRP testing groups, which used thresholds of 20 mg/L (group A) or 40 mg/L CRP (group B) to guide antibiotic prescription. Health-care providers were masked to allocation between the two intervention groups but not to the control group. The primary outcome was the prescription of any antibiotic from day 0 to day 5 and the proportion of patients who were prescribed an antibiotic when CRP concentrations were above and below the 20 mg/L or 40 mg/L thresholds. The primary outcome was analysed in the intention-to-treat and per-protocol populations. The trial is registered with ClinicalTrials.gov, number NCT02758821, and is now completed. Between June 8, 2016, and Aug 25, 2017, we recruited 2410 patients, of whom 803 patients were randomly assigned to CRP group A, 800 to CRP group B, and 807 to the control group. 598 patients in CRP group A, 593 in CRP group B, and 767 in the control group had follow-up data for both day 5 and day 14 and had been prescribed antibiotics (or not) in accordance with test results (per-protocol population). During the trial, 318 (39%) of 807 patients in the control group were prescribed an antibiotic by day 5, compared with 290 (36%) of 803 patients in CRP group A and 275 (34%) of 800 in CRP group B. The adjusted odds ratio (aOR) of 0·80 (95% CI 0·65-0·98) and risk difference of -5·0 percentage points (95% CI -9·7 to -0·3) between group B and the control group were significant, although lower than anticipated, whereas the reduction in prescribing in group A compared with the control group was not significant (aOR 0·86 [0·70-1·06]; risk difference -3·3 percentage points [-8·0 to 1·4]). Patients with high CRP concentrations in both intervention groups were more likely to be prescribed an antibiotic than in the control group (CRP ≥20 mg/L: group A vs control group, p<0·0001; CRP ≥40 mg/L: group B vs control group, p<0·0001), and those with low CRP concentrations were more likely to have an antibiotic withheld (CRP <20 mg/L: group A vs control group, p<0·0001; CRP <40 mg/L: group B vs control group, p<0·0001). 24 serious adverse events were recorded, consisting of 23 hospital admissions and one death, which occurred in CRP group A. Only one serious adverse event was thought to be possibly related to the study (a hospital admission in CRP group A). In febrile patients attending primary care, testing for CRP at point of care with a threshold of 40 mg/L resulted in a modest but significant reduction in antibiotic prescribing, with patients with high CRP being more likely to be prescribed an antibiotic, and no evidence of a difference in clinical outcomes. This study extends the evidence base from lower-income settings supporting the use of CRP tests to rationalise antibiotic use in primary care patients with an acute febrile illness. A key limitation of this study is the individual rather than cluster randomised study design which might have resulted in contamination between the study groups, reducing the effect size of the intervention. Wellcome Trust Institutional Strategic Support Fund grant (105605/Z/14/Z) and Foundation for Innovative New Diagnostics (FIND) funding from the Australian Government.

1 November 2018 in Antibiotics
Verified
Journal Article
Open access
PDF file
MHMarco Johannes Haenssgen
Marco Johannes Haenssgen
TXThipphaphone Xayavong
Thipphaphone Xayavong
NCNutcha Charoenboon
Nutcha Charoenboon
PWPenporn Warapikuptanun
Penporn Warapikuptanun
YZYuzana Khine Zaw
Yuzana Khine Zaw
Education and awareness raising are the primary tools of global health policy to change public behaviour and tackle antimicrobial resistance. Considering the limitations of an awareness agenda, and the lack of social research to inform alternative approaches, our objective was to generate new empirical evidence on the consequences of antibiotic-related awareness raising in a low-income country context. We implemented an educational activity in two Lao villages to share general antibiotic-related messages and also to learn about people’s conceptions and health behaviours. Two rounds of census survey data enabled us to assess the activity’s outputs, its knowledge outcomes, and its immediate behavioural impacts in a difference-in-difference design. Our panel data covered 1130 adults over two rounds, including 58 activity participants and 208 villagers exposed indirectly via conversations in the village. We found that activity-related communication circulated among more privileged groups, which limited its indirect effects. Among participants, the educational activity influenced the awareness and understanding of “drug resistance”, whereas the effects on attitudes were minor. The evidence on the behavioural impacts was sparse and mixed, but the range of possible consequences included a disproportionate uptake of antibiotics from formal healthcare providers. Our study casts doubt on the continued dominance of awareness raising as a behavioural tool to address antibiotic resistance.

20 August 2019 in BMJ Open
Verified
Journal Article
Open access
PDF file
MHMarco Johannes Haenssgen
Marco Johannes Haenssgen
NCNutcha Charoenboon
Nutcha Charoenboon
GZGiacomo Zanello
Giacomo Zanello
MMMayfong Mayxay
Mayfong Mayxay
FRFelix Reed-Tsochas
Felix Reed-Tsochas
PAProochista Ariana
Proochista Ariana
Introduction: Low-income and middle-income countries (LMICs) are crucial in the global response to antimicrobial resistance (AMR), but diverse health systems, healthcare practices and cultural conceptions of medicine can complicate global education and awareness-raising campaigns. Social research can help understand LMIC contexts but remains under-represented in AMR research. Objective: To (1) Describe antibiotic-related knowledge, attitudes and practices of the general population in two LMICs. (2) Assess the role of antibiotic-related knowledge and attitudes on antibiotic access from different types of healthcare providers. Design: Observational study: cross-sectional rural health behaviour survey, representative of the population level. Setting: General rural population in Chiang Rai (Thailand) and Salavan (Lao PDR), surveyed between November 2017 and May 2018. Participants: 2141 adult members (≥18 years) of the general rural population, representing 712 000 villagers. Outcome measures: Antibiotic-related knowledge, attitudes and practices across sites and healthcare access channels. Findings: Villagers were aware of antibiotics (Chiang Rai: 95.7%; Salavan: 86.4%; p<0.001) and drug resistance (Chiang Rai: 74.8%; Salavan: 62.5%; p<0.001), but the usage of technical concepts for antibiotics was dwarfed by local expressions like ‘anti-inflammatory medicine’ in Chiang Rai (87.6%; 95% CI 84.9% to 90.0%) and ‘ampi’ in Salavan (75.6%; 95% CI 71.4% to 79.4%). Multivariate linear regression suggested that attitudes against over-the-counter antibiotics were linked to 0.12 additional antibiotic use episodes from public healthcare providers in Chiang Rai (95% CI 0.01 to 0.23) and 0.53 in Salavan (95% CI 0.16 to 0.90). Conclusions: Locally specific conceptions and counterintuitive practices around antimicrobials can complicate AMR communication efforts and entail unforeseen consequences. Overcoming ‘knowledge deficits’ alone will therefore be insufficient for global AMR behaviour change. We call for an expansion of behavioural AMR strategies towards ‘AMR-sensitive interventions’ that address context-specific upstream drivers of antimicrobial use (eg, unemployment insurance) and complement education and awareness campaigns. Trial registration number: Clinicaltrials.gov identifier NCT03241316 .

1 April 2018 in World Development
Verified
Journal Article
Open access
MHMarco Johannes Haenssgen
Marco Johannes Haenssgen

12 May 2017 in Oxford Development Studies
Verified
Journal Article
Open access
MHMarco Johannes Haenssgen
Marco Johannes Haenssgen
PAProochista Ariana
Proochista Ariana
Increasing scholarly attention has focussed on how to integrate technology within the Capability Approach (CA), yet without a consistent solution. Some describe technology as a special kind of capability input, but others consider the concept of technology to be fundamentally different from that of an ordinary input. We aim to contribute to the theoretical development of the CA by offering a consistent justification for the explicit inclusion of technology in this framework. We propose that technical objects have a ‘generative’ and a ‘transformative’ dimension through which they enable capabilities directly and affect other inputs in the attainment of valued capabilities. The objects acquire the transformative dimension from the broader technological context, which we propose as a new class of conversion factors. Using the example of mobile phones and their role in healthcare access, we demonstrate that our proposal helps to frame the analysis of the development impact of technology.

26 February 2019 in Palgrave Communications
Verified
Journal Article
Open access
PDF file
NCNutcha Charoenboon
Nutcha Charoenboon
MHMarco Johannes Haenssgen
Marco Johannes Haenssgen
PWPenporn Warapikuptanun
Penporn Warapikuptanun
TXThipphaphone Xayavong
Thipphaphone Xayavong
YZYuzana Khine Zaw
Yuzana Khine Zaw
Antimicrobial resistance (AMR) threatens to cause ten million deaths annually by 2050, making it a top item on the global health agenda. The current global policy response is multi-faceted, wherein behavioural dimensions like people’s medicine use are being predominantly addressed with education and communication campaigns. The social sciences literature suggests that cross-contextual translation of medical knowledge in global awareness campaigns can create misunderstandings and adverse behavioural responses. However, the consequences of AMR communication in low-income and middle-income contexts remain largely undocumented. In response to the empirical knowledge gap, this study presents the case study of educational activity in three northern Thai villages with the objective of contributing to the understanding of the consequences (and their contextual influences) when sharing antibiotic-related information in a rural middle-income setting. The activity’s messages were based on World Health Organization AMR awareness-raising material. A mixed-methods research design informed the analysis. Descriptive difference-in-difference and geographical analysis based on complete village census surveys with a 3-month interval (n = 1096) was supplemented by qualitative data and observations from the educational activity. The underlying conceptual framework hypothesised that outcomes arise via (a) direct participation and indirect exposure (posters, conversations), subject to translational processes and physical and health system contexts; and via (b) the activity’s influence on village social networks. The outcomes demonstrated that participants aligned their antibiotic-related attitudes and behaviours with the activity’s recommendations. Aside from language barriers (which excluded non-Thai speakers), fragmented local healthcare landscapes limited villagers’ ability to act on the activity but also provided a market opportunity for informal antibiotics sales, and interactions with parallel yet misunderstood public health campaigns created rumours and resistance. Social support from community members also promoted healthy behaviours but remained unaffected by the activity. As one of the most detailed mixed-method assessments of public engagement in AMR, this study challenges the current dominance of awareness-raising campaigns to change population behaviours. We call for comprehensive mixed-method evaluations of future campaigns, mandatory two-directional knowledge exchange components, and alternative behaviour change approaches that respond to contextual constraints like precarity rather than alleged knowledge deficits.