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Introduction: Hawthorne effect refers to changes in clinician behavior in response to being observed. It has been minimally evaluated in trauma and surgical research, especially in low- and middle-income countries (LMICs)., Methods: We used data from the first (control) phase of a randomized clinical trial in Ghana (2020-21). Trained observers were stationed in emergency units in eight non-tertiary hospitals to observe the achievement of key performance indicators (KPI) (KPIs) of trauma care. We hypothesized that the observers' presence would create a Hawthorne effect, resulting in clinicians (doctors, nurses) performing above their usual level, with performance highest immediately after the observers were introduced, and with performance then declining over time toward the usual baseline., Results: We enrolled 2067 injured patients. Achievement of 13 out of 16 KPIs declined significantly over the 14 months after the introduction of observers. For example, airway assessment declined from 77% initially to 60% at the end of the phase (p < 0.001). Chest examination declined from 66% to 31% (p < 0.001). Distal pulses checked declined from 45% to 7% (p < 0.001). The slope of decline in KPI achievement ranged from 0.8%/month (mobility assessed) to 15.9%/month (distal pulses checked)., Conclusions: The decline in KPI achievement over time is consistent with the hypothesis that clinicians performed above their usual level just after the observers were introduced, with performance then declining toward the usual baseline. This study is among the first to provide quantitative data on the Hawthorne effect for trauma research in LMICs. These data are useful for the design of future observational studies and clinical trials., (© 2024 International Society of Surgery/Société Internationale de Chirurgie (ISS/SIC).)

Background: We sought to determine the achievement of key performance indicators (KPIs) of initial trauma care at district (first-level) and regional (second-level) hospitals in Ghana and to assess the effectiveness of a standardized trauma intake form (TIF) to improve care., Methods: A stepped-wedge cluster randomized trial was performed with direct observations of trauma management before and after introducing the TIF at emergency units of eight hospitals for 17.5 months. Differences in KPIs were assessed using multivariable logistic regression and generalized linear mixed regression., Results: Management of 4077 patients was observed; 30% at regional and 70% at district hospitals. Eight of 20 KPIs were performed significantly more often at regional hospitals. TIF improved care at both levels. Fourteen KPIs improved significantly at district and eight KPIs improved significantly at regional hospitals. After TIF, regional hospitals still performed better with 18 KPIs being performed significantly more often than district hospitals. After TIF, all KPIs were performed in >90% of patients at regional hospitals. Examples of KPIs for which regional performed better than district hospitals after TIF included: assessment for oxygen saturation (83% vs. 98%) and evaluation for intra-abdominal bleeding (82% vs. 99%, all p < 0.001). Mortality decreased among seriously injured patients (injury severity score ≥9) at both district (15% before vs. 8% after, p = 0.04) and regional (23% vs. 7%, p = 0.004) hospitals., Conclusions: TIF improved care and lowered mortality at both hospital levels, but KPIs remained lower at district hospitals. Further measures are needed to improve initial trauma care at this level., Clinical Trials Registration: Clinicaltrials.gov (NCT04547192)., (© 2024 International Society of Surgery/Société Internationale de Chirurgie (ISS/SIC).)