When Dr. Jung Yin Tsang and her team at The University of Manchester started pulling together research on digital health tools, they had no idea they would end up reviewing evidence from 74 clinical trials spanning 23 years. The resulting study, published in the journal BMC Medicine, is now the largest review of its kind — and its findings are hard to ignore.
According to the research, digital tools used in healthcare settings can slash medication errors by nearly half. Specifically, the review found a 46% improvement in medication safety compared to usual care. High-risk prescribing and dosing mistakes — the kind that can land patients in the hospital — dropped significantly when clinics used automated systems to catch errors before they happened.
The benefits went beyond just pills. Digital tools also improved non-medication safety processes by 77%, helping doctors run diagnostic checks faster and monitor lab results more promptly. Perhaps most importantly, physical patient harm and adverse events dropped by 17%. That means fewer asthma attacks, fewer serious drug reactions, and fewer unnecessary hospital stays.
One of the standout programs highlighted in the study is called PINCER, developed in the UK. PINCER uses electronic health records to flag potentially incorrect prescriptions, giving pharmacists and doctors a second set of digital eyes. The system proved so effective that it inspired another tool: the SMASH dashboard, created by researchers from NIHR PSRC: Greater Manchester alongside NHS partners and industry. In Salford, this dashboard was tested across 43 medical practices covering more than 235,000 patients. Within just 12 months, hazardous prescribing fell by 40%.
The study also found that tools with patient-facing features — like automatic text message reminders or online patient portals — made people nearly three times more likely to get timely checkups and follow-up care. But the researchers were careful to note that technology alone is not a magic fix. More than 40% of the studies they reviewed ran into implementation barriers, including "alert fatigue," where clinicians become so bombarded with computer pop-ups that they start ignoring them. The best results came from digital systems that fit naturally into doctors' existing workflows and were backed by proper training and team support.
Dr. Jung Yin Tsang said the future of safer healthcare will not be built on software alone, but on how well digital tools work alongside patients, clinicians, pharmacists, and care teams. Professor Mike Lewis, NIHR's scientific director for innovation, echoed that sentiment, calling the evidence a clear sign that well-designed digital technologies can genuinely improve everyday patient safety.
For the millions of patients treated in the NHS each year, these findings suggest that a more connected, smarter approach to healthcare technology could mean fewer mistakes, safer medicine, and better outcomes for everyone.