新西兰的一项研究发现，仅依靠医院记录会导致患有多重慢性病的人数统计严重不足1。该研究检查了374,071名成人的健康记录，发现使用医院记录单独识别时，患有两个或以上长期条件的成人占比为14%，但当纳入全科医生记录后，这一比例上升至31%1。这意味着医院记录遗漏了超过一半患有多重长期条件的患者，其中62,453人只有在加入全科医生数据后才被识别出来1。
研究来自奥克兰地区ProCare初级卫生组织1，揭示了现有数据收集方式的重大缺陷。医院记录对不同群体的低估程度存在差异，女性的多重慢性病被低估的幅度大于男性，特别是在55至84岁年龄段差异最为显著1。数据显示，65至74岁人群中超过60%患有至少两种长期条件，而75至84岁人群中这一比例升至近80%1。
鉴于新西兰超过80%的医疗成本用于照顾长期或慢性病患者1，研究人员强调整合全科医生和医院数据对医疗规划和资源配置至关重要。
A new analysis from New Zealand has exposed a significant gap in how the country identifies patients with multiple long-term health conditions. Research examining health records of 374,071 adults from the ProCare primary health organization in the Auckland region found that relying solely on hospital data vastly underestimates the true prevalence of multimorbidity.1
When researchers used only hospital records, they identified 14 percent of adults as having two or more chronic conditions.1 However, when primary care records were integrated into the analysis, this figure nearly doubled to 31 percent.1 This discrepancy means that more than half of patients living with multiple long-term conditions were not captured by hospital data alone, with 62,453 individuals identified as multimorbid only after general practitioner records were included.1
The underestimation was not uniform across the population. Hospital records showed a greater tendency to miss multiple chronic conditions in women compared to men, with the largest disparities occurring among those aged 55 to 84 years.1 Age remains a significant factor in multimorbidity rates, with more than 60 percent of people aged 65 to 74 living with at least two long-term conditions, rising to nearly 80 percent among those aged 75 to 84.1 Given that over 80 percent of New Zealand's healthcare spending is devoted to caring for patients with long-term or chronic illnesses, this integration of data sources is critical for effective medical planning and resource allocation.1
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