Health symptoms in individuals with and without post-covid in the Dutch general population

Abstract Background Health symptoms, often non-specific in nature such as headache and sleep problems, are more prevalent in the aftermath of disasters. Relatively little research focused on non-specific symptoms in the context of the COVID-19 pandemic, including those with post-covid conditions. The aim of this study was to assess the symptomatic profile of people with post-covid conditions, and to assess differences in health symptoms between non-infected individuals, infected individuals, and individuals with post-covid. Methods A nation-wide cross-sectional health survey performed in 2022 was combined with routine primary care electronic health records (EHRs). Prevalence of individual symptoms was analyzed, as well as symptom scores for number, duration, and severity of symptoms. The total survey sample consisted of 315,586 individuals. The EHR sample consisted of 29,797 individuals with matched survey data. Both samples were divided into three groups: non-infected, infected, and post-covid. Results Survey participants with post-covid experienced significantly (CI 99%) more (incidence risk ratio (IRR) 1.55), longer lasting (IRR 1.87), and more severe self-reported symptoms (IRR 1.95) compared to non-infected individuals. For infected compared to non-infected survey participants, there were hardly differences in symptom scores. The most distinct differences in individual symptoms were observed for loss of smell or taste, fatigue, and respiratory problems. Based on EHR data, the post-covid group is at significantly higher risk of experiencing fatigue, shortness of breath, headache, sleep problems, and dizziness. Conclusions Individuals suffering from post-covid are at the highest risk of experiencing health symptoms, both based on self-reported symptoms as well as based on EHRs. The infected group generally experienced more self-reported symptoms than the non-infected, but on average, they experienced them at a shorter duration, and they also reported them to be less severe. Key messages • Health symptom prevalence is higher in individuals with post-covid in the Netherlands. • This effect is confirmed in self-reported health surveys as well as in primary care registries.