Kidney Transplant Recipient Behavior During the Early COVID-19 Pandemic: A National Survey Study in Norway.

RATIONALE & OBJECTIVE: Studies published from countries with a high prevalence of COVID-19 have found increased incidence and a more severe disease course of coronavirus disease 2019 (COVID-19) in kidney transplant recipients than in the general population. We investigated how the first wave of the COVID-19 pandemic affected the everyday life of kidney transplant recipients in a country with a low infection burden.

STUDY DESIGN

Prospective case-control study.

SETTING & PARTICIPANTS: All adult kidney transplant recipients in Norway with a functioning graft and listed in the public phone registry (n = 3,060) and a group of randomly recruited individuals >18 years from the general population (n = 20,000) were invited to participate in the study by an SMS text message. In parallel, all kidney transplant recipients in Norway were invited to measure severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) IgG from mid-June to October 2020.

PREDICTORS

The participants were asked to fill out a questionnaire focused on everyday life, travel history, exposure to known COVID-19 cases, and demographics.

ANALYTICAL APPROACH

Groups were compared with independent tests using 2-sided 0.05 significance levels.

RESULTS

A total of 1,007 kidney transplant recipients and 4,409 controls answered the questionnaire. The kidney transplant recipients reported being more concerned about SARS-CoV-2 infection (27%) than the control group (7%; value < 0.001); ie, they behaved more carefully in their everyday life (not going to the grocery store, 5.9% vs 0.9%,  < 0.001; keeping at least 1 meter distance, 16.6% vs 5.8%,  < 0.001). Of the kidney transplant responders, 81% had a SARS-CoV-2 IgG taken; all were negative.

LIMITATIONS

Mortality data is not reliable because of the low number of SARS-CoV-2 infected kidney transplant recipients in Norway. The relatively low questionnaire response rate for kidney transplant recipients is not optimal.

CONCLUSIONS

The questionnaire shows that kidney transplant recipients have behaved more carefully compared with the general population with less social interaction and a very high degree of adherence to governmental advice.