. Measuring missed nursing care during the Covid-19 pandemic: methodological reflections. Missed care phenomenon has demonstrated an increasingly interest of the researchers over the years. Even during the pandemic period, many studies have been published with the aim of describing missed care during this healthcare emergency. The comparative studies (Covid-19 versus non-Covid-19) were innovative; however, no important differences have emerged. On the other hand, many studies have been published with a descriptive intent, also in this case without highlighting substantial differences as compared to the pre-pandemic period. These findings bring out a series of methodological reflections, which should be considered to advance research in this field.