By analogy to our previous observational studies in oncology and obstetrics on sleep quality and B. pinnatum, the study was designed to include a maximum of 50 patients [26 (link), 27 (link)]. At analysis, one patient had to be excluded due to a double entry in the database. Regarding nocturia, no observational study with B. pinnatum is available on which a power analysis could have been performed. Data were analysed using the IBM SPSS Statistics software for Windows, version 24. Overall, p values were calculated by the student's t-test for paired samples. A p value <0.05 was considered significant. Data are expressed as mean ± standard deviation (SD). The number of valid pairs is indicated if less than 49; missing values were not replaced.
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