ABSTRACT
OBJECTIVE: To determine the prevalence of nocturnal polyuria (NP) in patients with spinal cord injury (SCI) during three different particular phases, and investigate the impact of injury level and injury type on the prevalence of NP. DESIGN: A cross-sectional study. SETTING: Neurogenic Bladder Study Group from six different rehabilitation centers across the country. PARTICIPANTS: 40 patients with SCI. OUTCOME MEASURES: Patients were divided into three groups according to mobilization phase; 1st group included patients confined to bed (n = 14), 2nd group included patients sitting on a wheelchair (n = 19) and 3rd group included patients standing with an assistive ambulation device (n = 7). NP was assessed by nocturnal polyuria index (NPi) and nocturnal urine production (NUP) indexes. RESULTS: No significant difference was found between the groups (P = 0.312 for NPi and P = 0.763 for NUP) in terms of the presence of NP according to their mobilization phase. The night and 24-hour urine volumes showed no significant difference between the groups (P = 0.907 and P = 0.395 respectively). The NPi and NUP values did not show a significant difference between male and female patients (P = 0.826, P = 0.364 respectively), patients with the injury level of ≥T6 and
