Sakae Konishi1, Shingo Hatakeyama2, Atsushi Imai1, Mika Kumagai3, Teppei Okamoto1, Kazutaka Okita1, Itsuto Hamano1, Takuma Narita1, Yuta Kojima1, Hiromichi Iwamura1, Hayato Yamamoto1, Tohru Yoneyama4, Takahiro Yoneyama4, Yasuhiro Hashimoto5, Chikara Ohyama1,5. 1. Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. 2. Department of Advanced Blood Purification Therapy, Hirosaki University Graduate School of Medicine, Hirosaki, Japan, shingoh@hirosaki-u.ac.jp. 3. Department of Active Life Promotion Sciences, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. 4. Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. 5. Department of Advanced Blood Purification Therapy, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
Abstract
INTRODUCTION: The causal relationship between sleep disorder and frequency of nocturia remains unclear. METHODS: We longitudinally evaluated sleep disorder and frequency of nocturia in 547 community-dwelling adults between baseline and 5-year follow-up. We included participants ≥50 years old who have no sleep disorder (the Pittsburgh Sleep Quality Index [PSQI] ≥ 5) nor nocturia (≥1). For 5 years, we evaluated the temporal changes in sleep disorder and nocturia and the bidirectional relationships between sleep disorder and nocturia. RESULTS: Of the 547 participants, we included 268 adults with a median age of 61 years in this study. Median PSQI and nocturia were significantly increased for 5 years from 2 to 3 and from 1 to 2, respectively. New onset of sleep disorder (PSQI > 5) and nocturia >1 was observed in 42 (16%) and 137 (51%) participants, respectively. The cross-lagged panel analysis showed that the path coefficient from PSQI to nocturia (β = 0.22, p = 0.031) was significantly higher than that from nocturia to PSQI (β = 0.02, p = 0.941). CONCLUSIONS: Our longitudinal study showed the effect of sleep disorder on nocturia was significant, although nocturia may not significantly worsen sleep disorder in community-dwelling adults.
INTRODUCTION: The causal relationship between sleep disorder and frequency of nocturia remains unclear. METHODS: We longitudinally evaluated sleep disorder and frequency of nocturia in 547 community-dwelling adults between baseline and 5-year follow-up. We included participants ≥50 years old who have no sleep disorder (the Pittsburgh Sleep Quality Index [PSQI] ≥ 5) nor nocturia (≥1). For 5 years, we evaluated the temporal changes in sleep disorder and nocturia and the bidirectional relationships between sleep disorder and nocturia. RESULTS: Of the 547 participants, we included 268 adults with a median age of 61 years in this study. Median PSQI and nocturia were significantly increased for 5 years from 2 to 3 and from 1 to 2, respectively. New onset of sleep disorder (PSQI > 5) and nocturia >1 was observed in 42 (16%) and 137 (51%) participants, respectively. The cross-lagged panel analysis showed that the path coefficient from PSQI to nocturia (β = 0.22, p = 0.031) was significantly higher than that from nocturia to PSQI (β = 0.02, p = 0.941). CONCLUSIONS: Our longitudinal study showed the effect of sleep disorder on nocturia was significant, although nocturia may not significantly worsen sleep disorder in community-dwelling adults.