Association between Light Exposure at Night and Nighttime Blood Pressure in the Elderly Independent of Nocturnal Urinary Melatonin Excretion
Obayashi K*, Saeki K, Iwamoto J, Ikada Y, Kurumatani N
Chronobiol Int, 31(6) 779-786, Jun, 2014

Exposure to Light at Night in Home Settings and Risk of Insomnia in General Elderly Population: A Cross-Sectional Study in the HEIJO-KYO Cohort
SLEEP 2014
Obayashi K , Saeki K , Tone N , Nishi T , Miyata K , Otaki N , Kitagawa M , Kurumatani N

Association between Melatonin Secretion and Nocturia in Elderly Individuals: A Cross-Sectional Study of the HEIJO-KYO Cohort
Obayashi K*, Saeki K, Kurumatani N
J Urol, 191(6) 1816-1821, Jun, 2014

Exposure to Evening Light, Sleep Initiation, and Obesity in Elderly Individuals: A Cross-Sectional Study in the HEIJO-KYO Cohort
SLEEP 2014Obayashi K , Saeki K , Tone N , Nishi T , Miyata K , Otaki N , Kitagawa M , Noguchi T , Mochida N , Kurumatani N

Association between Cataract Surgery and Objective Sleep Quality in the Elderly: A Cross-Sectional Study of the HEIJO-KYO Cohort
SLEEP 2014
Miyata K , Nishi T , Obayashi K , Saeki K , Tone N , Kurumatani N , Ogata N

Effect of Exposure to Evening Light on Sleep Initiation in the Elderly: A Longitudinal Analysis for Repeated Measurements in Home Settings
Obayashi K*, Saeki K, Iwamoto J, Okamoto N, Tomioka K, Nezu S, Ikada Y, Kurumatani N
Chronobiol Int, 31(4) 461-467, May, 2014

Independent Associations of Exposure to Evening Light and Nocturnal Urinary Melatonin Excretion with Diabetes in the Elderly
Obayashi K*, Saeki K, Iwamoto J, Ikada Y, Kurumatani N
Chronobiol Int, 31(3) 394-400, Apr, 2014

Health-Related Quality of Life (HRQOL) Decreases Independently of Chronic Conditions and Geriatric Syndromes in Older Adults with Diabetes: the Fujiwara-kyo Study
Nezu S, Okamoto N, Morikawa M, Saeki K, Obayashi K, Tomioka K, Komatsu M, Iwamoto J, Kurumatani N
J Epidemiol, 24(4) 259-266, Apr, 2014

Longitudinal Association of Low Evening indoor Temperatures with Prolonged Sleep Onset Latency in Elderly Individuals: the HEIJO-KYO Study
Annual Scientific Meeting of the Japan Epidemiological Association 2014
Saeki K , Obayashi K , Tone N , Kurumatani N

Association of Indoor Temperature with Circadian Rhythm of Ambulatory Blood Pressure in the Elderly: A Cross-sectional Study of the HEIJO-KYO Cohort
Annual Meeting of Japanese Society for Chronobiology 2013
Saeki K , Obayashi K , Tone N , Miyata K , Iwamoto J , Okamoto N , Tomioka K , Kurumatani N