Okawa, Masako

Psychometric assessment of subjective sleep quality using the Japanese version of the Pittsburgh Sleep Quality Index (PSQI-J) in psychiatric disordered and control subjects

Doi, Y., Minowa, M., Uchiyama, M., Okawa, M., Kim, K., Shibui, K., & Kamei, Y. (2000) · Psychiatry Research

Sleep and related disordersAnxiety, Depression, Psychometrics, Treatment, Cognitive Processes

Cited by 992

An epidemiological study of insomnia among the Japanese general population

Kim, K., Uchiyama, M., Okawa, M., Liu, X., & Ogihara, R. (2000) · Sleep

Sleep and related disordersObstructive Sleep Apnea Research

Cited by 524

Sleep loss and daytime sleepiness in the general adult population of Japan

Liu, X., Uchiyama, M., Kim, K., Okawa, M., Shibui, K., Kudo, Y., Doi, Y., Minowa, M., & Ogihara, R. (2000) · Psychiatry Research

Sleep and related disordersSleep and Work-Related Fatigue

Cited by 278

Diminished Melatonin Secretion in the Elderly Caused by Insufficient Environmental Illumination1

Mishima, K., Okawa, M., Shimizu, T., & Hishikawa, Y. (2001) · The Journal of Clinical Endocrinology & Metabolism

Circadian rhythm and melatoninSleep and related disorders

Cited by 218

Sleep and mood disorders

Benca, R. M., Okawa, M., Uchiyama, M., Ozaki, S., Nakajima, T., Shibui, K., & Obermeyer, W. H. (1997) · Sleep Medicine Reviews

Sleep and related disordersSleep and Wakefulness Research

Cited by 165

Effects of nocturnal bright light on saliva melatonin, core body temperature and sleep propensity rhythms in human subjects

Kubota, T., Uchiyama, M., Suzuki, H., Shibui, K., Kim, K., Tan, X., Tagaya, H., Okawa, M., & Inoué, S. (2002) · Neuroscience Research

Circadian rhythm and melatoninSleep and Work-Related Fatigue

Cited by 80

The relation between negative emotional suppression and emotional distress in breast cancer diagnosis and treatment

Iwamitsu, Y., Shimoda, K., Abe, H., Tani, T., Okawa, M., & Buck, R. (2005) · Health Communication

Cancer survivorship and carePatient-Provider Communication in Healthcare

Cited by 76

Twenty‐four hour profiles of four hormones under constant routine

UCHIYAMA, M., ISHIBASHI, K., ENOMOTO, T., NAKAJIMA, T., SHIBUI, K., HIROKAWA, G., & OKAWA, M. (1998) · Psychiatry and Clinical Neurosciences

Circadian rhythm and melatoninSleep and Work-Related Fatigue

Cited by 23