1[5]Southwell M T, Wistow B A.Sleep in hospitals at night:Are patient s 'needs being met?[J].Journal of Advanced Nursing,1995,21:1101～1109.
2[6]Sheely L C.Sleep disturbances in hospitalized patients with cance r[J].Oncology Nursing Forum,1996,23(1):109～111.
3[7]Hogstel M O.Nursing care of the older adult[M].3rd ed.Delmar Pu blishers,1994.1.
4[8]Miller A C.Nursing care of older adults:theory and practice [M].3rd ed.Philadelphia J B.Lippincott,1999.399～419.
5[9]Colling J.Sleep disturbances in aging:A theoretic and empiric anal ysis[J].Advances in Nursing Sciences,1983,6:36 ～44.
6[10]Closs S J.Assessment of sleep in hospital patients:A review of me thods[J].Journal of Advanced Nursing,1988,13:501～510.
7[11]Zepelin H,Mcdonald C S,Zammit G K.Effects of age on auditory awak ening thresholds[J].Journal of Gerontology,1984,39:294～300.
8[12]Simpson T,Lee E R,Cameron C.Patients'perceptions of environmental factors that disturb sleep after cardiac surgery[J].American Journal of Crit ical Care,1996,5:173～181.
9[13]Redeker N S,Tamburri L,Howland C L.Prehospital correlates of slee p in patients hospitalized with cardiac disease[J].Research in Nursing and He alth,1998,21:27～37.
10[1]Edell-Gustafsson U,Aren C,Hamrin E.et al.Nurses'no tes on sleep pat terns in patients undergoing coronary artery bypass surgery:a retrospective eval uation of patient records[J].Journal of Advanced Nursing,1994,20:331～336.
