本研究目的在探討乳癌婦女的不確定感及其相關因素。爲橫斷式調查研究，在北部一家區域敎學醫院門診 收案，以立意取樣，共收案100位乳癌婦女。以具良好信效度之Mishel疾病不確定感量表、症狀嚴重程度量表、 社會支持量表、華人身心健康量表，進行結構式問卷調查。結果顯示：乳癌婦女之疾病不確定感平均2.92±0.49 分，屬中高程度，病人的年齡、敎育年數、症狀嚴重程度、身心健康輿疾病不確定感，皆有顯著相關（r=.20, p<.05 ； r=-.27, p<.01 ； r=.28, p<.01 ； r=.20, p<.01)，並進一步以逐步迴歸檢定上述變項對疾病不確定感的預 測力，結果顯示手臂腫脹嚴重程度及敎育年數對疾病不確定感具有預測力（F= 11.69, p<.01 ;F = 8.99, p<.01)， 共可解釋總變異量16%。建議醫護人員應發展減輕手臂腫脹的護理措施，以降低其疾病不確定感，而提升乳癌 婦女的生活品質。

The purposes of this study are to explore the factors associated with uncertainty among breast cancer women. A cross-sectional study design was conducted with a purposive sample size of 100 breast cancer women at a teaching hospital in northern Taiwan by using a structured questionnaire. The instruments used in this study included Mishel Uncertainty in Illness Scale for Adult (MUIS-A), Symptom Severity Scale (SSS), Social Support Scale, the Chinese Health Questionnaire (CHQ-12), and Demographic. Data were analyzed by using descriptive statistics, Spearman's correlation, and Stepwise regression.
The results showed a moderate high level of uncertainty in breast cancer patients (2.92士0.49), and age, education years, symptom severity and physical and mental health were statistically associated with the uncertainty (r=.20, p<.05; r=-.27, p<.01; r=.28, p<.01; r=.20, p<.01). The severity of arm swelling and education years could predict the uncertainty of breast cancer patients (F = 8.99, p<.01; F= 11.69, p< .01). These could explain 16% total variance of uncertainty.
Healthcare providers should be alert to factors contributing to the uncertainty among breast cancer women. Clinical interventions to decrease the severity of arm swelling should be developed to reduce breast cancer women uncertainty and improve breast cancer women，quality of life.