Opinion leaders and changes over time: a survey.
Opinion leaders and changes over time: a survey.
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DOI：
10.1186/1748-5908-6-117
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发表时间：
2011-10-11
期刊：
影响因子：
--
通讯作者：
Grimshaw J
中科院分区：
文献类型：
--
作者：
Doumit G;Wright FC;Graham ID;Smith A;Grimshaw J
意见领袖是传播新知识、影响医生执业行为的一种方式。本研究探讨了意见领袖随时间的稳定性，意见领袖是多态的（即影响多个实践领域）还是单态的（即影响一个实践领域），以及意见领袖在其本地网络中的覆盖范围。我们调查了安大略省的外科医生和病理学家以确定2003年和2005年结肠直肠癌的意见领袖以及2005年乳腺癌的意见领袖。我们探讨了2003年确定的结直肠癌意见领袖是否在2005年被重新确定。我们研究了意见领袖是否被认为是多态的（2005年被提名为结肠直肠癌和乳腺癌的意见领袖）还是单态的（2005年仅因一种情况被提名）。社会网络地图被用来确定确定意见领袖的本地同事的数量。外科医生的应答率分别为41%（2003年）和40%（2005年）；病理学家的应答率分别为42%（2003年）和37%（2005年）。2003年确定的结直肠癌外科意见领袖中有4人（25%）在2005年被重新确定。2003年和2005年都没有发现结直肠癌的病理学意见领袖。在2005年的调查中，只有29%的外科意见领袖和17%的病理意见领袖被认为对结直肠癌和乳腺癌都有影响。社会网络地图显示，只有有限数量的普通外科医生（12%）或病理学家（7%）与已确定的意见领袖的社会网络有联系。在这项研究中确定的意见领袖在两年的时间内并不稳定，通常表现为单一性，专业领域划分明确，影响范围有限。这些发现可能会限制常规使用意见领袖影响实践的可行性。
Opinion leaders represent one way to disseminate new knowledge and influence the practice behaviors of physicians. This study explored the stability of opinion leaders over time, whether opinion leaders were polymorphic (i.e., influencing multiple practice areas) or monomorphic (i.e., influencing one practice area), and reach of opinion leaders in their local network. We surveyed surgeons and pathologists in Ontario to identify opinion leaders for colorectal cancer in 2003 and 2005 and to identify opinion leaders for breast cancer in 2005. We explored whether opinion leaders for colorectal cancer identified in 2003 were re-identified in 2005. We examined whether opinion leaders were considered polymorphic (nominated in 2005 as opinion leaders for both colorectal and breast cancer) or monomorphic (nominated in 2005 for only one condition). Social-network mapping was used to identify the number of local colleagues identifying opinion leaders. Response rates for surgeons were 41% (2003) and 40% (2005); response rates for pathologists were 42% (2003) and 37% (2005). Four (25%) of the surgical opinion leaders identified in 2003 for colorectal cancer were re-identified in 2005. No pathology opinion leaders for colorectal cancer were identified in both 2003 and 2005. Only 29% of surgical opinion leaders and 17% of pathology opinion leaders identified in the 2005 survey were considered influential for both colorectal cancer and breast cancer. Social-network mapping revealed that only a limited number of general surgeons (12%) or pathologists (7%) were connected to the social networks of identified opinion leaders. Opinion leaders identified in this study were not stable over a two-year time period and generally appear to be monomorphic, with clearly demarcated areas of expertise and limited spheres of influence. These findings may limit the practicability of routinely using opinion leaders to influence practice.
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DOI：
10.1002/chp.1340240405
发表时间：
2004-01-01
期刊：
The Journal of continuing education in the health professions
影响因子：
--
作者：
Wright, Frances C;Ryan, David P;Smith, Andrew J
通讯作者：
Smith, Andrew J
影响因子：
5.4
作者：
Locock, L;Dopson, S;Gabbay, J
通讯作者：
Gabbay, J
DOI：
10.1002/chp.1340220305
发表时间：
2002-01-01
期刊：
The Journal of continuing education in the health professions
影响因子：
--
作者：
Ryan, David Patrick;Marlow, Bernard;Fisher, Rory
通讯作者：
Fisher, Rory
影响因子：
5.4
作者：
West, E;Barron, DN;Newton, JN
通讯作者：
Newton, JN
影响因子：
2.8
作者：
Wright, FC;Law, CHL;Smith, AJ
通讯作者：
Smith, AJ