Perceived Racial Discrimination, but Not Mistrust of Medical Researchers, Predicts the Heat Pain Tolerance of African Americans With Symptomatic Knee Osteoarthritis
Perceived Racial Discrimination, but Not Mistrust of Medical Researchers, Predicts the Heat Pain Tolerance of African Americans With Symptomatic Knee Osteoarthritis
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DOI：
10.1037/a0031592
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发表时间：
2013-11-01
影响因子：
4.2
通讯作者：
Fillingim, Roger B.
中科院分区：
文献类型：
--
作者：
Goodin, Burel R.;Pham, Quyen T.;Fillingim, Roger B.
目的：研究表明，感知到的种族歧视是非裔美国人临床疼痛严重程度的重要预测因素。目前尚不清楚感知到的种族歧视是否也会改变疼痛刺激的伤害性处理，进而影响临床疼痛的严重程度。这项研究调查了非裔美国人和非西班牙裔白人中感知到的种族歧视与对有害热刺激的反应之间的关联。鉴于其可能影响对有害刺激的反应，还评估了对医学研究人员的不信任。方法：1030 名患有症状性膝骨关节炎的社区老年人（52% 为非裔美国人，48% 为非西班牙裔白人）完成了两次研究。在第一节中，个人提供了人口统计、社会经济、身体和心理健康信息。他们完成了有关终生种族歧视频率和对医学研究人员不信任的调查问卷。在第二阶段中，个体接受了一系列受控热刺激程序以评估热痛敏感性，特别是热痛耐受性。结果：与非西班牙裔白人相比，非裔美国人对热痛更加敏感，并表示更容易感受到种族歧视，对医学研究人员的不信任也更大。更大程度的种族歧视明显预示着非洲裔美国人的热痛耐受性较低，但非西班牙裔白人则不然。对医学研究人员的不信任并不能显着预测两个种族群体的热痛耐受性。结论：这些结果支持了这样的观点，即感知到的种族歧视可能通过疼痛刺激的伤害性处理影响非裔美国人的临床疼痛严重程度。
Objective: Studies have shown that perceived racial discrimination is a significant predictor of clinical pain severity among African Americans. It remains unknown whether perceived racial discrimination also alters the nociceptive processing of painful stimuli, which, in turn, could influence clinical pain severity. This study examined associations between perceived racial discrimination and responses to noxious thermal stimuli among African Americans and non-Hispanic Whites. Mistrust of medical researchers was also assessed given its potential to affect responses to the noxious stimuli. Method: One-hundred and 30 (52% African American, 48% non-Hispanic White) community-dwelling older adults with symptomatic knee osteoarthritis completed two study sessions. In session one, individuals provided demographic, socioeconomic, physical and mental health information. They completed questionnaires related to perceived lifetime frequency of racial discrimination and mistrust of medical researchers. In session two, individuals underwent a series of controlled thermal stimulation procedures to assess heat pain sensitivity, particularly heat pain tolerance. Results: African Americans were more sensitive to heat pain and reported greater perceived racial discrimination as well as greater mistrust of medical researchers compared with non-Hispanic Whites. Greater perceived racial discrimination significantly predicted lower heat pain tolerance for African Americans but not non-Hispanic Whites. Mistrust of medical researchers did not significantly predict heat pain tolerance for either racial group. Conclusion: These results lend support to the idea that perceived racial discrimination may influence the clinical pain severity of African Americans via the nociceptive processing of painful stimuli.