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. Author manuscript; available in PMC: 2019 Nov 1.
Published in final edited form as: J Pain. 2018 Jun 8;19(11):1342ā€“1351. doi: 10.1016/j.jpain.2018.05.009

Figure 1: Sequential mediation model for the effects of ethnicity on pain.

Figure 1:

Indirect effect of ethnicity on pain through negative cognitions (about sleep or pain) = a1b1

Indirect effect of ethnicity on pain through insomnia = a2b2

Indirect effect of ethnicity on pain through sequential negative cognitions and insomnia = a1 d21 b2

Direct effect of ethnicity on pain = cā€™