| Level 1: | Pain later = β0i + β1i (Pain) + β2i (HIV-related social support) + β3i(Felt social support) + eti |
| Level 2: | β0i = γ00 + γ01(age) + γ02(race) + γ03(SES) + γ04(sexual orientation) + γ05(between-person variable) + u0i |
| β1i = γ10 + γ11(age) + γ12(race) + γ13(SES) + γ14(sexual orientation) + γ15(between-person variable) + u0i | |
| β2i = γ20 + γ21(age) + γ22(race) + γ23(SES) + γ24(sexual orientation) + γ25(between-person variable) + u0i | |
| β3i = γ30 + γ31(age) + γ32(race) + γ33(SES) + γ34(sexual orientation) + γ35(between-person variable) + u0i |