Table 4.
Summary of multilevel models predicting daily physical symptoms (N = 3,421)
| Model 1: Main effect of SM status or sexual orientationa | Model 2: Interaction between SM status or sexual orientation and daily stress exposurea | Model 3: Interaction between SM status or sexual orientation and daily stress exposure with all covariatesb | |
|---|---|---|---|
| SM (n = 98) vs. heterosexual (n = 3,323) | |||
| Fixed effects | |||
| Intercept | 0.91 (0.05)*** | 0.92 (0.05)*** | 1.25 (0.17)*** |
| Any stressors (0 = no, 1 = yes) | 0.19 (0.02)*** | 0.19 (0.02)*** | 0.16 (0.02)*** |
| SM status (0 = heterosexual, 1 = SM) | −0.03 (0.15) | −0.07 (0.16) | −0.04 (0.14) |
| Any stressors*SM status | 0.10 (0.12) | 0.18 (0.11) | |
| Variance components | |||
| Between-person (level 2) variance (Intercept) | 1.87 (0.05)*** | 1.87 (0.05)*** | 1.27 (0.04)*** |
| Within-person across days (level-1) variance (Intercept) | 1.27 (0.01)*** | 1.27 (0.01)*** | 1.24 (0.01)*** |
| Any stressors | 0.29 (0.03)*** | 0.29 (0.03)*** | 0.22 (0.03)*** |
| Model fit | |||
| AIC | 84871.3 | 84872.5 | 78024.1 |
| BIC | 84926.5 | 84933.9 | 78139.4 |
| Lesbian/gay (n = 58) and bisexual (n = 40) vs. heterosexual (n = 3,323) | |||
| Fixed effects | |||
| Intercept | 0.91 (0.05)*** | 0.91 (0.05)*** | 1.25 (0.17)*** |
| Any stressors (0 = no, 1 = yes) | 0.19 (0.02)*** | 0.19 (0.02)*** | 0.16 (0.02)*** |
| Sexual orientation | |||
| Lesbian/gay vs. heterosexual | −0.08 (0.19) | −0.09 (0.19) | −0.01 (0.18) |
| Bisexual vs. heterosexual | 0.14 (0.23) | 0.05 (0.24) | −0.08 (0.21) |
| Interactions | |||
| Any stressors* lesbian/gay | 0.05 (0.14) | 0.10 (0.14) | |
| Any stressors*bisexual | 0.26 (0.18) | 0.30 (0.18)† | |
| Variance components | |||
| Between-person (level 2) variance (Intercept) | 1.87 (0.05)*** | 1.87 (0.05)*** | 1.27 (0.04)*** |
| Within-person across days (level-1) variance (Intercept) | 1.27 (0.01)*** | 1.27 (0.01)*** | 1.24 (0.01)*** |
| Any stressors | 0.29 (0.03)*** | 0.29 (0.03)*** | 0.22 (0.03)*** |
| Model fit | |||
| AIC | 84872.8 | 84874.5 | 78027.3 |
| BIC | 84934.2 | 84948.2 | 78154.8 |
| SM females (n = 49) vs. heterosexual females (n = 1,726) | |||
| Fixed effects | |||
| Intercept | 0.95 (0.07)*** | 0.95 (0.07)*** | 1.14 (0.24)*** |
| Any stressors (0 = no, 1 = yes) | 0.16 (0.03)*** | 0.16 (0.03)*** | 0.16 (0.03)*** |
| SM status (0 = heterosexual, 1 = SM) | −0.06 (0.21) | −0.14 (0.22) | −0.06 (0.20) |
| Any stressors*SM status | 0.21 (0.16) | 0.22 (0.16) | |
| Variance components | |||
| Between-person (level 2) variance (Intercept) | 1.81 (0.07)*** | 1.81 (0.07)*** | 1.39 (0.06)*** |
| Within-person across days (level-1) variance (Intercept) | 1.39 (0.02)*** | 1.39 (0.02)*** | 1.40 (0.02)*** |
| Any stressors | 0.19 (0.04)*** | 0.19 (0.04)*** | 0.19 (0.04)*** |
| Model fit | |||
| AIC | 45059.4 | 45059.8 | 44227.9 |
| BIC | 45108.8 | 45114.6 | 44320.9 |
| SM males (n = 49) vs. heterosexual males (n = 1,428) | |||
| Fixed effects | |||
| Intercept | 0.88 (0.07)*** | 0.88 (0.07)*** | 1.66 (0.24)*** |
| Any stressors (0 = no, 1 = yes) | 0.17 (0.03)*** | 0.16 (0.03)*** | 0.16 (0.03)*** |
| SM status (0 = heterosexual, 1 = SM) | 0.18 (0.19) | 0.15 (0.20) | 0.06 (0.19) |
| Any stressors*SM status | 0.06 (0.15) | 0.14 (0.15) | |
| Variance components | |||
| Between-person (level 2) variance (Intercept) | 1.48 (0.06)*** | 1.48 (0.06)*** | 1.10 (0.04)*** |
| Within-person across days (level-1) variance (Intercept) | 1.06 (0.02)*** | 1.06 (0.02)*** | 1.06 (0.02)*** |
| Any stressors | 0.29 (0.04)*** | 0.29 (0.04)*** | 0.25 (0.04)*** |
| Model fit | |||
| AIC | 34775.0 | 34776.9 | 33599.8 |
| BIC | 34822.7 | 34829.8 | 33694.7 |
Note. SM = sexual minority.
a Covariates: duration in the study (day 1 = 1, day 2 = 2, …, day 8 = 8), day of week (Monday = 1, Tuesday = 2, …, Sunday = 7), between-person stress exposure;
b Covariates: duration in the study (day 1 = 1, day 2 = 2, …, day 8 = 8), day of week (Monday = 1, Tuesday = 2, …, Sunday = 7), between-person stress exposure, age (in years), sex (0 = male, 1 = female), race (0 = non-White, 1 = White), Education (0 = high school or less, 1 = some college or more), marital status (0 = other, 1 = married), subjective physical health (0 = poor/ fair, 1 = good/very good/excellent), neuroticism trait (score), and wave of study (MIDUS-R is the reference).
†p < .10, *p < .05, **p < .01, ***p < .001.