Table 2. Least square means and mean difference of change on the physical and mental component summary of the HRQoL for the combined panels analysis (2005–2015) and the significance of the difference from the uni- and multivariate D-I-D analysis.
| Overall Change | Received antidepressant medication | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Yes | No | p-value* | ||||||||
| Year | Baseline | Follow-up | Mean Difference | Baseline | Follow-up | Mean Difference | Baseline | Follow-up | Mean Difference | |
| Univariate | ||||||||||
| PCS | 44.52 | 44.18 | - 0.34 | 43.58 | 43.23 | - 0.35 | 45.72 | 45.38 | - 0.34 | 0.9595 |
| MCS | 42.08 | 43.30 | 1.22 | 41.03 | 42.31 | 1.28 | 43.41 | 44.54 | 1.13 | 0.5284 |
| Multivariate | ||||||||||
| PCS | 44.52 | 44.18 | - 0.34 | 42.50 | 41.85 | - 0.65 | 43.86 | 43.31 | - 0.55 | 0.6405 |
| MCS | 42.08 | 43.30 | 1.22 | 40.32 | 41.50 | 1.18 | 42.99 | 43.92 | 0.93 | 0.3191 |
Results were presented as least square means from baseline and follow-up for both groups and mean difference within each group.
Age, gender, race, ethnicity, marital status, poverty level, and insurance coverage were included in the multivariate analysis to adjust for the effect of these significant factors between the cohort on the outcomes’ variables.
* p-value <0.05 was considered statistically significant and numbers in bold indicate significant results.