TABLE 2—
Mental Health Inpatient Utilization Among Continuously Employed and Insured Workers: 2007–2012
| Yearly Mental Health Inpatient Visits |
||||
| Variable | 2007–2010 Cohort, b (95% CI) | 2007–2012 Cohort, b (95% CI) | 2007–2010 Cohort, With Interactions at High-Layoff Plants,a b (95% CI) | 2007–2012 Cohort, With Interactions at High-Layoff Plants,a b (95% CI) |
| Time trend before 2009 | 0.00056 (−0.00034, 0.00146) | 0.00035 (−0.00047, 0.00117) | 0.00087 (−0.00034, 0.00208) | 0.00051 (−0.00065, 0.00167) |
| Time trend after 2009 | 0.00245* (0.00058, 0.00433) | 0.00036 (−0.00010, 0.00083) | 0.00126 (−0.00100, 0.00351) | 0.00004 (−0.00061, 0.00069) |
| Interaction terms: job security | ||||
| Before 2009 x high layoff | −0.00046 (−0.00170, 0.00078) | −0.00037 (−0.00153, 0.00079) | ||
| After 2009 x high layoff | 0.00215 (−0.00144, 0.00575) | 0.00058 (−0.00026, 0.00143) | ||
| High layoff | 0.00027 (−0.00157, 0.00210) | −0.00032 (−0.00193, 0.00129) | ||
| Unemployment rate | −0.00029* (−0.00054, −0.00005) | −0.00011 (−0.00031, 0.00010) | −0.00031* (−0.00057, −0.00006) | −0.00009 (−0.00028, 0.00011) |
| Constant | 0.00423 (−0.00190, 0.01037) | 0.00082 (−0.00249, 0.00413) | 0.00447 (−0.00181, 0.01074) | 0.00087 (−0.00267, 0.00442) |
| Model comparisons | ||||
| Difference in trend, before vs after recession | 0.00189 | 0.00028 | ||
Note. CI = confidence interval. Analyses were conducted with piecewise regression with a discontinuity in 2009, with fixed effects at the individual level. Models controlled for age squared and age cubed. The 2007–2010 cohort had 46 500 observations for 11 625 individuals; the 2007–2012 cohort had 61 452 observations for 10 242 individuals.
a
A high-layoff plant laid off ≥ 40 employees in 1 day (n = 7). Reference group = all other plants (n = 18).
*P < .05.