Table 1.
Difference-in-differences analysis of health insurance for pancreatic cancer patients in the pre- and post-expansion time periods in non-expansion and January 2014 expansion states.
| Non-Expansion States | Expansion States | Unadjusted | Adjusted | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011–12 | 2015–16 | AD | RC (%) | 2011–12 | 2015–16 | AD | RC (%) | DID | p value | DID | p value | |
| All patients (n) | 25,871 | 33,031 | 21,186 | 26,915 | ||||||||
| Insurance Types (%) | ||||||||||||
| Private | 30.16 | 27.95 | −2.21 | −7.32 | 31.32 | 28.53 | −2.79 | −8.91 | −0.58 | 0.30 | −1.12 | 0.03 * |
| Medicare | 58.18 | 61.81 | 3.63 | 6.25 | 59.01 | 61.64 | 2.63 | 4.45 | −1.01 | 0.10 | −0.31 | 0.54 |
| Medicaid | 5.04 | 4.44 | −0.60 | −11.85 | 5.95 | 7.57 | 1.62 | 27.29 | 2.22 | <0.001 * | 2.00 | <0.001 * |
| Other Governmental | 1.91 | 2.13 | 0.22 | 11.41 | 0.96 | 1.22 | 0.27 | 28.00 | 0.05 | 0.75 | 0.06 | 0.72 |
| Uninsured | 4.72 | 3.67 | −1.05 | −22.22 | 2.76 | 1.04 | −1.73 | −62.47 | −0.68 | 0.002 * | −0.64 | 0.004 * |
AD=absolute difference (%); DID=difference-in-differences; RC=relative change (% change between time periods).
*
indicates statistical significance.