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. Author manuscript; available in PMC: 2018 Mar 9.
Published in final edited form as: Am Econ J Econ Policy. 2016 Aug;8(3):39–68. doi: 10.1257/pol.20120298

Table 2. Mammography Insurance Mandates Increased Past Year Mammography.

BRFSS 1987–2000, Adult Women 25–74

(1) (2) (3) (4)
Model is Inline graphic State and year fixed effects (1) + linear state trends (2) + quadratic state trends DDD
Mandate specification is ↓
Scaled Mandate Specification
[Annual=1; Biennial=.5; Baseline=.2] 0.050*** (0.013) 0.050*** (0.013) 0.054*** (0.014) 0.010 (0.007)
Adjusted R squared 0.21 0.21 0.21 0.22

Any Mandate Specification
Treated by any mammography mandate 0.037*** (0.007) 0.037*** (0.007) 0.040*** (0.007) 0.005 (0.007)
Adjusted R squared 0.21 0.21 0.21 0.22

Expanded Mandate Specification
Treated by mandate for baseline mammogram 0.005 (0.008) 0.003 (0.008) 0.006 (0.007) −0.015* (0.009)
Treated by mandate for biennial mammogram 0.035*** (0.009) 0.035*** (0.009) 0.038*** (0.009) 0.011 (0.012)
Treated by mandate for annual mammogram 0.050*** (0.012) 0.050*** (0.012) 0.055*** (0.012) 0.009 (0.007)
Adjusted R squared 0.21 0.21 0.21 0.22

Notes: Each panel of each column shows the results from a separate regression model. Sample size for all models is 693,154. The dependent variable in all models is had a mammogram in the past year. Additional controls in all models include: five-year age group dummies; Pap test mandates; state NBCCEDP implementation; laws mandating access to OB/GYNs; Medicare coverage of Pap tests and mammograms for women age 65 and older; race/ethnicity; education; marital status; share of women 15–44 with private health insurance; share of women who work or who have a husband who works at a firm with 24 or fewer employees, 25–99 employees or 100 or more employees; the unemployment rate; welfare reform; the level of HMO penetration (as a share of the population); the number of obstetric beds per 100 women 15–44; the eligibility threshold for Medicaid eligibility for a pregnant woman in the state as a share of the FPL; share urban; share black; share Hispanic; and state, year, and month of interview fixed effects. Models in column 2 add linear state trends. Models in column 3 add quadratic state trends. Models in column 4 replace the trends and state by year controls with state by age group, year by age group, and state by year fixed effects.

*

significant at 10%;

**

significant at 5%;

***

significant at 1%.

Standard errors throughout are clustered at the state level and estimates are weighted.