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. Author manuscript; available in PMC: 2018 Jul 16.
Published in final edited form as: Health Econ. 2014 Mar 10;24(5):566–582. doi: 10.1002/hec.3045

Table 9.

P-values for Ohio Synthetic Control Tests

Post-treatment MSPE Post/pre-treatment MSPE ratio
BMI
1993 only 0.06* 0.34
1993 & 1994 0.16 0.35

Overweight
1993 only 0.09* 0.28
1993 & 1994 0.19 0.26

Obese
1993 only 0.69 0.88
1993 & 1994 0.48 0.84

Notes: P-values are calculated by ordering the mean squared prediction error (ratio) and calculating the proportion of placebo values that are greater than or equal to the treated value.