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. Author manuscript; available in PMC: 2018 Sep 17.
Published in final edited form as: Am Econ J Econ Policy. 2018 Aug;10(3):122–153. doi: 10.1257/pol.20160355

Table 1.

Baseline beneficiary sample

Mean Std. Dev. 10th pctile 90th pctile
Age 75.6 7.7 67 87
Female indicator 0.65
White indicator 0.95
Annual total spending ($US) 1,910 2,977 76 3,977
Annual out-of-pocket spending ($US) 757 937 27 1,872
Annual claim propensity
 Number of claims 31.2 26.6 3 67
 Number of branded claims 13.7 14.9 0 33
 Number of generic claims 17.5 17.2 1 40
 Share with at least one claim 0.95
 Share with at least one branded claim 0.86
 Share with at least one generic claim 0.90
December claim propensity
 Number of claims 2.71 2.80 0 6
 Number of branded claims 1.10 1.51 0 3
 Number of generic claims 1.61 1.93 0 4
 Share with at least one claim 0.75
 Share with at least one branded claim 0.53
 Share with at least one generic claim 0.63

Table based on our baseline sample described in Section II. The unit of observation is a beneficiary-year. The sample covers 6,520,716 beneficiary-years that represent 2,022,535 unique beneficiaries.