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Table A-11. Imputation for postdoctoral appointees in science, engineering, and health fields, by citizenship, ethnicity, race, and sex: 2013
Citizenship, ethnicity, and race Total Male Female
Imputation rate (%)

    All postdoctoral appointees
4.0 6.4 6.0
        U.S. citizens and permanent residents
            Hispanic or Latino
6.2 7.1 5.2
            Not Hispanic or Latino
                American Indian or Alaska Native
19.0 8.0 26.8
                Asian 8.6 9.0 7.9
                Black or African American 7.4 7.2 7.6
                Native Hawaiian or Other Pacific Islander 3.9 8.7 1.9
                White 6.5 6.6 6.3
                More than one race 6.5 7.2 4.8
            Unknown ethnicity and race 29.6 32.1 25.8

        Temporary visa holders
7.6 7.5 7.8

Number imputeda

    All postdoctoral appointees
2,461 2,407 1,467
        U.S. citizens and permanent residents
            Hispanic or Latino
92 51 40
            Not Hispanic or Latino
                American Indian or Alaska Native
23 4 19
                Asian 466 272 190
                Black or African American 84 37 47
                Native Hawaiian or Other Pacific Islander 3 2 1
                White 1,123 628 490
                More than one race 17 10 6
            Unknown ethnicity and race 1,087 715 373

        Temporary visa holders
2,469 1,595 864

a This table reports sum of counts imputed in each of these cells/variables. Because some units report totals without complete details, sum of imputed details will often be higher than related total.
SOURCE: National Science Foundation, National Center for Science and Engineering Statistics, NSF-NIH Survey of Graduate Students and Postdoctorates in Science and Engineering, 2013.
Data from survey cycle Fall 2013, as of 8 August 2014.