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Table A-13. Imputation for postdoctoral appointees in science, engineering, and health fields, by mechanism of support, citizenship, and type of doctoral degree: 2017

Mechanism of support All doctoral degree types Doctoral degree Professional degree Dual degree Doctoral degree type unknown
Imputation rate (%)
All postdoctoral appointees 3.4 4.3 6.0 8.2 4.6
Fellowships 13.4 5.9 4.9 9.0 49.9
Research grant 9.0 6.5 8.2 7.5 21.0
Traineeship 8.9 9.5 9.7 11.5 8.1
Other support 7.5 7.2 9.7 12.7 16.7
U.S. citizens and permanent residents 7.5 5.0 3.2 4.6 20.6
Foreign nationals with temporary visa 7.1 5.4 11.8 11.1 18.1
Number imputeda
All postdoctoral appointees 2,229 2,037 244 88 540
Fellowships 791 235 36 13 514
Research grant 3,585 1,982 93 34 1,603
Traineeship 334 226 54 10 59
Other support 1,140 775 162 50 411
U.S. citizens and permanent residents 2,249 1,056 79 21 1,247
Foreign nationals with temporary visa 2,445 1,441 190 69 1,050
a This table reports the sum of counts imputed in each of these cells and variables. Because some units report totals without complete details, the sum of the imputed details will often be higher than the related total.
SOURCE: National Science Foundation, National Center for Science and Engineering Statistics, Survey of Graduate Students and Postdoctorates in Science and Engineering, 2017.