Categorization of Primary Research PHR PubMed Citations
| Category | # of References | % |
| PHR Function Evaluation | 10 (12 14 15 17 36 39 40 52 53 54 55 59) | 8% |
| PHR Adoption and Attitudes | 13 (18 19 22 25 33 35 36 37 38 39 40 41 43 45) | 19% |
| PHR Privacy and Security | 0 | 0% |
| PHR Architecture | 1 (48) | 1% |









