| Total | prHD | HD | |
| Sample size | N=225 | N=190 (84%) | N=35 (16%) |
| Male gender | N=98 (44%) | N=80 (42%) | N=18 (51%) |
| Age | 44.4 (18-81) | 42.2 (18-77) | 49.9 (25-81) |
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