Fifty-three percent of MyPHRSC registrants were male and 47 percent were female. As of 2007, 41 percent of Medicare enrollees in South Carolina were men and 59 percent women, suggesting that men were disproportionately likely to register for MyPHRSC. A chi-square goodness-of-fit test confirms that this gender composition of registrants is significantly different than what would be expected in South Carolina (p<0.01).
The age range of registrants was 26 years to 99 years of age, with the majority of beneficiaries between 65 years and 74 years of age (Figure 2). Twelve percent of registrants were under the age of 65, and 26 percent are over age 75. Individuals aged 65-74 were more likely to register for MyPHRSC and individuals under 65 or over 75 were less likely to register for the PHR than would have been expected from the age distribution of Medicare beneficiaries in South Carolina in 2007. A chi-square goodness-of-fit test confirms that the ages of MyPHRSC registrants differ significantly from those of the South Carolina Medicare population.
Figure 2. Frequencies Of MyPHRSC Registrants by Age Compared with All South Carolina Medicare Beneficiaries.
Figure 2 shows he age range of registrants was 26 years to 99 years of age, with the majority of beneficiaries between 65 years and 74 years of age