Table 2:
Prevalence of Diagnosed Dementia among Medicare Beneficiaries receiving Eye Care, 2009–2015
| Prevalent Dementia1 N(%) |
Incident Dementia1 N(%) |
Any Dementia N (%) |
No Dementia N(%) |
p-value2 | |
|---|---|---|---|---|---|
| Any Eye Care Provider Visit | 171178(5.0) | 63954(1.9) | 235132(6.8) | 3202832(93.2) | <0.0001 |
| Ophthalmologist Visit | 111529(4.0) | 37089(1.3) | 148618(5.3) | 2634179(94.7) | <0.0001 |
| Cataract Surgery3 | 19378(2.3) | 8418(1.0) | 27796(3.3) | 822351(96.7) | <0.0001 |
1
Prevalent dementia was recorded during the initial 3-year lookback period; incident dementia was a dementia diagnosis that was first recorded during the subsequent follow-up period and prior to first eye care visit during the followup period
2
Chi-square test statistic
3
N = 3,437,964 beneficiaries with any eye care provider visit
4
N = 2,782,797 beneficiaries with ophthalmologist visit
5
Among the subset of beneficiaries seen by an ophthalmologist (necessary for cataract surgery)
6
N = 850,147 beneficiaries with cataract surgery