Table 2

Five year crude and age standardised incidence (%) of cataract surgery in right eyes of participants attending the Blue Mountains Eye Study (BMES) and the Beaver Dam Eye Study (BDES) by baseline cataract type

5 Year cataract surgery incidence
BMES
Cataract typeStatusEyes at riskCrude (%) (95% CI)Standardised* (%)BDES (%)
*BMES data age standardised to BDES population.
Only corticalabsent12001.1 (0.5 to 1.7)1.51.3
present1407.1 (2.8 to 11.5)6.79.0
Any corticalabsent19013.0 (2.2 to 3.7)3.53.1
present27613.0 (9.1 to 17.0)10.117.2
Only nuclearabsent12001.1 (0.5 to 1.7)1.51.3
present1808.9 (4.7 to 13.1)5.69.0
Any Nuclearabsent13881.9 (1.2 to 2.7)2.42.6
present23514.0 (9.6 to 18.5)8.932.0
Only PSCabsent12001.1 (0.5 to 1.7)1.51.3
present3611.1 (0.3 to 21.9)13.716.0
Any PSCabsent21073.7 (2.9 to 4.5)3.93.4
present7021.4 (11.6 to 31.3)16.428.0