Table 1 Prevalence of cataract surgery by age and sex in the Singapore Malay Eye Study
SurgeryAll personsMenWomen
Nn (%)Nn (%)Nn (%)
Any cataract surgery*
    40–49 years8092 (0.2)3791 (0.3)4301 (0.2)
    50–59 years95024 (2.5)42611 (2.6)52413 (2.5)
    60–69 years77589 (11.5)37545 (12.0)40044 (11.0)
    70–80 years724169 (23.3)38991 (23.4)33578 (23.3)
    p Value for trend<0.001<0.001<0.001
    Crude prevalence3258284 (8.7)1569148 (9.4)1689136 (8.1)
    Adjusted prevalence4.7 (4.2 to 5.4)†4.8 (4.0 to 5.9)‡4.6 (3.9 to 5.7)‡
Bilateral cataract surgery§
    40–49 years8091 (0.1)3791 (0.3)4300 (0.0)
    50–59 years95012 (1.3)4265 (1.2)5247 (1.3)
    60–69 years77446 (5.9)37418 (4.8)40028 (7.0)
    70–80 years72495 (13.1)38954 (13.9)33541 (12.2)
    p Value for trend<0.001<0.001<0.001
    Crude prevalence3257154 (4.7)156878 (5.0)168976 (4.5)
    Adjusted prevalence2.5 (2.1 to 3.1)†2.5 (1.9 to 3.3)‡2.6 (2.0 to 3.4)‡

  • *Any cataract surgery defined as lens extraction of either or both eyes.

  • †Age- and sex-adjusted to the Malay adult population from the 2000 Singapore census, 95% CI.

  • ‡Age-adjusted to the Malay adult population from the 2000 Singapore census, 95% CI.

  • §Bilateral cataract surgery defined as lens extraction of both eyes.

  • N, number at risk; n, number of subjects.