Research Article

Is Dietary Milk Intake Associated with Cataract Extraction History in Older Adults? An Analysis from the US Population

Table 2

Summary statistics of milk consumption indicators, including usual daily intake amounts (in cup equivalents) of milk and total dairy products, and the estimated level of lifelong milk exposure by participants of 24 h dietary survey.

TotalPositive cataract extraction history (% within-group)Negative cataract extraction history (% within-group)Univariate value

Current total milk intake (cup equivalents/day), mean ± SD0.91 ± 1.140.88 ± 0.950.92 ± 1.170.336

Current total dairy intake (cup equivalents/day), mean ± SD1.43 ± 1.401.26 ± 1.131.46 ± 1.44<0.001

Early-life regular daily milk drinking (%)
 Self-reported as never a regular milk drinker20.322.020.10
 Variable (sometimes daily)35.132.835.600.224
 Always-regular daily milk drinker44.545.244.40

Estimated lifelong milk exposure (%)
 Low7.96.58.10.543
 Below average20.321.220.2
 Average29.329.229.3
 Above average25.425.325.4
 High17.117.817.0

Self-perceived consistency (≥5/week) of milk drinking throughout life (%)
 Yes45.445.345.40.476
 Sometimes but not always34.433.034.6
 Never20.221.720.0