Objectives: To identify risk factors for xerophthalmia in the Republic
of Kiribati. Design: Case-control study. Setting: The Republic of Kir
ibati. Subjects: 666 xerophthalmic preschool children (cases) and 816
children without xerophthalmia (controls) from a population-based samp
le of 4619 children who participated in a xerophthalmia prevalence sur
vey. Main outcome measures: Clinical signs of xerophthalmia (night bli
ndness, Bitot's spots, corneal xerophthalmia and keratomalacia). Resul
ts: Multivariable logistic regression models showed older age [1.35(1.
24, 1.47)] [odds ratio (95% confidence interval)]; male sex [1.32(1.05
, 1.67)]; recent diarrhea [1.45(1.10, 1.89)]; severe [3.82(2.73, 5.35)
], moderate [3.55(2.04, 6.18)], and mild [3.07(2.33, 4.04)] protein-en
ergy malnutrition; current breast-feeding [0.30(0.19,0.46)]; higher fr
equency of consumption of carotenoid-containing fruits and vegetables
[0.93(0.80, 0.96)]; and the presence of a Foundation for the Peoples o
f the South Pacific garden project [0.70(0.52, 0.93)] were each indepe
ndently associated with xerophthalmia. A recent history of measles was
associated with corneal xerophthalmia [7.73(1.78, 33.65)]. Conclusion
s: These data provide further evidence of the relationship between xer
ophthalmia and factors that may be amenable to intervention, and sugge
st that greater availability and consumption of provitamin A carotenoi
ds is associated with decreased risk of xerophthalmia among preschool
children.