Table 4.

Results of additional tests (qualitative stool examination, Strongyloides antibodies, skin prick tests, and serum immunoglobulin E (IgE) concentrations) and their association with vernal keratoconjunctivitis^*

Additional tests	%	OR	P value	CI
Helminthes (eggs) in stools	23.1	1.0	0.950	0.6–1.7
Stools positive for specific helminthes (eggs)
Ancylostomidae	9.8	1.3	0.425	0.7–2.5
Trichuris trichiura	5.6	0.7	0.424	0.3–1.8
Ascaris lumbricoides (feconded)	4.0	0.8	0.685	0.3–2.4
Ascaris lumbricoides (feconded)	3.1	0.7	0.650	0.2–2.7
Trichostrongylus	1.7	1.8	0.411	0.4–7.8
Schistosoma mansoni	1.0	0.8	0.795	0.1–6.8
Enterobius vermicularis	0.8	NA	0.247	NA
Taenia	0.2	NA	0.083	NA
Hymenolepis nana	0.2	NA	0.564	NA
Fasciolidae	0.2	NA	0.564	NA
Dicrocoelium dendriticum	0.2	NA	0.564	NA
Positive Strongyloides antibodies	3.3	0.3	0.229	0.04–2.4
Skin prick test-sensitization	43.2	1.2	0.456	0.8–1.8
Specific positive skin prick test
Cockroach	13.6	0.8	0.555	0.4–1.6
Mosquito (Aedes communis)	13.0	1.4	0.222	0.8–2.6
Goat hair	12.1	1.0	0.951	0.5–1.9
Acacia	11.9	0.8	0.529	0.4–1.6
Pig dander	9.6	1.0	0.949	0.5–2.0
Aspergillus	9.6	1.0	0.949	0.5–2.0
D. pteronyssinus	6.4	1.6	0.266	0.7–3.4
Dog hair	4.3	0.8	0.609	0.2–2.3
Cow dander	3.6	0.9	0.899	0.3–2.9
Cow hair	0.9	1.0	0.994	0.1–9.8
Maize corn	0.6	NA	0.003	NA
Johnson grass	0.2	NA	0.082	NA
IgE atopy	47.9	1.3	0.285	0.8–1.9
Specific positive IgE-concentration
Ascaris lumbricoides	39.5	0.8	0.421	0.6–1.3
Sorghum	37.4	1.1	0.560	0.7–1.7
Mosquito (Aedes communis)	34.4	1.4	0.156	0.9–2.1
Timothy-grass	25.8	0.9	0.780	0.6–1.5
Maize corn	25.4	1.0	0.940	0.6–1.6
Acacia	20.3	0.8	0.520	0.5–1.4
Eucalyptus	19.6	0.8	0.320	0.4–1.3

^*OR = odds ratio; P value; CI = confidence interval (95%); NA = not available.