Table 3.

Factors associated with co-morbidity (not including burns and injuries) in cases.

Variable	OR	95%CI	p-Value
Univariate associations
Sex (male)	1.0	0.5–2.0	0.935
Age at assessment (years)	0.4	0.2–0.9	0.027
Ethnic group (not Chagga)	0.9	0.4–2.1	0.798
Parents resident at home
Both	1.0	–	–
One	1.6	0.7–3.0	0.311
None	1.5	0.5–4.4	0.498
Education of head of house
None	1.0	–	–
Primary	0.3	0.03–2.6	0.265
Secondary	0.2	0.02–2.3	0.208
History of status (present)	0.7	0.3–1.6	0.385
Age at onset (3 years or less)	3.4	1.6–7.4	0.002
Recurrent seizures (present)	3.8	1.7–8.6	0.001
More than one seizure type (present)	2.0	0.6–6.9	0.255
Causal (structural)	5.3	2.2–12	<0.001
Abnormal EEG	4.7	2.0–11	<0.001
Abnormal CT scan	2.9	1.0–8.1	0.044
Multivariable logistic regression model
Age at assessment (years)	0.9	0.3–2.4	0.777
Age at onset (3 years or less)	3.1	1.2–8.5	0.024
Recurrent seizures (present)	2.5	0.9–7.0	0.094
Causal (structural)	4.5	1.4–12.6	0.013
Abnormal EEG	4.1	1.4–12.5	0.012
Abnormal CT scan	2.0	0.6–6.6	0.277