Table 3. General Characteristics of the Study Population (n = 570) .

Characteristics	Number	Percent	95% CI
Agea
Less than 40 years	275	48.2	44.1-52.4
40-59 years	224	39.3	35.3-43.4
60 years or older	71	12.5	9.9-15.5
Gender
Male	498	87.4	84.4-90.0
Female	72	12.6	10.0-15.6
Education of household head
No formal education	106	18.6	15.5-22.0
Up to secondary level (grade 1-10)	263	46.1	42.0-50.3
Post-secondary education (>grade 10)	201	35.3	31.3-39.3
Ethnicity
Privileged ethnic group	320	56.1	52.0-60.3
Underprivileged ethnic group	250	43.9	39.7-48.0
Household sizeb
Five or less members	424	74.4	70.6-77.9
More than 5 members	146	25.6	22.1-29.4
Family type
Nuclear	312	54.7	50.5-58.9
Joint or extended	258	45.3	41.1-49.5
Presence of children aged 0-5 years
None	398	69.8	65.9-73.6
At least 1 child	172	30.2	26.4-34.1
Presence of elderly above 60 years
None	344	60.4	56.2-64.4
At least one elderly	226	39.6	35.6-43.8
Illness experience (in past 3 months)
None	322	56.5	52.3-60.6
At least one member	248	43.5	39.4-47.7
Presence of chronic illness
None	364	63.9	59.8-67.8
At least one member	206	36.1	32.2-40.2
Perceived health status of family
Good	275	48.2	44.1-52.4
Average	218	38.2	34.2-42.4
Poor	77	13.5	10.8-16.6

^aMean ± standard deviation [SD] = 41.8 ± 13.5.

^bMean ± SD = 4.8 ± 1.6.