Table 1.
Definition and descriptive statistics of independent variables
| Variables | Definition |
Percentage (%) or Mean |
||||
|---|---|---|---|---|---|---|
| 2004 | 2005 | 2006 | 2007 | Average | ||
| n a |
No. of individuals |
2878 |
4360 |
5725 |
5517 |
- |
| Health Status |
|
|
|
|
|
|
| Sick |
1 if sick b; 0 otherwise* |
17.9 |
19.2 |
19.4 |
19.3 |
19.1 |
| Age (years) |
|
|
|
|
|
|
| ≤ 15 |
Age 15 years or less |
45.4 |
42.5 |
40.5 |
38.4 |
41.2 |
| 16-59 |
Age between 16–59 years* |
47.6 |
50.8 |
52.2 |
53.7 |
51.6 |
| 60+ |
Age 60 years or older |
6.9 |
6.7 |
7.4 |
7.9 |
7.3 |
| Education |
|
|
|
|
|
|
| Literate |
1 if can read/write; 0 otherwise* |
31.7 |
37.2 |
40.8 |
43.8 |
39.4 |
| Subsidized c |
|
|
|
|
|
|
| Subsidy |
1 if given subsidy in insurance premium; 0 otherwise* |
- |
- |
- |
18.3 |
5.3 |
| Household size |
|
|
|
|
|
|
| Size |
Number of individuals in the household |
11.9 |
11.0 |
12.1 |
12.4 |
11.9 |
| SES |
|
|
|
|
|
|
| LowSES |
Household SES below 33.33th percentile* |
34.0 |
32.1 |
33.4 |
33.3 |
33.1 |
| MidSES |
Household SES between 33.33th and 66.67th percentile |
33.5 |
32.9 |
33.2 |
33.4 |
33.2 |
| HighSES |
Household SES above 66.67th percentile |
32.5 |
35.0 |
33.3 |
33.3 |
33.6 |
| Year |
|
|
|
|
|
|
| 2004 |
Year 2004* |
- |
- |
- |
- |
15.6 |
| 2005 |
Year 2005 |
- |
- |
- |
- |
23.6 |
| 2006 |
Year 2006 |
- |
- |
- |
- |
31.0 |
| 2007 | Year 2007 | - | - | - | - | 29.8 |
a Insurance was offered in a phased manner. From 2006 everyone was eligible for insurance.
b Individual was considered sick if (s)he had an illness for at least 3 months at the time of the survey.
c Subsidy was offered only in year 2007.
* Reference category for multivariate analysis.