Table 2 Ordinary least square regression for private WTP (Log) in different health status
From: Identification determinant factors on willingness to pay for health services in Iran
| Variables | Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | Model 6 |
|---|---|---|---|---|---|---|
| WTP (SE) | WTP (SE) | WTP (SE) | WTP (SE) | WTP (SE) | WTP (SE) | |
| Cons | −8.07b | −5.85b | −2.59b | −1.94b | −1.31b | −.53 |
| (0.82) | (0.75) | (0.56) | (0.65) | (0.40) | (0.45) | |
| Sex (ref = male) | 0.21b | 0.16b | 0.07 | 0.07 | 0.01 | −0.03 |
| (0.06) | (0.05) | (0.04) | (0.04) | (0.03) | (0.03) | |
| Age (ref = less than 35 year) | 0.04 | 0.01 | −0.007 | 0.01 | −0.03 | 0.01 |
| (0.06) | (0.05) | (0.04) | (0.04) | (0.03) | (0.03) | |
| Marital status (ref = single) | 0.10 | 0.09 | 0.02 | 0.02 | 0.004 | −.03 |
| (0.06) | (0.05) | (0.04) | (0.04) | (0.03) | (0.03) | |
| Education (ref = nonacademic) | 0.02 | 0.02 | 0.05 | 0.11a | 0.04 | −0.02 |
| (0.06) | (0.05) | (0.04) | (0.05) | (0.03) | (0.03) | |
| Income | 1.38b | 1.27b | 1.1b | 1.06b | 1.05b | 1.02b |
| (0.04) | (0.04) | (0.03) | (0.03) | (0.02) | (0.02) | |
| R square | 0.82 | 0.83 | 0.87 | 0.82 | 0.92 | 0.90 |