Table 6 Estimation of province self-employment rate and self-employment: First stage
From: Effect of self-employment on the sub-health status and chronic disease of rural migrants in China
| Â | Sub-health status | Chronic disease | ||
|---|---|---|---|---|
Self-employment | Self-employment | |||
β | 95% CI | β | 95% CI | |
Self-employment rate | 1.0938*** | (1.067, 1.120) | 1.0932*** | (1.067, 1.120) |
Gender | ||||
 Male | 0.0157*** | (0.010, 0.022) | 0.0150*** | (0.009, 0.021) |
 Female | Reference |  | Reference |  |
Age | 0.0161*** | (0.014, 0.018) | 0.0156*** | (0.014, 0.018) |
Age^2 | −0.0002*** | (−0.0002, − 0.0001) | −0.0002*** | (− 0.0002, − 0.0001) |
Education attainment | ||||
 Primary school or below | Reference |  | Reference |  |
 Junior high school | −0.0368*** | (−0.045, − 0.028) | −0.0368*** | (− 0.045, − 0.029) |
 Senior high school | −0.1257*** | (− 0.136, − 0.116) | −0.1251*** | (− 0.135, − 0.115) |
 College or above | −0.2747*** | (− 0.286, − 0.263) | −0.2748*** | (− 0.286, − 0.263) |
Marital status | ||||
 Married | 0.0958*** | (0.083, 0.109) | 0.0964*** | (0.087, 0.109) |
 Unmarried | Reference |  | Reference |  |
Income (monthly) | 0.00002*** | (0.00001, 0.00002) | 0.00002*** | (0.00001, 0.00002) |
Industry | ||||
 Other | Reference |  | Reference |  |
 Construction industry | −0.1084*** | (−0.119, −0.098) | −0.1124*** | (− 0.123, − 0.102) |
 Service industry | 0.1647*** | (0.155, 0.175) | 0.1620*** | (0.152, 0.172) |
Migrated with children | ||||
 Yes | 0.0094** | (0.001, 0.018) | 0.0093** | (0.0008, 0.018) |
 No | Reference |  | Reference |  |
Migrated with couple | ||||
 Yes | 0.0904*** | (0.080, 0.101) | 0.0898*** | (0.079, 0.100) |
 No | Reference |  | Reference |  |
Constant | −0.4406*** | (−0.479, −0.402) | −0.4300*** | (−0.468, − 0.392) |
Under identification test (Anderson canon. corr. LM statistic) | P-value = 0.000 | P-value = 0.000 | ||
Weak identification test (Crag –Donald Wald F statistic) | F statistic = 6477 | F statistic = 6548.51 | ||