Table 6.
Ordered Probit Results Regressing Functional Limitations on Size-Adjusted Family Income and Demographic Controls for Low-Income Working-Age Individuals
| Panel A: Pretax Income | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Reading Newsprint | Hearing Conversation | Lifting Ten Pounds | Climbing Ten Stairs | Walking Quarter Mile | Using a Telephone | Getting out of Bed or a Chair | Doing Light Housework | Any Functional Limitation | |
| Pretax Income ($1,000s) | −0.0099*** | −0.006*** | −0.0167*** | −0.0167*** | −0.0145*** | 0.0065* | −0.0143*** | −0.0097*** | −0.0129*** |
| (0.00196) | (0.00218) | (0.00163) | (0.00158) | (0.00158) | (0.00371) | (0.00227) | (0.0022) | (0.00136) | |
| Average Marginal Effect of an Increase in Income on Probability of Reporting Limitation | |||||||||
| −0.0009*** | −0.0004*** | −0.0023*** | −0.0026*** | −0.0022*** | 0.0002* | −0.0010*** | −0.0007*** | −0.0028*** | |
| (0.00017) | (0.00015) | (0.00023) | (0.00024) | (0.00025) | (0.00010) | (0.00015) | (0.00016) | (0.00030) | |
| Observations | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 |
| Panel B: Posttax Income | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Reading Newsprint | Hearing Conversation | Lifting Ten Pounds | Climbing Ten Stairs | Walking Quarter Mile | Using a Telephone | Getting out of Bed or a Chair | Doing Light Housework | Any Functional Limitation | |
| Posttax Income ($1,000s) | −0.0129*** | −.0075*** | −0.0213*** | −0.0209*** | −0.019*** | 0.0065 | −0.0198*** | −0.0147*** | −0.0198*** |
| (0.00221) | (0.00249) | (0.00183) | (0.00177) | (0.00178) | (0.00425) | (0.00252) | (0.00245) | (0.00252) | |
| Average Marginal Effect of an Increase in Income on Probability of Reporting Limitation | |||||||||
| −0.0011*** | −0.0005*** | −0.0030*** | −0.0032*** | −0.0029*** | 0.0002 | −0.0013*** | −0.0011*** | −0.0036*** | |
| (0.00020) | (0.00017) | (0.00026) | (0.00027) | (0.00027) | (0.00011) | (0.00017) | (0.00018) | (0.00033) | |
| Observations | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 | 58,943 |
Notes: (1) See table 3. (2) The sample population is all individuals of working age with a pretax, size-adjusted family income less than twice the federal poverty level for a single individual.
* significant at the 10% level, ** significant at the 5% level
***
significant at the 1% level.
Source: Author's calculations based on the SIPP (1992–2005) data files.