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. Author manuscript; available in PMC: 2011 May 11.
Published in final edited form as: Inquiry. 2009 Spring;46(1):58–71. doi: 10.5034/inquiryjrnl_46.01.58

Table 4.

Marginal Effects and 90% Confidence Intervalsa from Sensitivity Analyses

a. Low-income sample without weights b. Low-income sample without state time trends c. Married & unmarried individuals below the poverty line d. Lower 50% of income (unmarried only) e. Low-income sample restricted to ages 70 and older
Pr(any informal care) .0007 (−.0022 – .0094) .0022* (.0003 – .0053) .0041 (−.0010 – .0090) .0038* (.0007 – .0120) .0071* (.0014 – .0163)
E(informal hours) .2102 (−.1019–1.964) .1058 (−.0801 – .3186) .1751 (−.2998 – .6387) .1066 (−.1774 – .6417) .1977 (−.3469 – .7271)
N 2354 2035 2469 3146 1838
*

p<.10

**

p<.05

a

Confidence intervals are bias-corrected, based on 500 bootstrap replications, and clustered at the state level