Table 3. Logit models for the association of maternal and paternal education with child disability in 1987 and 2006.

Sample		1987			2006
		Model 1	Model 2	Model 3	Model 1	Model 2	Model 3
All children	Maternal education	-0.060*** (0.003)		-0.048*** (0.003)	-0.080*** (0.004)		-0.062*** (0.005)
	Paternal education		-0.051*** (0.003)	-0.036*** (0.003)		-0.079*** (0.005)	-0.048*** (0.006)
	Covariates	Yes	Yes	Yes	Yes	Yes	Yes
	N	408076	408076	408076	356625	356625	356625
Male children	Maternal education	-0.056*** (0.004)		-0.043*** (0.004)	-0.077*** (0.006)		-0.061*** (0.006)
	Paternal education		-0.056*** (0.004)	-0.042*** (0.004)		-0.075*** (0.007)	-0.044*** (0.007)
	Covariates	Yes	Yes	Yes	Yes	Yes	Yes
	N	211402	211402	211402	192639	192639	192639
Female children	Maternal education	-0.064*** (0.005)		-0.055*** (0.005)	-0.083*** (0.007)		-0.062*** (0.008)
	Paternal education		-0.046*** (0.004)	-0.029*** (0.005)		-0.085*** (0.008)	-0.054*** (0.009)
	Covariates	Yes	Yes	Yes	Yes	Yes	Yes
	N	196674	196674	196674	163986	163986	163986

Robust standard errors in parentheses;

* P < 0.05.

** P < 0.01.

*** P < 0.001.

All models controlled for all covariates listed in Table 1.