Table 5.

Cardiac Function versus Pulmonary Function

Sibship Number	Patient	Cardiac Function	Pulmonary Function	Shortening Fraction (%)
Discordant Sibships by Cardiac Function
1 **	1	Best	Worst	30
	2	Best	Best	36
	3	Worst	Best	21*
2	1	Worst	Best	16*
	2	Best	Worst	36
7	1	Best	Poor	31
	2	Worst	Poor	8*
Concordant Sibships by Cardiac Function
4	1	Poor	Better	16*
	2	Poor	Better	22*
5	1	Poor	Poor	11*
	2	Poor	Poor	15*
8	1	Poor	Poor	28*
	2	Poor	Poor	25*

^*patient meets criterion for dilated cardiomyopathy

^**numbered identically to the sibships in Tables 1–4