The main pulmonary artery in adults: a controlled multicenter study with assessment of echocardiographic reference values, and the frequency of dilatation and aneurysm in Marfan syndrome

Table 2 Correlation r of variables with the diameter of the main pulmonary artery (cm)

	Product–moment correlation coefficient r ( P -value) ¹
	Normal persons			Marfan patients
Variable	All ²	Male	Female	All	Male	Female
Variable	(N = 123)	(N = 72)	(N = 51)	(N = 98)	(N = 42)	(N = 56)
Age (years)	-.095 (.296)	-.01 (.929)	-.2 (.159)	.203 (.045)	.279 (.074)	.152 (.262)
Body weight (kg)	.172 (.057)	.013 (.913)	.293 (.037)	.115 (.261)	.125 (.429)	.133 (.327)
Body height (m)	.09 (.319)	.049 (.681)	.145 (.311)	.093 (.362)	.108 (.498)	.130 (.340)
Body mass index (kg/m²)	.141 (.121)	-.036 (.766)	.269 (.056)	.076 (.459)	.096 (.543)	.062 (.648)
Body surface area (DuBois; m²)	.149 (.099)	.032 (.789)	.262 (.063)	.120 (.240)	.142 (.369)	.146 (.282)

¹P-value for rho. ²The mean MPA diameters were 2.07 cm in normal males versus 2.05 cm in normal females (P = .747).

ISSN: 1750-1172