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

From: 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

  Product–moment correlation coefficient r ( P -value) 1
  Normal persons Marfan patients
Variable All 2 Male Female All Male Female
(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)
  1. 1P-value for rho. 2The mean MPA diameters were 2.07 cm in normal males versus 2.05 cm in normal females (P = .747).