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. 2014 Dec 16;9(12):e115030. doi: 10.1371/journal.pone.0115030

Table 4. Comparison between Pearson’s correlation coefficients between plasma immature SP-B, SP-A, SP-D and RAGE levels, pulmonary function and cardiopulmonary exercise data in the heart failure population.

ImmatureSPB vs. SPA ImmatureSPB vs. SPD ImmatureSPB vs. RAGE SPA vs.SPD SPA vs.RAGE SPD vs.RAGE
CI 95% p value CI 95% p value CI 95% p value CI 95% p value CI 95% p value CI 95% p value
DLCO (%pred) (0.154;0.294) <0.05 (–0.008;0.326) 0.06 (0.141;0.500) <0.05 (–0.136;0.145) NS (–0.317;–0.007) <0.05 (0.014;0.317) <0.05
Peak VO2 (mL/Kg) (–0.224;0.073) NS (–0.305;0.038) NS (–0.426;–0.050) <0.05 (–0.221;0.109) NS (–0.347;0.034) NS (–0.272;0.058) NS
VE/VCO2 slope (–0.078;0204) NS (–0.164;0.141) NS (–0.227;0.133) NS (–0.081;0.212) NS (–0.040;0.266) NS (–0.192;0.111) NS
LVEF (%) (–0.129;0.205) NS (–0.183;0.173) NS (–0.328;0.110) NS (–0.147;0.217) NS (–0.334;0.046) NS (–0.064;0.277) NS
BNP (pg/mL) (–0.318;0.060) NS (–0.263;0.220) NS (–0.276;0.232) NS (–0.285;0.088) NS (–0.297; 0.090) NS (–0.172;0.175) NS

SPs, RAGE, Peak VO2, VE/VCO2 slope and BNP levels are transformed into natural logarithm. BNP = brain natriuretic petide; CI = confidence interval. For other abbreviation see table 1 and 2.