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. 2007 Sep;2(3):313–321. doi: 10.2147/copd.s2147

Table 2.

Correlations (Spearmans) between variables in Table 1 and SGRQ symptoms, impacts, activities and total scores, (N = 54 subjects). (NS = Not statistically significant)

Variable Symptoms Impacts Activities Total score
FEV1*** −0.498 −0.461 −0.516 −0.595
FEV1%*** −0.584 −0.577 −0.620 −0.644
FEV1/FVC*** −0.576 −0.641 −0.437 −0.558
BMI* −0.278 −0.338 NS NS
Smoker* 0.555 0.649 0.448 0.582
tHCY* 0.295 0.330 NS 0.289
sCRP* 0.339 0.286 NS 0.316

Note: ***p < 0.001 for all correlations in this row;

*p < 0.05 for all correlations in this row. Except where NS is stated.