Fig. 2.

Correlation of gene relative expression with patient clinical phenotypes. Spearman rank correlation coefficient of the seven bladder pain syndrome patients, selected using principal component analysis, with the clinical phenotypes. There was a positive correlation between transcript expression for CCL21 and FGF7 and the O’Leary-Sant Interstitial Cystitis Symptom and Problem Index questionnaire scores (CCL21 ρ = 0.93, p = 0.0067; FGF7: ρ = 0.61, p = 0.17).

BPS = bladder pain syndrome; ICS/PI = O’Leary-Sant Interstitial Cystitis Symptom and Problem Index.