Table 3. Quality control results of miRNA sequencing data from blood and urine exosome

Sample_ID	Total_Reads	Total_Bases	A%	T%	C%	G%	Q20%	Q30%	GC%
Urine exosomes	27,871,527.67±5,722,347.37	1,421,447,911±291,839,716	23.87±1.80	23.98±1.03	22.49±0.63	29.67±2.18	99.05±0.34	96.98±0.75	52.15±2.31
Blood exosomes	25,884,881.33±11,374,109.12	1,320,128,948±580,079,565	23.24±0.75	24.01±0.91	23.56±0.86	29.18±0.81	97.87±2.63	95.77±3.60	52.74±0.18
P-value	0.8003	0.8003	0.6056	0.9717	0.1571	0.7336	0.4839	0.5992	0.6820

Q20% reflects the quality of the data, indicating that in the sequencing results, the probability of a base error at a certain position caused by the sequencing instrument is less than 1%; Q30% indicates that in the sequencing results, the probability of a base error at a certain position caused by the sequencing instrument is less than 0.1%.
miRNA, microRNA.