Sensitivity of diagnosis of spontaneous bacterial peritonitis is higher with the automated cell count method

Table 2 Performance of automated and manual cell count methods in cohort 2 employing different cutoffs, n (%)

	SBP		Total
	Positive	Negative
Manual method cell count
Result cutoff ≥ 200 cells × 106
Positive	19 (61)	0	19
Negative	12	50 (100)	62
Total	31	50	81
Result cutoff ≥ 250 cells × 106
Positive	18 (58)	0	18
Negative	13	50 (100)	63
Total	31	50	81
Result cutoff ≥ 300 cells × 106
Positive	18 (58)	0	18
Negative	13	50 (100)	63
Total	31	50	81
Automated method cell count
Result cutoff ≥ 0.1 cells × 109/L
Positive	24 (89)	26	50
Negative	3	25 (49)	28
Total	27	51	78
Result cutoff ≥ 0.2 cells × 109/L
Positive	21 (78)	2	50
Negative	6	49 (96)	28
Total	27	51	78
Result cutoff ≥ 0.3 cells × 109/L
Positive	20 (74)	0	20
Negative	7	51 (100)	58
Total	27	51	78
Result cutoff ≥ 0.4 cells × 109/L
Positive	19 (70)	0	20
Negative	8	51 (100)	58
Total	27	51	78

SBP: Spontaneous bacterial peritonitis.