Chinese literature associated with diagnosis of Helicobacter pylori

Table 1 Related literature of ¹³C-urea breath test

Study No. (i)	H pylori positive		H pylori negative		Se (%)	p (%)	π (%)	PV-(%)	PV+(%)
	a	c	b	d
1	36	0	0	24	100	98.50	99.40	100	100
2	148	5	0	165	96.70	100	98.41	97.06	100
3	13	0	1	23	100	95.83	97.41	100	92.86
4	39	3	0	10	92.86	100	94.23	76.92	100
5	42	0	0	10	100	96.97	99.42	100	100
6	52	2	3	13	96.30	81.25	92.86	94.55	86.67
7	47	1	0	32	97.92	100	98.75	97.14	100
8	147	3	0	3	98	90.70	97.86	96.10	95.30
9	74	3	0	49	96	100	97.56	94.23	100

Table 2 Related literature of ¹⁴C-urea breath test

Study No. (i)	H pylori positive		H pylori negative		Se (%)	p (%)	π (%)	PV-(%)	PV+(%)
	a	c	b	d
1	81	2	2	52	97.06	96.12	96.69	95.12	97.06
2	52	5	0	23	91.23	100	93.73	82.14	100
3	51	1	2	16	97.36	88.89	95.47	97.36	96.23
4	56	3	1	59	94.92	98.33	96.61	95.16	98.25
5	83	0	3	75	100	96.15	98.35	100	96.51
6	78	5	2	76	93.98	97.44	95.65	93.83	97.50
7	79	4	2	76	95.18	97.44	96.27	95	97.53

Table 3 Related literature of ELISA

Study No. (i)	H pylori positive		H pylori negative		Se (%)	p (%)	π (%)	PV-(%)	PV+(%)
	a	c	b	d
1	85	11	2	38	88.54	95	90.41	77.55	97.70
2	55	2	2	26	96.49	92.86	95.25	92.86	96.49
3	38	6	2	13	86.36	86.67	86.44	68.42	95
4	43	1	1	14	97.37	93.33	96.34	93.33	97.73
5	37	7	4	11	84.09	73.33	81.35	61.11	90.24
6	64	2	2	15	96.97	88.23	95.18	88.24	96.97
7	44	0	3	12	100	80	94.92	100	93.62

Table 4 Related literature of RUT

Study No. (i)	H pylori positive		H pylori negative		Se (%)	p (%)	π (%)	PV-(%)	PV+(%)
	a	c	b	d
1	34	2	0	24	94.44	100	96.64	92.31	100
2	32	10	0	10	76.19	100	80.77	50	100
3	38	4	1	9	89.74	90.91	89.97	69.23	97.44
4	30	2	2	17	93.75	89.47	92.16	89.74	93.75
5	55	4	7	53	93.22	88.33	90.73	92.98	88.71
6	62	4	4	13	93.94	76.47	90.36	76.47	93.94
7	46	8	4	12	85.52	75	83.12	60	92
8	151	50	11	47	75.12	81.03	76.35	48.45	93.21
9	171	30	7	51	85.07	87.93	85.84	62.96	96.07
10	72	15	0	63	82.76	100	90.02	80.77	100
11	227	22	6	29	91.16	82.86	90.05	56.86	97.42
12	73	14	0	63	83.91	100	90.66	81.82	100
13	58	7	1	30	89.23	96.77	91.65	81.08	98.31
14	34	0	7	28	100	80	89.86	100	82.93
15	64	15	3	13	81.01	81.25	81.05	46.43	95.52

Table 5 Related literature of PCR

Study No. (i)	H pylori positive		H pylori negative		Se (%)	p (%)	π (%)	PV-(%)	PV+(%)
	a	c	b	d
1	178	0	0	98	100	100	100	100	100
2	32	0	5	14	100	73.68	90.19	100	86.49
3	34	0	1	34	100	97.14	98.53	100	97.14
4	34	2	1	34	94.44	97.14	95.73	94.44	97.14
5	149	0	0	10	100	100	100	100	100
6	77	2	2	14	97.47	87.50	95.82	87.50	97.47

Table 6 Synthetic evaluation of five diadynamic methods

Diadynamic methods	Se (%)	Sp (%)	π (%)
13C-urea breath test	99.34	95.09	97.78
14C-urea breath test	97.56	94.96	96.40
ELISA	93.96	81.78	90.09
PCR	98.25	99.03	98.47
RUT	95.58	71.19	87.02