Table 2.

Demographic characteristics of the included studies assessing the prevalence of triple infection.

Study number	First author	Sample size, n	Study population	HBVa/HDVb/HIV triple infection
				Sample size, n	Prevalence, %	Age, mean (range)	Male participants, n (%)
1	Soriano [18]	5342	HIV	61	1.14	34 (NR)	44 (72.1)
2	Hønge [19]	576	HIV	18	3.13	NR	NR
3	Dény [20]	206	HIV	19	9.22	NR	NR
4	Coffie [21]	791	HIV	10	1.26	NR	NR
5	Ifeorah [22]	1102	HIV	8	0.73	NR (31-40)	5 (62.5)
6	Nicolini [15]	454	HBV	16	3.52	34.25 (6.16)d	14 (87.5)
7	Saravanan [23]	450	HBV	4	0.89	NR (21-40)	4 (100)
8	Butler [24]	1928	HBV	390	20.23	NR	NR
9	Chang [25]	507	HBV	150	29.59	NR	NR
10	Oprea [26]	205	HIV+HBV	21	10.24	16 (12-20)	NR
11	Béguelin [10]	771	HIV+HBV	117	15.18	34 (29-37)	92 (79)
12	Sheng [11]	104	HIV+HBV	26	25.00	35 (25-61)	25 (96.2)
13	Lee [27]	375	HIV+HBV	38	10.13	38 (NR)	36 (94.7)
14	Boyd [28]	308	HIV+HBV	12	3.90	35.2 (NR)	8 (66.7)

^aHBV: hepatitis B virus.

^bHDV: hepatitis D virus.

^cNR: not reported.

^dMedian (SD).