First author

Year

Sample size

(Cc/Co)

Country

Source of

sample

Method of detection

Subject type

Score

Al Asquah

2009

HP+

HP-

Saudi Arabia

Hospital

RUT

Dental plaque - Stomach

8

Anand

2006

37/13

25/26

India

Community

RUT and Serological test

-

9

Ding

2015

541/73

312/62

China

Hospital

HPS

-

8

Dye

2002

30/35

20/49

United States

Community

Serological test

Whites – Blacks – Mexican

9

Navabi

2010

189/951

463/3,981

Iran

Hospital

RUT

Men - Women

8

Nisha

2016

23/17

12/13

India

Community

RUT

-

8

Silva

2010

209/136

84/71

Brazil

Hospital

PCR

-

7

Souto

2008

12/1

50/30

Brazil

Community

PCR

-

9

Umeda

2003

39/4

130/52

Japan

Hospital

PCR

-

8

Yang

2016

7/1

10/10

China

Hospital

RUT, culture and PCR

-

8

Zheng and Zhou (1)

2015

50/20

24/46

China

Hospital

PCR

-

8

Zheng and Zhou (2)

2015

25/45

9/61

China

Hospital

PCR

-

8