Table 1 Characteristics of studies addressing the prevalence of H. pylori infection in Japanese.

From: Changing trends in the prevalence of H. pylori infection in Japan (1908–2003): a systematic review and meta-regression analysis of 170,752 individuals

Study ID

Reference

Data collection period

Participants

Setting

Adults or Children

Random Sampling

N

Mean Age [range]

Specimen type

Measurement kit

Antigen from domestic or foreign strains

Tested (n)

Positive (n)

Prevalence (%)

1

Fukao et al.9

NA

Healthy blood donors

Community

Children & adults

No

1815

[16–64]

Serum

ELISA kit (QUIDEL Corp., San Diego)

Foreign

1815

949

53.3

2

Replogle et al.39

1980–1993

Patients screened for Hepatitis B virus at Tokyo University Hospital

Clinical- or Hospital-based

Children & adults

No

1494

[0–94]

Serum

NA

NA

1207

470

38.9

3

Kumagai et al.28

1986, 1994

Participants of a cohort study

General population

Children & adults

No

641, 549

[6–80]

Serum

GAP-IgG test (Biomerica, Newport Beach, CA)

Foreign

641, 549

510, 370

49.6, 67.4

4

Youn et al.54

1993

Patients without gastrointestinal symptoms

Clinical- or Hospital-based

Children & adults

No

580

[2–6], [7–19], [20-]

Serum

Immunoblot assay

NA

100, 260, 100

20, 108, NA

20, 40 > 75

5

Kikuchi et al.26

1996

Public service workers

Community

Adults

No

5000

[19–69]

Serum

Pilika Plate G Helicobacter, II (Biomerica Ltd., Newport Beach, CA)

Foreign

4361

1330

30.5

6

Fujisawa et al.21

1974, 1984, 1994

Participants in a health screening program

Community

Children & adults

Yes

1015

Median 35.6, [0–89]

Serum

GAP-IgG test (Biomerica, Newport Beach, CA)

Foreign

1015

426

42.0

7

Yang et al.53

1996

Employees of a manufacturing plant

Community

Adults

No

598

[20–59]

Serum

GAP-IgG test (Biomerica, Newport Beach, CA)

Foreign

545

216

39.6

8

Shibata et al.41

1997

Residents

General population

Adults

No

1207

[30–64]

Serum

GAP-IgG, Biomerica, USA

Foreign

636

310

48.7

9

Ogihara et al.36

1989–1990

Employees of small and medium-sized textile companies

Community

Adults

No

9500

[39–65 + ]

Serum

Pilika Plate G Helicobacter, II (Biomerica Ltd, Newport, USA)

Foreign

8837

4268

48.3

10

Yamagata et al.50

1988

Participants of a cohort study

General population

Adults

No

2742

57 in men, 59 in women, [40–80 + ]

Serum

HM-CAP (Enteric Products Inc, Westbury, NY)

Foreign

2602

1721

66.1

11

Kurosawa et al.29

1995–1996

Elementary/junior high School students

Community

Children

No

610

6 and 14 years

Saliva

HELISAI kit

Foreign

610

83

13.6

12

Okuda et al.38

1998–1999

Asymptomatic children

Clinical- or Hospital-based

Children

No

484

[0–12]

Stool

Meridian Diagnositics, Cincinnati, USA

Foreign

484

31

6.4

13

Yamaji et al.51

1996–1997

Individuals attending a health screening program

Community

Adults

No

6489

48.1 [NA]

Serum

GAP-IgG test (Biomerica, Newport Beach, CA)

Foreign

5732

2695

47.0

14

Yamashita et al.52

1995–1996

Healthy Children in an out-patient clinic

Clinical- or Hospital-based

Children

No

336

[0–19]

Serum

HEL-p-test; AMRAD, Melbourne, Victoria, Australia

Foreign

336

59

17.5

15

Shibata et al.5

1993

Residents attending a health screening program

General population

Adults

No

2347

[30–79]

Serum

HM-CAP, EPI Inc., USA

Foreign

954

703

73.7

16

Fukuda et al.10

2003

Asymptomatic children

General population

Children

No

300

8

Serum

HEL-p-test; AMRAD, Melbourne, Victoria, Australia

Foreign

300

37

12.3

17

Kato et al.11

NA

Healthy Children

Clinical- or Hospital-based

Children

No

454

6.1[0–15]

Serum

HM-CAP and PP-CAP, En-teric Products, New York, NY, USA

Foreign

454

55

12.2

18

Kato et al. 2004

NA

Individuals with upper, gastrointestinal symptoms

Clinical- or Hospital-based

Adults

No

6578

[21–71 + ]

Serum

HM-CAP, Enteric Products, Incorporated, Stony Brook, NY, USA or a GAP lgG kit (Bio-Rad, Richmond, CA, USA).

Foreign

6578

3300

50.2

19

Nobuta et al.12

1995–1996

Asymptomatic individuals attending a health screening program

Community

Adults

No

250, 209

40.7 (Niigata), 39.1 (Okinawa)

Serum

HM-CAP

NA

250, 209

125, 88

50.0, 41.1

20

Kikuchi et al.27

1988–1990

Residents in various areas

General population

Adults

No

635

[40–79]

Serum

J-HM-CAP, Kyowa Medex Co. Ltd., Tokyo

Domestic

633

443

70.0

21

Kawade et al.24

1999–2001

Patients with dyspepsia

Clinical- or Hospital-based

Adults

No

644

82.7 [65–107]

Serum

NA

NA

644

337

52.3

22

Shimatani et al.42

1997–2003

University students attending a health check-up program

General population

Adults

No

530

23.7 [NA]

Biopsy & serum

Rapid urease test (CLO test, Ballard Medical Products, Utah, USA), and HM-CAP Enteric Products, Westbury, NY, USA)

Foreign

530

87

16.4

23

Sasazuki et al.40

1990–1992

Participants of a cohort study

General population

Adults

No

511

57.4 [NA]

Serum

E Plate “Eiken” H. pylori, Antibody, Eiken Kagaku Co. Ltd., Tokyo, Japan

Domestic

511

383

74.9

24

Fujimoto et al.20

1993, 2002

Residents attending a health screening program

General population

Adults

No

3819

[20–70 + ]

Serum

ELISA (JHM-CAP, Kyowa Medix Co.,Tokyo, Japan)

Domestic

3819

2116

55.4

25

Shiotani et al.45

2005–2006

University students

Community

Adults

Yes

777

19.5 [18–25]

Serum

E Plate test (Eiken Kagaku)

Domestic

777

114

14.7

26

Naito et al.31

2002–2003

Children from kindergarten or elementary school attending a health screening program

Community

Children

No

452

4, 7, 10

Urine

URINELISA H.pylori kit (Otsuka Pharmaceuticals, Tokyo)

Domestic

150, 150, 149, 149, 153, 153

8, 10, 7, 6, 6, 7

5.3, 6.7, 4.7, 4.0, 4.0, 4.6

Study ID

Reference

Data collection period

Participants

Setting

Adults or Children

Random Sampling

N

Mean Age [range]

Specimen type

Measurement kit

Antigen from domestic or foreign strains

Tested (n)

Positive (n)

Prevalence (%)

27

Hirai et al.16

2007

Asymptomatic adults

Clinic- or Hospital-based

Adults

No

235

[40–63]

Stool

TestMate Papid Pylori Antigen; BD Japan

Domestic

186

75

40.3

28

Mizuno et al.30

1987

Residents

General population

Adults

No

2589

[35–75 + ]

Serum

Pilika Plate G Helicobacter, II (Biomerica Ltd., Newport Beach, CA)

Foreign

2859

2147

75.1

29

Nakajima et al.32

1998, 2005

Individuals attending a health screening program

Community

Adults

No

384

[20–79]

Serum

E-plate (Eiken Chemical, Tokyo, Japan)

Domestic

384

192

50.0

30

Kawai et al.25

2003–2004

Patients undergoing routine health check-up

Clinic- or Hospital-based

Adults

No

418

39.2 [22–58]

Serum

E-plate (Eiken Chemical, Tokyo, Japan)

Domestic

418

141

33.7

31

Nakao et al.33

2001–2005

All first-visit outpatients at Aichi Cancer Center

Clinic- or Hospital-based

Adults

No

1465

[20–79]

Serum

E-plate (Eiken Chemical, Tokyo, Japan)

Domestic

1406

798

56.8

32

Akamatsu et al.15

2007–2009

Junior high school students

General population

Children

No

1232

[16–17]

Urine

RAPIRAN Otsuka Pharmaceutical Co, Tokyo, Japan

Domestic

1224

64

5.2

33

Toyoda et al.47

2004–2007

Residents

General population

Adults

No

1728

57.8 [30–89]

Serum

JHM-CAP, Kyowa, Medex Co., Ltd., Tokyo, Japan

Domestic

1540

923

59.9

34

Tamura et al.46

2008–2010

Participants of a cohort study

General population

Adults

No

5167

[35–69]

Urine

Rapiran (Otsuka Pharmaceutical Co., Ltd., Tokyo, Japan)

Domestic

5167

1881

36.4

35

Shimoyama et al.43

2005

Healthy adults attending a health screening program

General population

Adults

No

1048

[25–85]

Serum

E-plate (Eiken Chemical, Tokyo, Japan)

Domestic

1048

638

60.9

36

Urita et al.48

1999–2004

Children attending a clinic

Clinic- or Hospital-based

Children

No

838

12.4 [1–18]

Serum

NA

NA

828

101

12.1

37

Nakagawa et al.17

2005–2010

Healthy adults attending a clinic

Clinic- or Hospital-based

Adults

No

268

[20–78]

UBT

NA

NA

268

175

65.3

38

Ueda et al.67

1997–2013

Individuals attending a health screening program

Community

Adults

No

14716

NA [20 + ]

Serum/ur-ine/stool

E-plate (Eiken H.pylori antibody)

Domestic

14716

5879

39.9

39

Hirayama et al.4

2008

Employees of a large company

Community

Adults

No

21144

NA [35–79]

Serum

E-plate (Eiken Chemical Co.Ltd, Tokyo, Japan)

Domestic

21144

5822

27.5

40

Okuda et al. 2014

2010–2011

Participants of a population-based survey

General population

Children

No

1299, 1909

NA [0–8], NA [0–11]

Stool

TestMate Pylori Antigen EIA (Wakamoto Pharmaceutical Co. Ltd)

Domestic

688, 835

13, 15

1.9, 1.8

41

Shimoyama et al.44

2012

Healthy adults attending a health survey

General population

Adults

No

810

[40–80]

Serum/st-ool

E-plate (Eiken Chemical Co.jLtd, Tokyo, Japan; Testmate EIA (Wakamoto Pharmaceutical Co., Ltd, Kyowa Medex)

Domestic

505

224

44.4

42

Watanabe et al.49

2005–2013

All first-visit outpatients at Aichi Cancer Center

Clinic- or Hospital-based

Adults

No

4698

60.5 [20–79]

Serum

E-plate (Eiken H.pylori antibody)

Domestic

4285

1607

37.5

43

Kamada et al.23

1975–1978, 1991–1994, 2010–2013

Patients undergoing endoscopy for dyspepsia or gastric cancer screening

Clinic- or Hospital-based

Adults

No

1381

[18–70 + ]

Biopsy

Giemsa or Gimenez staining

NA

289, 787, 305

216, 417, 107

74.7, 53.0, 35.1

44

Akamatsu et al.18

2007–2013

High school students

General population

Children

No

3251

[16–17]

Urine

RAPIRAN Otsuka Pharmaceutical Co, Tokyo, Japan

Domestic

3251

136

4.2

45

Nakayama et al. 201634

2011–2013

Junior high school students

General population

Children

No

681

NA [12–15]

Serum

E-plate (Eiken Chemicals, Tokyo, Japan)

Domestic

454

14

3.1

46

Charvat et al.19, JPHC Cohort II

1993–1994

Residents in various areas

General population

Adults

Yes

21682

[30–79]

Serum

E-plate (Eiken Chemicals, Tokyo, Japan)

Domestic

21682

14809

68.3

  1. Abbreviation: NA, Not available; UBT, 13C-urea breath test.
  2. Information on JPHC next cohort (Study ID = 45) is unpublished, details available upon request.