Table 1 (abstract P116). Prevalence, age , sex and race distribution of NDPH in different studies.

Castillo-1995

Spain

S-L

1883 general population

22-73 yr

0.1%GP

Li & Rozen-2002

USA

S-L

56 NDPH cases

40(71%)

16(29%)

2.5

12-78

Caucasian:87%

Black:11%

Hispanic:2%

Bigal-2004

USA

S-L

170 adolescent 13-17 yr with CDH

638 adult with CDH

21% CDH

10.8% CDH

Takase- 2004

Japan

ICHD 2

30 NDPH cases of 1760 CDH

1.7% CDH

13(43%)

17(57%)

0.8

13-73

Meineri-2004

Italy

ICHD2,S-L

18 NDPH cases of 265 CDH

6.7% CDH

11(61%)

7(39%)

1.6

13-76

Mack-2004

USA

M-ICHD2

175 children <18 yr with CDH

23% CDH

27(67.5%)

13(32.5%)

2.1

Kung 2006

USA

M-ICHD 2

306 children and adolescents 6-18 yr in a tertiary headache center

28% CDH

34(64.2%)

19(35.8%)

1.7

Grande 2009

Norway

ICHD 2

30000 general population 30-44 yr

0.03% GP

Robbins 2010

USA

M-ICHD2

71 NDPH

51(72%)

20(28%)

2.5

8-76

Cacausian:80.3%

Black:5.6%

Hispanic:9.9%

Prakash 2012

India

M-ICHD2

63 NDPH

36(57%)

27(43%)

1.3

18-68

Rozen 2016

USA

ICHD-3β

97 NDPH

65(67%)

32(33%)

2

Mean:

F:32.4

M:35.8

Cacausian:98%

Black:1%

Hispanic:1%

Uniyal 2017

India

ICHD-3β

55 NDPH

45.5%

54.5%

0.8

Mean:28.4