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Table 1 Comparative rates of schizophrenia in isolate and homogenous populations

From: Schizophrenia and psychotic symptoms in families of two American Indian tribes

 

Southwest Indians

Plains Indians

Roy, et al1 [56]

Sampath, et al2 [57]

Kinzie, et al3 [58]

Kebede, et al4 [59]

Myles-Worsley, et al5 [60]

Scully, et al6 [62]

McConnell, et al7 [61]

Bates, Van Dam8 [64]

National Comorbidity Study9 [63]

N

582

331

1218

214

131

68,378

13,750

29,542

1242

12,200

8098

Prevalence per 1000

8.6

3.02

22.17

29.58

21.00

4.69

11.64

3.89

2.42

3.1

5.00

95% C.I.

± 2.4

± 1.1

± 2.6

± 2.8

± 2.5

± 1.2

± 2.0

± 1.2

± 0.9

± 1.2

± 1.4

S.E.

0.012

0.006

0.013

0.014

0.013

0.006

0.01

0.006

0.005

0.0005

0.007

  1. 11970, Saskatchewan Reservation, age 15+; 21974, Baffin Island Eskimo, age 15+; 31988, Western United States Native Americans, age 20+; 42003, Butajira-Ethiopia, age 15-49; 51999, Palau, Micronesia, age 15+; 62004, Co. Monaghan, Ireland, age 0+; 72002, District of Derry, Ireland, age 18-64; 81984, British Columbia Coastal Indians; 9 1994, United States population-based, age 15-54