Study reference | NSS Scale | Blindness# | Schizophrenia Group | Relatives Group | Control Group | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  |  | Disorder (Diagnostic method) | N | Mean Age | Male% | Years in education | Illness duration in years | NSS Mean (SD) | Relative Type | N | Mean Age | Male% | Years in education | NSS Mean (SD) | Control Type | N | Mean Age | Male% | Years in education | NSS Mean (SD) |
Compton et al 2007 [24] | NES | No | Scz or scz-like (SCID-DSMIV) | 73 | 32.4 | 58% | 13.1 | nr | 20.7 (10.6) | Mixed | 44 | 43.2 | 16% | 13.1 | 15.9 (9) | Waiting area and public | 54 | 44.8 | 50% | 12.3 | 14.3 (8.3) |
Egan et al 2001 [25] | NES | Yes | Scz (DSMIV | 115 | 35.9 | 83% | 15.4 | nr | 6.8 (4.24) | Siblings | 185 | 36.3 | 43% | 15.4 | 3.05 (2.82) | Normal Volunteers | 88 | 33.4 | 42% | 15.9 | 2.8 (2.29) |
Gourion et al 2003 [26] | SNE | No | Scz or scz-like (DSMIV) | 18 | 28.2 | 67% | 5.5 | 9.1 | 18.7 (9.4) | Parents | 36 | 60.4 | 50% | 5.5 | 16 (5.8) | Hospital Staff or volunteers | 42 | 26.6 | 38% | 7.1 | 3.9 (2.8) |
Ismail et al 1998 [27] | CNE | No | Scz (DSMIIITR) | 60 | 38.2 | 73% | nr | 14.8 | 3.25 (3.31) | Siblings | 21 | 37.9 | nr | nr | 1.33 (2.01) | Normal workers | 75 | 35.9 | 79% | nr | 0.2 (0.54) |
Mechri et al 2009 [28]a | SNE | No | Scz (DIGS) | 69 | 28.2 | 74% | 12.4 | 6.1 | 15 (7.9) | Siblings | 43 | 29.2 | 40% | 13.8 | 8 (4) | Hospital Volunteer | 108 | 28.2 | 63% | 13.5 | 5.8 (3.3) |
Mechri et al 2009 [28]b | SNE | No | Scz (DSMIV) | 66 | 31.2 | 76% | 8.5 | nr | 19.5 (5.2) | Siblings | 31 | 32.2 | 71% | 10.6 | 10.8 (3.4) | Hospital Volunteer | 60 | 30.8 | 67% | 9.8 | 4.2 (2.1) |
Rossi et al 1990 [14] | CNE | Yes | Scz (DSMIII) | 58 | 34.8 | 64% | 6.9 | 11.1 | 12.63 (4.79) | Mixed | 31 | 39.2 | 58% | 6.9 | 9.8 (2.42) | Family Practice | 38 | 36.2 | 58% | 8.5 | 4.07 (2.53) |
Yazici et al, 2002 [29] | NES | No | Scz (DSMIV) | 99 | 31.4 | 48% | 10.9 | 8.9 | 20.47 (10.07) | Siblings | 80 | 31.6 | 53% | 10.9 | 10.6 (7.23) | Normal Volunteers | 59 | 31.6 | 53% | 10.8 | 6.66 (5.37) |