Table 4.
Differences in Social Functioning for Cluster Derived Groups and Cross-Validation Sample Using the Rule of Thumb Classification
| First Phase Sample (N = 77) | Cross-Validation Sample (N = 63) | ||||||||||||
| Cluster Analysis Derived Groups | “Rule of Thumb” Derived Groups | ||||||||||||
| HN (1) (n = 24) Mean (SD) | HSC (2) (n = 27) Mean (SD) | LSC (3) (n = 26) Mean (SD) | F/Chi square | P | Bonferroni post hoc comparisona | HN (1) (n = 12) Mean (SD) | HSC (2) (n = 19) Mean (SD) | LSC (3) (n = 32) Mean (SD) | F/Chi square | P | Bonferroni post hoc comparisonsa | ||
| Age of onset | 23.2 (7.7) | 22.0 (11.8) | 23.0 (9.9) | .106 | .900 | ns | 25.2 (9.3) | 18.6 (6.0) | 24.0 (8.8) | 3.31 | .043 | ns | |
| GAF | 41.1 (6.5) | 44.48 (9.4) | 41.1 (7.1) | 1.56 | .216 | ns | 40.0 (7.9) | 44.1 (9.0) | 42.0 (8.6) | .870 | .424 | ns | |
| QLS total | 42.7 (15.8) | 55.0 (17.1) | 50.0 (22.1) | 2.82 | .066 | ns | 51.3 (10.6) | 63.4 (23.2) | 54.8 (20.0) | 1.67 | .196 | ns | |
| QLS interpersonal | 15.2 (9.9) | 21.4 (8.9) | 19.9 (10.2) | 2.71 | .073 | ns | 15.1 (5.3) | 22.4 (10.3) | 20.3 (10.0) | 2.26 | .112 | ns | |
| QLS intrapsychic | 19.6 (6.6) | 26.1 (7.9) | 22.6 (8.9) | 4.22 | .018 | 2>1 | 22.4 (5.6) | 27.8 (8.1) | 24.4 (8.8) | 1.848 | .166 | ns | |
| QLS objects/activities | 6.7 (1.8) | 7.0 (2.1) | 5.8 (2.2) | 2.33 | .104 | ns | 7.9 (2.4) | 8.1 (1.8) | 6.8 (2.1) | 2.68 | .076 | ns | |
| Count (%) | Count (%) | Count (%) | Count (%) | Count (%) | Count (%) | ||||||||
| Marital Status | 6.69 | .035 | 0.644 | .725 | |||||||||
| Single | 23 (95.8) | 18 (66.7) | 20 (79.2) | 1>3>2 | 9 (75.0) | 12 (63.2) | 20 (62.5) | ||||||
| Ever Married | 1 (4.2) | 9 (33.3) | 6 (20.8) | 2>3>1 | 3 (25.0) | 7 (36.8) | 12 (37.5) | ns | |||||
| # Lifetime hospitalizations | 2.59 | .273 | ns | 5.79 | .055 | ||||||||
| less than 6 | 16 (66.7) | 12 (44.4) | 15 (57.7) | n = 62b | 7 (58.3) | 4 (21.1) | 16 (51.6) | ||||||
| 6 or more | 8 (33.3) | 15 (55.6) | 11 (42.3) | 5(41.7) | 15(78.9) | 15(56.5) | ns | ||||||
| # Lifetime criminal arrests (n = 76)b | 6.81 | .033 | 7.88 | .019 | |||||||||
| 2 or less | 17(70.8) | 22(81.5) | 12(48.0) | 2>1>3 | n = 21b | 4 (80.0) | 7 (77.8) | 1 (14.3) | 2>1>3 | ||||
| More than 2 | 7 (29.2) | 5 (18.5) | 13 (52.0) | 3>1>2 | 1 (20.0) | 2 (22.2) | 6 (85.7) | 3>2>1 | |||||
| Lifetime substance abuse | 0.384 | .825 | 6.29 | .043 | |||||||||
| Yes | 17 (70.8) | 21 (77.8) | 20 (76.9) | n = 34b | 5 (62.5) | 8 (80.0) | 16 (100.0) | 3>2>1 | |||||
| No | 7 (29.2) | 6 (22.2) | 6 (23.1) | ns | 3 (37.5) | 2 (20.0) | 0 (0.0) | 1>2>0 | |||||
Note: HN (1) = High Negative Symptoms; HSC (2) = Higher Social Cognition; LSC (3) = Low Social Cognition GAF: Global Assessment of Functioning Scale; QLS = Quality of Life Scale.
a
Mean differences are significant at the 0.05 level.
b
Absence of criminal or substance abuse data for some of the participants.