Table 1.
Demographics of Symptom-Based Remitters and Nonremitters in Both the NAPLS3a and NAPLS2 Samples
| NAPLS3 | NAPLS2 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Remitters | Nonremitters | Test Statistic | P Value | Remitters | Nonremitters | Test Statistic | P Value | |||||
| N | Mean (SD) | N | Mean (SD) | t/χ 2 (df) | N | Mean (SD) | N | Mean (SD) | t/χ 2 (df) | |||
| Age | 75 | 18.4 (4.06) | 493 | 18.4 (4.02) | t(97.3) = −0.06 | .94 | 94 | 18.3 (4.35) | 459 | 18.6 (4.25) | t(131.9) = 0.54 | .59 |
| Sex, no. (%) female | 75 | 34 (45.3%) | 493 | 225 (45.6%) | χ 2(2) = 0.0025 | .96 | 94 | 34 (36%) | 459 | 202 (44%) | χ 2(2) = 1.96 | .16 |
| Race, no. (%) nonwhite | 75 | 28 (37.3%) | 493 | 221 (44.8%) | χ 2(2) = 1.49 | .22 | 94 | 42 (44.7%) | 459 | 184 (40.1%) | χ 2(2) = 0.68 | .41 |
| Ethnicity, no. (%) Hispanic | 75 | 15 (20%) | 493 | 98 (19.9%) | χ 2(2) = 0.0006 | .98 | 94 | 23 (24.5%) | 459 | 74 (16.1%) | χ 2(2) = 3.76 | .052 |
| Years of education | 75 | 11.5 (3.16) | 493 | 11.6 (3.09) | t(96.7) = 0.20 | .84 | 94 | 11.4 (3.23) | 459 | 11.3 (2.75) | t(122.1) = −0.09 | .92 |
| Baseline positive symptoms | 75 | 11.7 (3.63) | 493 | 13.0 (3.23) | t(92.6) = 3.08 | .003 | 94 | 9.6 (4.28) | 459 | 12.3 (3.63) | t(121.9) = 5.75 | <.001 |
| Baseline functioning | 75 | 52.3 (11.8) | 493 | 51.3 (12.29) | t(99.9) = −0.63 | .53 | 94 | 49.5 (11.12) | 459 | 48.4 (10.74) | t(130.9) = −0.88 | .38 |
Bold values indicate significant differences between remitters and non-remitters at the significance level of p = 0.05.
aNAPLS = North American Prodrome Longitudinal Study.