Participants in the Longitudinal Follow-ups of the single session multidisciplinary Intake Assessment: Sample Descriptions

At the time of the second multidisciplinary intake assessment (the first follow-up) (1993-1994), N = 431 (83.5%) of the baseline sample (N = 516) survived. Of these, N = 361 (83.8%) participated fully in the single-session multidisciplinary intake assessment (see Table 2). This sample consisted of 178 men and 183 women. Frequency distribution of participants of this N = 361 longitudinal sample in terms of the original BASE age/cohort design is given in column 2 of Table 8. Column 2 of Table 9 shows the actual age distribution at the 1993-1994 assessment. Average time interval between baseline assessment and the second multidisciplinary intake assessment was 1.9 years (range 1.0-4.1 years). Partial data were obtained from N = 17 (3.9% of survivors), and 12.3% did not participate. Table 10 provides demographic information for the N = 361 participants who completed the first interim follow-up (1993-1994). Differences due to attrition between this longitudinal sample and the BASE N = 516 sample can be determined by comparing information in column 1 of Table 10 with Table 1.

At the third multidisciplinary intake assessment (second repeat of the multidisciplinary intake assessment) (1995-1996), N = 313 (60.7%) of the baseline sample were still alive. Of these, N = 244 (78.0%) participated fully in the initial session of multidisciplinary assessment. This follow-up sample consisted of 122 men and 122 women. Frequency distribution of participants of this N = 244 longitudinal sample in terms of the original BASE age/cohort design is given in column 3 of Table 8. Column 3 of Table 9 shows the actual age distribution at the 1995-1996 assessment. The average time interval between baseline assessment and this third multidisciplinary intake assessment was 3.8 years (range 2.4-5.2 years). The average interval from the second multidisciplinary intake assessment was 1.8 years (range 0.8-2.5 years). 84.4% of this sample also completed the Intensive Protocol at this measurement occasion. Minimal data on the Intake Assessment was obtained from an additional N = 12 (3.8% of survivors). 18.2% persons of the survivors did not participate in any level of the follow-up. Table 11 provides further demographic information on the participants who completed the Intake Assessment three times (1990-1993, 1993-1994, and 1995-1996).

At the fourth multidisciplinary intake assessment (third repeat of the multidisciplinary intake assessment) (1997-1998), N = 239 (46.3%) of the baseline sample were still alive. Of these, N = 164 (68.6%) participated fully in the initial session of the multidisciplinary assessment. This follow-up sample consisted of 74 men and 90 women. Frequency distribution of participants of this N = 164 longitudinal sample in terms of the original BASE age/cohort design is given in column 4 of Table 8. Column 4 of Table 9 shows the actual age distribution at the 1997-1998 assessment. The average time interval between baseline assessment and this fourth multidisciplinary intake assessment was 5.5 years (range 4.2-7.0 years). The average interval from the second multidisciplinary intake assessment was 3.6 years (range 2.7-4.4 years), and from the third multidisciplinary intake assessment 1.8 years (range 1.0-2.6 years). 80.5% of this sample also completed the Intensive Protocol at this measurement occasion. Minimal data on the Intake Assessment was obtained from an additional N = 6 (2.5% of survivors). 28.9% persons of the survivors did not participate in any level of the follow-up. Table 12 provides further demographic information on the participants who completed the Intake Assessment four times (1990-1993, 1993-1994, 1995-1996, and 1997-1998).

At the fifth multidisciplinary intake assessment (fourth repeat of the multidisciplinary intake assessment) (2000), N = 164 (31.8%) of the baseline sample were still alive. Of these, N = 88 (53.7%) participated fully in the initial session of the multidisciplinary assessment. This follow-up sample consisted of 36 men and 52 women. Frequency distribution of participants of this N = 88 longitudinal sample in terms of the original BASE age/cohort design is given in column 5 of Table 8. Column 5 of Table 9 shows the actual age distribution at the 2000 assessment. The average time interval between baseline assessment and this fifth multidisciplinary intake assessment was 8.9 years (range 7.2-10.5 years). The average interval from the second multidisciplinary intake assessment was 6.9 years (range 6.0-7.4 years), from the third multidisciplinary intake assessment 5.2 years (range 4.4-5.7 years), and from the fourth multidisciplinary intake assessment 3.4 years (range 2.8-3.7 years). 93.2% of this sample also completed the Intensive Protocol at this measurement occasion. Minimal data on the Intake Assessment was obtained from an additional N = XXX (XXX% of survivors). XXX% persons of the survivors did not participate in any level of the follow-up. Table 15 provides further demographic information on the participants who completed the Intake Assessment five times (1990-1993, 1993-1994, 1995-1996, 1997-1998, and 2000).

At the sixth multidisciplinary intake assessment (fifth repeat of the multidisciplinary intake assessment) (2004-2005), N = XXX (XXX%) of the baseline sample were still alive. Of these, N = 47 (XXX%) participated fully in the initial session of the multidisciplinary assessment. This follow-up sample consisted of 17 men and 30 women. Frequency distribution of participants of this N = 47 longitudinal sample in terms of the original BASE age/cohort design is given in column 6 of Table 8. Column 6 of Table 9 shows the actual age distribution at the 2004-2005 assessment. The average time interval between baseline assessment and this sixth multidisciplinary intake assessment was 13.0 years (range 11.3-14.5 years). The average interval from the second multidisciplinary intake assessment was 11.0 years (range 10.0-11.6 years), from the third multidisciplinary intake assessment 9.2 years (range 8.4-9.9 years), from the fourth multidisciplinary intake assessment 7.4 years (range 6.8-8.0 years), and from the fifth multidisciplinary intake assessment 4.1 years (range 3.6-4.5 years). 97.9% of this sample also completed the Intensive Protocol at this measurement occasion. Minimal data on the Intake Assessment was obtained from an additional N = XXX XXX% of survivors). XXX% persons of the survivors did not participate in any level of the follow-up. Table 16 provides further demographic information on the participants who completed the Intake Assessment six times (1990-1993, 1993-1994, 1995-1996, 1997-1998, 2000, and 2004-2005).

At the seventh multidisciplinary intake assessment (sixth repeat of the multidisciplinary intake assessment) (2005), N = XXX (XXX%) of the baseline sample were still alive. Of these, N = 38 (XXX%) participated fully in the initial session of the multidisciplinary assessment. This follow-up sample consisted of 15 men and 23 women. Frequency distribution of participants of this N = 38 longitudinal sample in terms of the original BASE age/cohort design is given in column 7 of Table 8. Column 7 of Table 9 shows the actual age distribution at the 2005 assessment. The average time interval between baseline assessment and this seventh multidisciplinary intake assessment was 13.9 years (range 12.4-15.2 years). The average interval from the second multidisciplinary intake assessment was 11.8 years (range 11.1-12.3 years), from the third multidisciplinary intake assessment 10.1 years (range 9.5-10.6 years), from the fourth multidisciplinary intake assessment 8.3 years (range 7.9-8.7 years), from the fifth multidisciplinary intake assessment 4.9 years (range 4.6-5.3 years), and from the sixth multidisciplinary intake assessment 0.8 years (range 0.4-1.5 years). 97.9% of this sample also completed the Intensive Protocol at this measurement occasion. Minimal data on the Intake Assessment was obtained from an additional N = XXX XXX% of survivors). XXX% persons of the survivors did not participate in any level of the follow-up. Table 17 provides further demographic information on the participants who completed the Intake Assessment seven times (1990-1993, 1993-1994, 1995-1996, 1997-1998, 2000, 2004-2005, and 2005).

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