Table 1 Descriptive characteristics of study populations and analyzed samples (IOW and ELEMENT)
Discovery Cohort: IOW | Replication Cohort: ELEMENT | ||||||
|---|---|---|---|---|---|---|---|
Characteristic | Study Population ( N  = 750) | Analyzed Samples ( n  = 89) | Test Stat ( p -value) | Characteristic | Study Population ( N  = 275) | Analyzed Samples ( n  = 54) | Test Stat ( p -value) |
Age at T1: Mean (SD) | 18 (0) | 18 (0) | - | Age at T1: Mean (SD) | 14.5 (2.2) | 16.2 (1.3) | 5.61 (< .0001) |
Age at T2: Mean (SD) | 26 (0) | 26 (0) | - | Age at T2: Mean (SD) | 16.4 (2.2) | 19.2 (1.3) | -9.00 (< .0001) |
BMI change (T1 to T2): Mean (SD) | 1.58 (16.34) | 2.47 (3.49) | 0.78 (.4350) | BMI change (T1 to T2): Mean (SD) | 1.40 (1.68) | 1.15 (3.81) | 1.22 (0.2250) |
Smoking Cluster at T1: N (%) | Â | Â | 4.62 (.2020) | Smoking Cluster at T1: N (%) | Â | Â | 20.75 (.0001) |
1 – non active and non-passive smokers at T1 | 185 (32.92%) | 21 (23.60%) | 1 – non active and non-passive smokers at T1 | 195 (71.69%) | 41 (85.42%) | ||
2 – passive and non-active smokers at T1 | 238 (42.35%) | 48 (53.93%) | 2 – passive and non-active smokers at T1 | 59 (21.45%) | 0 | ||
3 – active and non-passive smokers at T1 | 7 (1.12%) | 1 (1.12%) | 3 – active and non-passive smokers at T1 | 7 (2.55%) | 0 | ||
4 – active and passive smokers at T1 | 132 (21.35%) | 19 (21.35%) | 4 – active and passive smokers at T1 | 11 (4.04%) | 7 (14.58%) | ||
SES Status at T1: N (%) | Â | Â | 4.25 (.1194) | SES Status at T1: N (%) | Â | Â | 6.06 (.1085) |
1 – high income, median housing, low education | 161 (29.70%) | 30 (34.88%) | 1 – AMAI Score A/B | 14 (5.09%) | 0 (0.00%) | ||
2 – median income, high housing, high education | 215 (39.67%) | 39 (45.35%) | 2 – AMAI Score C | 126 (45.82%) | 33 (61.11%) | ||
3 – low income, low housing, median education | 166 (30.63%) | 17 (19.77%) | 3 – AMAI Score D | 102 (37.09%) | 15 (27.78%) | ||
|  |  |  |  | 4 – AMAI Score E/F | 33 (12.00%) | 6 (11.11%) | |