Table 2.
Number of records according to age-groups used in the preliminary analysis
| Group 1 | Group 2 | Group 3 | Total | |
|---|---|---|---|---|
| Age ≤ 750 | 750 < Age ≤ 1100 | Age > 1100 | ||
| First records | 39,265 | 16,412 | 61,665 | 117,342 |
| (a) R | ||||
| n | 407 | 443 | 1854 | 2704 |
| dc (SD) | 14.70 (11.61) | 10.58 (7.05) | 9.78 (6.83) | |
| (b) NR and IR | ||||
| n | 38,858 | 15,969 | 59,811 | 114,638 |
| dc (SD) | −0.15 (1.05) | −0.18 (1.32) | −0.13 (1.32) |
Number of records in each of the age-groups after retaining only the first records where (a) is the number of reactors with dc > 4 and with corresponding mean dc values for each of the age-groups, and (b) is the number of non-reactors with dc ≤ 4 and with corresponding mean dc values in each of the age-groups