Replication study in additional German sample: Results of the comparison of Q0 carrier state for the <i>C4L</i> gene (absolute numbers are in parentheses).

For abbreviations see legend to Table 2. p_trend: p value for trend test of C4B*Q0 frequencies in all four age groups (Armitage trend test; secondary endpoint). *Due to the small number of centenarians in the replication sample we did not subdivide the case sample into a nonagenarian and centenarian subgroup.