Fig. 3.

Cumulative hazard for aneurysmal SAH during 13-year follow-up of the Health 2000 Survey participants. Separate lines were plotted for participants with severe periodontitis, periodontitis, and no periodontitis at baseline in a, and for participants with 0–2 teeth or ≥ 3 teeth affected by severe periodontitis (≥ 6 mm deep periodontal pocket) in b. Similarly, separate lines were plotted in c and d according to the extent of gingival inflammation, categorized according to the number of teeth sextants affected by gingival infection. The variables included in the Cox-regression are given in Table 3, as well as the corresponding hazard ratios and p values