TABLE 4.

Relative risk and 95% confidence interval for losing >three teeth during 5-year period and 10% of sites with ≥3 mm attachment loss increase (n = 363) during 3-year period for the PDS dataset and for 10-year tooth loss (≥three teeth) for DARIC dataset stratified by IPC

PDS Dataset	Tooth Loss	Attachment Loss
IPC Low (0–10)	Ref	Ref
IPC Moderate (11–20)	3.21 (0.85–12.1)	0.69 (0.21–2.28)
IPC High (> 20)	5.83 (1.64–20.7)	2.51 (0.96–6.58)
DARIC Dataset	Tooth Loss (≥three teeth)
IPC Low (0–10)	Ref
IPC Moderate (11–20)	2.36 (1.81–3.07)
IPC High (> 20)	5.55 (3.50–5.92)

The PDS estimates were weighted for study design.

PDS, Piedmont Dental Study; DARIC, Dental Atherosclerosis in Communities Study; IPC, index of profile classes.