Table 3.

Sensitivity analysis of case-control model for Parkinson’s disease.

Annual Dental Scaling without PID	aOR	95% CI	p-Value
Within 1 year before index date	0.974	0.731–1.297	0.856
2 consecutive years before index date	0.742	0.464–1.187	0.213
3 consecutive years before index date	0.479	0.23–0.998	0.049
4 consecutive years before index date	0.233	0.07–0.774	0.017
5 consecutive years before index date	0.204	0.05–0.886	0.034

PID: Periodontal inflammatory disease; aOR: Adjust odds ratio; CI: Confidence interval.