Table 3.

Secondary (subset) analyses of the hazard of T2D by age at highest registered DCS and GS, duration, and severity over time of DC and gingivitis

	Males		Females
	HR (CI)	P	HR (CI)	P
DC
Age at highest registered DCS
Below age 12	1.00 (ref)	-	1.00 (ref)	-
Age 12 or above	1.01 (0.84; 1.22)	0.91	1.10 (0.89; 1.35)	0.37
DCS over time
Low	1.00 (ref)	–	1.00 (ref)	–
Moderate	1.32 (1.07; 1.64)	0.01	0.91 (0.72; 1.14)	0.39
High—Severe	1.28 (0.95; 1.71)	0.10	0.89 (0.64; 1.24)	0.49
DC duration
Up to 2 periods in time	1.00 (ref)	–	1.00 (ref)	–
3 periods in time	1.07 (0.89; 1.29)	0.47	1.09 (0.89; 1.35)	0.40
Gingivitis
Age at highest registered GS
Below age 12	1.00 (ref)	–	1.00 (ref)	–
Age 12 or above	1.25 (1.08; 1.45)	0.003	1.37 (1.13; 1.65)	< 0.001
GS over time
Low	1.00 (ref)	–	1.00 (ref)	–
Moderate	1.19 (1.004; 1.42)	0.04	1.11 (0.94; 1.32)	0.23
High	1.61 (1.19; 2.16)	0.002	1.41 (0.93; 2.15)	0.10
Gingivitis duration
Up to 2 periods in time	1.00 (ref)	–	1.00 (ref)	–
3 periods in time	1.24 (1.06; 1.45)	0.008	1.06 (0.89; 1.26)	0.47

Highest achieved level of education (observed between 25 and 30 years) used as strata. Testing at a 95% confidence level

CI confidence interval, DCS dental caries score, GS gingivitis score, HR hazard ratio, P p-value