Acculturation and 4-year caries increment among children of foreign-born mothers in Sweden: a register-based cohort study

Table 4 Caries increment between 3 and 7 years of age in relation to maternal background

Maternal background	Caries increment^a				Total
	Δ deft = 0		Δ deft ≥ 1		Total
	n	%	n	%	n	%
Non-immigrant
Swedish-born	40,792	82.4	8711	17.6	49,503	100
Immigrant (HDI of country of origin and age upon arrival in Sweden [years])
Low HDI
0–6	90	78.3	25	21.7	115	100
7–12	61	64.2	34	35.8	744	100
13–19	241	59.5	164	40.5	405	100
≥ 20	1042	56.0	820	44.0	1862	100
Total	1434	57.9	1043	42.1	2477	100
Medium HDI
0–6	509	66.2	260	33.8	769	100
7–12	442	58.1	319	41.9	761	100
13–19	738	47.7	809	52.3	1547	100
≥ 20	2948	51.0	2832	49.0	5780	100
Total	4637	52.4	4220	47.6	8857	100
High HDI
0–6	691	75.9	219	25.1	910	100
7–12	168	81.2	39	18.8	207	100
13–19	167	70.2	71	29.8	238	100
≥ 20	1204	78.9	322	21.1	1526	100
Total	2230	77.4	651	22.6	2881	100

^aCaries increment: The difference between deft at age 3 and deft at age 7 (∆ deft) was dichotomized as “no caries increment" (∆ deft = 0) or “caries increment” (∆ deft ≥ 1). No permanent teeth were included in the outcomes at age 7. HDI human development index; cut-offs: low = 0.350–0.449, medium = 0.450−0.699, high ≥ 0.700

ISSN: 1472-6831