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Table 5 Caries increment according to maternal age upon arrival and length of stay in Sweden

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

HDI of maternal country of origin and age upon arrival in Sweden (years)

Reference

Maternal age upon arrival in Sweden (0–6 years)

Maternal length of stay in Sweden (≥ 20 years)

Maternal age upon arrival in

Sweden (0–6 years)

n

IRR

(95% CI)

p

n

IRR

(95% CI)

p

n

IRR

(95% CI)

p

Low HDI

Model I(a)

BIC’ = 68.65

Model II(a)

BIC’ = 71.62

Model III(a)

BIC’ = 75.86

0–6

115

1

1 199

1.52

(1.10:2.10)

0.011

115

1

7–12

95

1.51

(0.90:2.54)

0.120

844

1.44

(1.04:1.99)

0.030

95

1.55 (0.90:2.66)

0.113

13–19

405

1.65

(1.08:2.53)

0.021

241

1.56

(1.09:2.24)

0.016

405

1.73 (1.04:2.88)

0.036

 ≥ 20

1862

1.83

(1.22:2.74)

0.003

163

1

1832

1.95 (1.10:3.45)

0.022

Medium HDI

Model I(b)

BIC’ = − 82.60

Model II(b)

BIC’ = − 72.97

Model III(b)

BIC’ = − 75.69

0–6

769

1

4311

1.30

(1.17:1.45)

 < 0.001

769

1

7–12

761

1.25

(1.06:1.47)

0.008

2135

1.29

(1.15:1.45)

 < 0.001

761

1.22 (1.02:1.45)

0.027

13–19

1547

1.44

(1.25:1.65)

 < 0.001

1239

1.21

(1.06:1.37)

0.005

1547

1.36 (1.13:1.64)

0.001

 ≥ 20

5780

1.43

(1.26:1.63)

0.002

1117

1

5725

1.31 (1.05:1.65)

0.018

High HDI

Model I(c)

BIC’ = 50.41

Model II(c)

BIC’ = 51.93

Model III(c)

BIC’ = 57.76

0–6

910

1

863

0.87

(0.72:1.05)

0.147

910

1

7–12

207

0.84

(0.58:1.21)

0.345

513

0.88

(0.70:1.10)

0.268

207

0.84 (0.58:1.21)

0.345

13–19

238

1.25

(0.83:1.87)

0.286

321

1.03

(0.81:1.32)

0.810

238

1.25 (0.83:1.87)

0.286

 ≥ 20

1526

1.05

(0.62:1.77)

0.867

1158

1

1500

1.05 (0.62:1.77)

0.867

  1. HDI human development index; cut-offs: low = 0.350–0.449, medium = 0.450−0.699, high ≥ 0.700; BIC’, Bayesian Information Criterion; In bold: the best model (smallest BIC’); Model I—adjusted: sex, maternal age at childbirth, family situation, income; Model II—adjusted: sex, maternal age at childbirth, family situation, income; Model III—adjusted: mother’s length of stay in Sweden at childbirth, sex, maternal age at childbirth, family situation, income