Table 2 Summary of findings of the logistic regression analysis of the number of remaining teeth at the baseline and the incident depression follow-up 1 (2 years) and follow-up 2 (4 years)

none

1.06 (0.70–1.62)

0.93 (0.59–1.47)

2.16 (0.69–6.74)

1–9

1.13 (0.82–1.56)

1.01 (0.71–1.44)

2.07 (0.91–4.72)

10–19

1.29 (1.00-1.66)

1.12 (0.84–1.48)

2.44 (1.33–4.50)

≥ 20

1

1

1

follow-up 2 (4 years) Incident Depression

none

2.24 (1.35–3.72)

2.56 (1.50–4.39)

0.79 (0.15–4.13)

1–9

1.45 (0.97–2.17)

1.56 (1.02–2.40)

0.87 (0.29–2.67)

10–19

1.16 (0.84–1.61)

1.27 (0.90–1.81)

0.62 (0.25–1.54)

≥ 20

1

1

1