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. 2025 Dec 1;37(6):e20240267. doi: 10.1590/2317-1782/e20240267en

Table 4. Association of habitual tongue and lip posture in the first assessment with exclusive and supplemented breastfeeding in the sixth month and with breastfeeding in the twelfth month.

Variable EBF in the sixth month (n=33) BF in the sixth month (n=33) BF in the first year (n=20)
Yes n (%) No n (%) p-value Yes n (%) No n (%) p-value Yes n (%) No n (%) *p-value
Habitual lip posture
Open lips 2 (28.6) 17 (65.4) 0.072 14 (58.4) 5 (55.6) 0.968 6 (85.7) 8 (61.5) 0.193
Parted lips 3 (42.8) 8 (30.8) 8 (33.3) 3 (33.3) 1 (14.3) 1 (7.7)
Closed lips 2 (28.6) 1 (3.8) 2 (8.3) 1 (11.1) 0 (0) 4 (30.8)
Habitual tongue posture
Within the oral cavity 4 (57.1) 7 (26.9) 0.313 8 (33.3) 3 (33.3) 0.907 2 (28.6) 4 (30.8) 0.326
Between alveolar ridges 2 (28.6) 11 (42.3) 9 (37.5) 4 (44.5) 1 (14.3) 6 (46.2)
Over the lower lip 1 (14.3) 8 (30.8) 7 (29.2) 2 (22.2) 4 (57.1) 3 (23)

Pearson's chi-square test

*

Significant p-value ≤ 0.05

Caption: EBF = exclusive breastfeeding; BF = breastfeeding; n = absolute frequency; % = relative frequency