Table 1.

Characteristics of the study participants, Porto Alegre, Brazil.

	Initial cohort†		6-year assessment‡
	%	Mean (SD)	%	Mean (SD)
Maternal and household variables
Maternal age at birth (years)		25.4 (6.7)		25.6 (6.5)
Maternal education (years)		8.5 (2.7)		8.8 (2.4)
Previous child	55.4		55.8
Social class ≤C§	79.8		79.8
Child variables
Intervention group in original trial	50.3		54.5
Male	52.4		50.6
Birth weight < 2.500 g	6.3		6.1
Birth height (cm)		49.0 (2.5)		49.0 (2.5)
Sugar consumption index at 6 months		5.0 (2.4)		5.0 (2.4)
Monthly sugar purchased per capita at 3 years (kg)		1.13 (1.04)		1.14 (1.20)
dmft ≥1 at 3 years	39.5		39.3
dmft at 3 years		1.54 (2.76)		1.51 (2.70)

^†n=715 at birth

^‡n=266; Sample size may be smaller for some variables due to missing data

^§Brazilian Association of Economic Research Institutes classification system; C or below indicates greater socioeconomic disadvantage

Abbreviations: SD, standard deviation; dmft, decayed (cavitated or noncavitated), missing due to caries, restored primary tooth index.