Incidence of Tooth Loss in Adults: A 4-Year Population-Based Prospective Cohort Study

Table 2

Number of teeth lost by age group of adults for simple total and adults with incidence of tooth loss in 4 years of follow-up. Piracicaba, São Paulo, Brazil, 2011–2015.

Incidence of tooth loss	Total	Young adults	Older adults	value
	Mean (SD)	Mean (SD)	Mean (SD)
Simple total ()	0.91 (1.65)	0.67 (1.64)	1.14 (1.64)	0.008
Among adults with incidence ()	2.55 (1.86)	2.76 (2.33)	2.44 (1.60)	0.844

Mann–Whitney U test ().