Table 21. Percentage distribution of public elementary schools reporting the frequency with which the school calculated the students' body mass index and measured students' height and weight, by selected school characteristics: 2005

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Table 21. Percentage distribution of public elementary schools reporting the frequency with which the school calculated the students' body mass index and measured students' height and weight, by selected school characteristics: 2005 (Table 21—Continued)
	Body mass index
School characteristic	Never calculated	Calculated in selected grades only	Calculated yearly for all students	Other approach to calculate body mass index
All public elementary schools	66	16	16	3
Enrollment size
Less than 300	68	13	16	3
300 to 499	68	11	19	2
500 or more	62	23	12	3
School locale
City	62	20	15	2
Urban fringe	64	18	15	3
Town	77	6	15	‡
Rural	68	12	17	4
Region
Northeast	60	9	26	6
Southeast	57	20	22	‡
Central	79	9	10	2
West	63	23	11	3
Percent minority enrollment
Less than 6 percent	69	11	17	3!
6 to 20 percent	68	16	13	2
21 to 49 percent	63	16	18	4
50 percent or more	63	20	14	2
Percent of students eligible for free or reduced-price lunch
Less than 35 percent	65	17	15	3
35 to 49 percent	67	15	15	3
50 to 74 percent	68	14	16	2
75 percent or more	64	17	16	3
See notes at end of table.