Self efficacy for fruit, vegetable and water intakes: Expanded and abbreviated scales from item response modeling analyses

Table 2 Participant Characteristics

Characteristic	Missing data status group
	Missing all SE data	Some or complete SE data with or without social desirability and dietary data
Total^a	278 (29.5)	664 (70.5)
Gender
Male	144 (51.8)	325 (48.9)
Female	134 (48.2)	329 (49.5)
Missing^b	0 (0.0)	10 (1.5)
Race/Ethnicity*
White	28 (10.1)	96 (14.5)
Black	62 (22.3)	181 (27.3)
Hispanic	159 (57.2)	325 (48.9)
Other	28 (10.1)	50 (7.5)
Missing^b	1 (0.4)	12 (1.8)
Highest education for head of household n(%)
HS graduate or less	158 (56.8)	311 (46.8)
Some college or specialized training	70 (25.2)	184 (27.7)
College graduate	39 (14.0)	80 (12.0)
Missing^b	11 (4.0)	89 (13.4)
Age (in years) n: M (SD)	278: 11.3 (0.6)	654: 11.3 (0.6)
BMI%tile n: M (SD)	275: 73.7 (28.3)	654: 70.7 (28.0)

^aTotal percents are displayed as row percents; remaining percents displayed as column percents
^bMissing not included in chi-square test of association
*Significant [X²(3) = 8.76, p = 0.033] between missing data status and race/ethnicity; however, the contingency coefficient (C = 0.10) showed that the association was small. Hispanic participants [OR = 1.7 (1.1, 2.7)] and Other race/ethnicity participants [OR = 1.9 (1.0, 3.6)] were significantly more likely to have missing SE data

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