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Table 1 Comparison of characteristics between those with a respondent reported birth weight vs. those without a respondent reported birth weight

From: Reliability of birth weight recall by parent or guardian respondents in a study of healthy adolescents

Adolescent characteristic

Respondent reported birth weight

No respondent reported birth weight

p-value

N = 309

N = 24

Age (years)

16.4 ± 1.0

16.4 ± 1.1

0.863

Male gender

142 (46.0%)

10 (41.7%)

0.685

Black

169 (54.7%)

15 (62.5%)

0.459

Urban

136 (44.2%)

6 (25.0%)

0.068

Residential education level

82.3 ± 12.0a

79.6 ± 6.6b

0.086

Body mass index (kg/m2)

25.0 ± 6.4

23.3 ± 5.1

0.247

Body mass index (≥ 85th percentile)

120 (38.8%)

7 (29.2%)

0.348

Respondent biological parent

291 (94.2%)

15 (65.2%)c

<0.001*

Respondent type

 Mother

268 (86.7%)

11 (47.8%)

<0.001*

 Father

23 (7.4%)

4 (17.4%)

 Other

18 (5.8%)

8 (34.8%)

Number with birth weight available in medical chart

236 (76.4%)

16 (66.7%)

0.286

Birth weight from medical chart (g)

3190.6 ± 689.4

3490.6 ± 359.1

0.079

  1. * p-value for F-statistic
  2. aN = 275 reporting residential education level information
  3. bN = 17 reporting residential education level information
  4. cN = 23 reporting biological parent information