TABLE 3

Adjusted Mean Difference (95% CI) in Fall PALS-K Summary Score by Participant Characteristics From a Multiple Linear Regression Model

Mean Difference95% CI
BLL
 0–4 µg/dL0.00Reference
 5–9 µg/dL−4.51−6.16 to –2.85
 ≥10 µg/dL−10.13−13.30 to −6.96
Gender
 Female0.00Reference
 Male−2.80−4.31 to −1.30
Year
 2004–20050.00Reference
 2005–20063.531.58 to 5.49
 2006–20073.711.74 to 5.69
Age group
 <5 years, 3 months0.00Reference
 5 years, 3 months, to <5 years, 6 months2.680.60 to 4.77
 5 years, 6 months, to <5 years, 9 months6.574.49 to 8.65
 ≥5 years, 9 months8.266.03 to 10.49
Race
 Hispanic0.00Reference
 White6.854.23 to 9.47
 Black6.053.77 to 8.32
 Other2.51−1.18 to 6.20*
Language
 English0.00Reference
 Spanish−8.43−10.41 to −6.44
 Other−12.74−17.91 to −7.57
Free/reduced/pay lunch status
 Pay for lunch0.00Reference
 Reduced lunch−4.18−7.56 to −0.80
 Free lunch−10.31−12.91 to −7.71
Constanta50.4146.37 to 54.45
R20.1345
  • Final model adjusted for GM BLL category, gender, year, age at time of test, race, child language, and free/reduced lunch status.

  • a Refers to the average score for a 5- to 5-1/4-year-old Hispanic female, speaking English, who pays for lunch, and with a BLL of 0 to 4 µg/dL in 2004–2005.

  • * P = .182.