National Survey of Children’s Health Questionnaires, Datasets, and Supporting Documents

NSCH Crosswalk provides a view of all survey changes since 2016.

2021

Questionnaires

2020

Questionnaires

Supporting Documents

Methodology and Data User FAQs

Variable Lists and Frequencies

Data Guide

2019

Questionnaires

Supporting Documents

2018

Questionnaires

Supporting Documents

2017

Questionnaires

Supporting Documents

2016

Questionnaires

Supporting Documents

A Note on Sample Size

In both individual year and multi-year analyses, the NSCH sample size may be limited for smaller populations (e.g., American Indian (AI) /Alaska Native (AN)) and state-level subgroups or rare outcomes (e.g., adolescent children with special health care needs (CSHCN) or autism in a particular state).

Small sample sizes may produce unstable estimates.

To minimize misinterpretation, we recommend only presenting statistics with a sample size or unweighted denominator of 30 or more.

Additionally, if the 95% confidence interval width exceeds 20 percentage points or 1.2 times the estimate (≈ relative standard error>30%), we recommend flagging for poor reliability and/or presenting a measure of statistical reliability (e.g., confidence intervals or statistical significance testing) to promote appropriate interpretation.

Date Last Reviewed:  October 2021