Table 3.

Twelve-month national prevalence estimates adjusting for inclusion errors

Explicit homelessness	Age group	Initial rate	95% Confidence intervals	Final estimate, % (12% inclusion error reduction)	Final estimate, N (12% inclusion error reduction)
Household	13–17	3.4%	3.0%–3.8%	3.0%	.46 million
Household	18–25	6.7%	6.3%–7.2%	5.9%	1.13 million
Population	18–25	5.9%	5.2%–6.6%	5.2%	1.87 million
Couch surfing only	Age group	Initial rate	95% Confidence intervals	Final estimate, % (54% inclusion error reduction)	Final estimate, N (54% inclusion error reduction)
Household	13–17	2.8%	2.5%–3.1%	1.3%	.20 million
Household	18–25	14.3%	13.7%–14.9%	6.6%	1.27 million
Population	18–25	9.7%	8.9%–10.5%	4.5%	1.61 million
Overall	Age group	Initial rate	95% Confidence intervals	Final estimate, % (sum of above prevalence types with inclusion error reductions)	Final estimate, N (sum of above prevalence types with inclusion error reductions)
Household	13–17	5.3%	4.9%–5.8%	4.3%	.66 million
Household	18–25	21.0%	20.3%–21.7%	12.5%	2.40 million
Population	18–25	15.6%	14.6%–16.6%	9.7%	3.48 million

Notes: For ages 13–17, the “explicit homelessness” estimates include experiences of having ran away and been asked to leave; for both ages 13–17 and 18–25 it includes “yes” responses to the explicit question on homelessness experiences. The revised estimates for “explicit” use a smaller deduction (12%) because this was the inclusion error rate calculated for this subgroup of experiences based on follow-up interviews. The revised estimates for “couch surfing only” use a larger deduction (54%) because this was the inclusion error rate calculated for this subgroup of experiences, which included a high proportion of experiences that were not couch surfing as a form of homelessness—that is, the young people did not lack a safe and stable place to stay.