Table.

Metropolitan area regression results for US only models (n=282) and combined Canada and US models (n=335)

Age group and model	Intercept	Median share (%)	Median income (US$1000)	Country dummy	Adjusted R2*
Infants
US only	1341†	−19.73†	—	—	0.03
US only with income	1386†	−19.35†	−1.6	—	0.02
US-Canada with dummy	1358†	−18.18†	−1.5	−280†	0.27
Child/youth
US only	110†	−2.49†	—	—	0.11
US only with income	116†	−2.43†	−0.20†	—	0.11
US-Canada with dummy	113†	−2.26†	−0.30†	−18†	0.35
Working age
US only	848†	−21.71†	—	—	0.33
US only with income	838†	−21.80†	0.40	—	0.34
US-Canada with dummy	826†	−20.92†	0.20	−67†	0.51
Elderly
US only	5255†	−20.58	—	—	0.01
US only with income	5547†	−18.03	−10.50†	—	0.03
US-Canada with dummy	5490†	−14.16	−11.20†	−399†	0.16
All ages
US only	1110†	−15.09†	—	—	0.13
US only with income	1141†	−14.82†	−1.10	—	0.12
US-Canada with dummy	1127†	−13.84†	−1.30†	−91†	0.34

^*Squared multiple correction. 

^†P<0.05.