Table 4.

Rate ratios (RRs) of visits and influenza vaccinations, stratified by number of residential moves

	Visits
	0 moves (n=15 597) RR (95% CI)	1–2 Moves (n=7436) RR (95% CI)	≥3 Moves (n=740) RR (95% CI)
Mobility group
Always low	Ref	Ref	Ref
Always high	1.10 (1.03 to 1.18)	1.04 (0.95 to 1.14)	1.12 (0.91 to 1.39)
High to low	N/A	0.97 (0.91 to 1.04)	1.03 (0.83 to 1.27)
Low to high	N/A	1.02 (0.95 to 1.09)	1.15 (0.92 to 1.44)
Varied	N/A	0.96 (0.88 to 1.06)	1.10 (0.94 to 1.30)

	Influenza vaccinations
	0 moves (n=13 544) RR (95% CI)	1–2 moves (n=6747) RR (95% CI)	≥3 moves (n=693) RR (95% CI)
Mobility group
Always low	Ref	Ref	Ref
Always high	1.12 (1.02 to 1.22)	1.15 (1.03 to 1.29)	1.28 (1.02 to 1.60)
High to low	N/A	1.05 (0.96 to 1.14)	1.06 (0.81 to 1.38)
Low to high	N/A	1.06 (0.97 to 1.15)	1.14 (0.84 to 1.54)
Varied	N/A	1.05 (0.91 to 1.20)	1.23 (1.01 to 1.49)

Models adjusted for race/ethnicity, age at first visit, sex, insurance type, BMI, income. Vaccination model also adjusted for visits per year.

Bold values indicate statistical significance.

BMI, body mass index; N/A, not available.