Table 5 Comparison of relative risk (RR) estimates for related injury mortality rates across ACS survey cycles, 2006–2013

% US residency less than 1 year

Annual cycle

1.29 (0.93–1.77)

1.27 (1.01–1.58)

1.42 (1.18–1.171)

1.05 (0.66–1.66)

1.26 (1.07–1.49)

1.22 (0.93–1.59)

1.08 (0.91–1.28)

1.29 (1.15–1.46)

3-year cycle

--

1.07 (0.92–1.25)

1.15 (1.04–1.28)

1.07 (0.95–1.20)

1.66 (1.14–2.41)

0.98 (0.78–1.21)

0.90 (0.69–1.17)

1.33 (1.16–1.53)

5-year cycle

--

--

--

1.09 (0.71–1.67)

1.29 (1.14–1.47)

1.05 (0.51–2.19)

0.84 (0.57–1.24)

1.04 (0.71–1.52)

Annual cycle

1.28 (1.02–1.61)

0.87 (0.76–0.98)

1.05 (0.88–1.25)

1.05 (0.94–1.18)

1.14 (1.01–1.29)

1.01 (0.85–1.19)

1.17 (0.95–1.46)

0.82 (0.73–0.92)

% college/postgraduate degree

3-year cycle

--

0.89 (0.78–1.01)

1.23 (1.10–1.38)

0.92 (0.82–1.02)

0.91 (0.81–1.02)

1.18 (1.05–1.32)

1.13 (0.82–1.57)

0.79 (0.58–1.08)

5-year cycle

--

--

--

1.16 (1.02–1.31)

1.01 (0.90–1.15)

1.13 (1.01–1.29)

1.31 (0.91–1.87)

0.84 (0.57–1.25)

Annual cycle

1.02 (0.75–1.40)

0.90 (0.61–1.34)

1.13 (0.64–1.97)

1.55 (1.37–1.74)

1.16 (1.03–1.31)

1.02 (0.90–1.15)

0.88 (0.49–1.56)

1.25 (0.75–2.08)

% high school graduates

3-year cycle

--

1.24 (0.88–1.76)

1.16 (1.04–1.32)

1.30 (0.90–1.88)

1.40 (1.05–1.86)

0.81 (0.67–0.99)

0.86 (0.76–0.97)

1.40 (1.23–1.59)

5-year

--

--

--

1.31 (1.14–1.49)

1.25 (0.95–1.66)

0.96 (0.75–1.24)

0.91 (0.52–1.60)

1.27 (1.11–1.46)

Annual cycle

1.08 (0.90–1.30)

1.07 (0.94–1.21)

0.94 (0.65–1.36)

0.88 (0.70–1.09)

1.02 (0.79–1.32)

0.88 (0.74–1.03)

0.86 (0.76–0.98)

0.56 (0.42–0.75)

% African American

3-year cycle

--

1.04 (0.90–1.20)

1.10 (0.78–1.56)

1.25 (0.97–1.61)

1.00 (0.75–1.31)

0.92 (0.81–1.04)

0.94 (0.77–1.15)

0.67 (0.53–0.85)

5-year

--

--

--

1.08 (0.92–1.27)

0.98 (0.74–1.26)

0.87 (0.78–0.97)

0.71 (0.63–0.79)

0.80 (0.68–0.94)

Annual cycle

1.56 (1.29–1.89)

1.14 (0.86–1.50)

1.53 (1.04–2.25)

1.58 (1.39–1.79)

1.44 (0.87–2.38)

1.49 (0.77–2.89)

1.09 (0.75–1.57)

1.62 (1.37–1.92)

% Hispanic

3-year cycle

--

1.05 (0.91–1.20)

1.10 (0.97–1.25)

1.39 (1.24–1.56)

1.44 (1.28–1.62)

0.98 (0.87–1.09)

1.06 (0.87–1.30)

1.38 (0.90–2.11)

5-year cycle

--

--

--

1.27 (1.13–1.43)

1.35 (1.20–1.52)

1.18 (1.05–1.33)

1.13 (0.75–1.69)

1.22 (0.72–2.08)

Annual cycle

1.26 (1.11–1.43)

1.00 (0.59–1.70)

0.95 (0.84–1.07)

1.08 (0.96–1.22)

1.42 (1.07–1.88)

0.92 (0.62–1.37)

0.79 (0.49–1.26)

1.02 (0.91–1.16)

% non-white

3-year cycle

--

1.30 (0.78–2.18)

1.15 (0.84–1.57)

1.47 (0.76–2.85)

1.34 (0.91–1.96)

0.83 (0.74–0.94)

0.82 (0.68–1.00)

1.09 (0.77–1.53)

5-year cycle

--

--

--

1.24 (1.11–1.39)

1.44 (0.88–2.32)

0.86 (0.77–0.97)

1.02 (0.91–1.15)

1.04 (0.61–1.79)

Annual cycle

0.74 (0.52–1.07)

1.13 (1.00–1.28)

0.95 (0.54–1.67)

1.09 (0.79–1.50)

1.31 (1.04–1.65)

0.93 (0.71–1.22)

1.37 (1.00–1.86)

1.24 (0.80–1.92)

Gini coefficient

3-year cycle

--

1.25 (1.11–1.41)

1.25 (0.97–1.61)

1.36 (0.77–2.40)

1.38 (0.77–2.48)

1.02 (0.55–1.93)

1.18 (1.06–1.33)

1.19 (0.92–1.54)

5-year

--

--

--

1.45 (0.80–2.62)

1.35 (0.80–2.26)

1.10 (0.71–1.70)

1.09 (0.98–1.22)

1.24 (1.11–1.38)

Annual cycle

0.84 (0.56–1.28)

0.63 (0.40–0.98)

0.98 (0.81–1.20)

1.06 (0.88–1.30)

1.09 (0.94–1.27)

1.17 (1.04–1.32)

1.29 (0.95–1.74)

0.73 (0.49–1.08)

Median household income

3-year cycle

--

0.78 (0.56–1.08)

1.22 (0.84–1.77)

1.21 (0.71–2.05)

1.05 (0.86–1.27)

1.30 (1.09–1.54)

1.23 (1.09–1.54)

0.67 (0.42–1.09)

5-year cycle

--

--

--

1.17 (0.95–1.45)

1.00 (0.83–1.20)

1.21 (1.09–1.37)

1.24 (0.92–1.67)

0.74 (0.60–0.92)

Annual cycle

0.83 (0.39–1.78)

0.62 (0.31–1.26)

1.73 (0.94–3.16)

0.99 (0.53–1.85)

1.77 (0.88–3.57)

1.70 (0.91–3.16)

1.24 (0.65–2.36)

0.87 (0.47–1.62)

% Unemployment

3-year cycle

--

0.75 (0.55–1.03)

1.24 (1.12–1.38)

1.09 (0.82–1.44)

1.21 (1.01–1.44)

0.97 (0.67–1.40)

1.19 (1.02–1.39)

0.93 (0.83–1.04)

5-year cycle

--

--

--

0.74 (0.53–1.02)

1.06 (0.92–1.22)

1.12 (0.77–1.61)

1.29 (1.16–1.45)

1.02 (0.87–1.20)

Annual cycle

0.99 (0.75–1.31)

0.89 (0.44–1.79)

0.94 (0.70–1.26)

1.09 (0.95–1.25)

0.99 (0.86–1.14)

0.89 (0.77–1.03)

1.09 (0.94–1.26)

0.76 (0.46–1.24)

County population

3-year cycle

--

1.07 (0.92–1.25)

0.96 (0.83–1.11)

1.13 (0.67–1.92)

1.10 (0.95–1.27)

1.66 (1.03–2.70)

1.08 (0.55–2.10)

0.72 (0.62–0.85)

5-year

--

--

--

1.27 (0.63–2.54)

1.35 (0.96–1.90)

1.48 (0.88–2.47)

1.06 (0.72–1.56)

0.86 (0.73–1.03)