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. 2017 Jun 13;7(5):e013601. doi: 10.1136/bmjopen-2016-013601

Table 2.

Marginal models examining the effect of social service and public health spending per individual living in poverty on teenage birth rates, adjusted for state characteristics

B (95% CI)
Overall sample (n=250) Sample without AK and WY (n=240)
Unadjusted Adjusted Unadjusted Adjusted
Social spending rate†
 Linear effect −0.61 (−0.66 to −0.56)** −0.20 (−0.31 to −0.08)** −0.65 (−0.70 to −0.61)** −0.45 (−0.57 to −0.33)**
 Quadratic effect 0.01 (0.01 to 0.01)** 0.003 (0.002 to 0.005)** 0.01 (0.01 to 0.01)** 0.007 (0.005 to 0.009)**
% Under 18 2.58 (1.84 to 3.33)** 0.68 (0.25 to 1.10)** 2.65 (1.87 to 3.42)** 0.52 (0.11 to −0.93)*
% Female −1.32 (−3.29 to 0.65) −1.35 (−3.10 to 0.39) −0.85 (−3.34 to 1.64) 0.09 (−1.69 to 1.87)
% Non-Hispanic White −0.23 (−0.35 to −0.12)** −0.06 (−0.12 to 0.01) −0.25 (−0.36 to −0.13)** −0.12 (−0.18 to −0.05)**
% Non-Hispanic Black 0.40 (0.25 to 0.54)** −0.19 (−0.34 to −0.04)* 0.43 (0.29 to 0.58)** −0.19 (−0.33 to −0.06)**
% Hispanic 0.24 (0.09 to 0.38)** −0.07 (−0.17 to 0.03) 0.25 (0.10 to 0.39)** 0.04 (−0.06 to 0.14)
% Children living in single-parent home 1.21 (0.96 to 1.46)** 0.92 (0.67 to 1.17)** 1.25 (1.00 to 1.50)** 0.68 (0.43 to 0.94)**
% Individuals with a high school diploma −1.98 (−2.29 to −1.67)** −0.94 (−1.23 to −0.65)** −2.22 (−2.52 to −1.91)** −0.66 (−0.93 to −0.39)**
Unemployment rate −0.54 (−1.26 to 0.17) −0.38 (−0.72 to −0.03)* −0.51 (−1.25 to 0.23) −0.69 (−1.00 to −0.37)**
% Individuals living below poverty 2.68 (2.35 to 3.02)** 0.49 (−0.16 to 1.15) 2.93 (2.61 to 3.25)** −0.22 (−0.85 to 0.40)
% Urban −0.16 (−0.25 to −0.06)** −0.05 (−0.12 to 0.02) −0.15 (−0.25 to −0.05)** −0.03 (−0.09 to 0.03)
log(GDP/capita) −44.08 (−50.93 to −37.23)** 15.71 (4.24 to 27.18)** −53.43 (−60.16 to −46.70)** 5.83 (−4.71 to 16.36)
Medicaid −0.02 (−0.03 to 0.00) −0.02 (−0.03 to −0.01)** −0.01 (−0.03 to 0.00) −0.02 (−0.03 to −0.02)**
Region
 New England −25.91 (−28.90 to −22.92)** −10.24 (−13.18 to −7.31)** −25.91 (−28.88 to −22.95)** −6.06 (−8.95 to −3.16)**
 Mideast −18.79 (−21.98 to 15.61)** −3.29 (−5.97 to −0.60)* −18.79 (−21.95 to −15.64)** 0.75 (−1.88 to 3.39)
 Great Lakes −12.33 (−15.52 to 9.15)** 0.05 (−2.30 to 2.40) −12.33 (−15.49 to −9.18)** 1.95 (−0.24 to 4.14)
 Plains −12.96 (−15.80 to −10.12)** 0.32 (−2.10 to 2.75) −12.96 (−15.78 to −10.14)** 1.75 (−0.50 to 4.00)
 Southeast REF REF REF REF
 Southwest 7.65 (4.19 to 11.10)** 6.05 (2.82 to 9.28)** 7.65 (4.22 to 11.07)** 3.70 (0.76 to 6.64)*
 Rocky Mountain −10.38 (−13.56 to −7.20)** 2.87 (−0.32 to 6.06) −12.11 (−15.54 to −8.69)** −0.27 (−3.48 to 2.94)
 Far West −10.48 (−13.46 to −7.49)** −1.31 (−4.41 to 1.80) −11.47 (−14.63 to −8.32)** 0.26 (−2.57 to 3.08)
Year −2.50 (−3.47 to −1.53)** −2.25 (−2.68 to −1.82)** −2.49 (0.51)** −1.24 (−1.70 to −0.78)**

*p Value <0.05; **p value <0.01.

State characteristics, including social spending, were lagged 2 years.

†Social spending rate was centred at its mean; unit is per US$1000.

AK, Arkansas; GDP, gross domestic product; WY, Wyoming.