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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Soc Sci Med. 2014 Feb 14;107:136–144. doi: 10.1016/j.socscimed.2014.02.020

Table 3.

IOW Mediation of the adolescent MTO treatment-asthma diagnosis association; direct and indirect effects.

Mediator domains Direct effect
Indirect effect
% Change
N
b SE p b SE p % Changeb LCI UCI
Mental healtha 0.2482 0.137 0.070 −0.0047 0.031 0.882 1.9% −126.3% 130.1% 2812
Smoking 0.2279 0.139 0.100 −0.0141 0.029 0.623 6.6% −908.6% 921.8% 2693
Housing disarray 0.2871 0.142 0.043 −0.0200 0.031 0.520 7.5% −61.4% 76.4% 2534
Housing quality observed 0.2389 0.132 0.070 −0.0044 0.037 0.906 1.9% −146.5% 150.3% 2575
Housing quality adult report 0.2686 0.135 0.047 −0.0445 0.032 0.160 19.9% −289.8% 329.6% 2727
Housing hardship 0.2270 0.129 0.078 0.0037 0.035 0.916 −1.6% −454.4% 451.2% 2684
Housing mobility 0.2702 0.142 0.056 −0.0266 0.042 0.527 10.9% −173.0% 194.9% 2812
a

We tested a model including generalized anxiety disorder as a mediator; results were similar, with a percent change of −1.4%.

b

% change indicates the % change from the total to the direct effect. Positive values indicate an increase, or a countervailing mediation effect, and negative values indicate a decrease, or mediation in the expected direction, in the direct effect compared to the total effect. The total effect of MTO treatment on asthma diagnosis was b(SE) = 0.244(0.131), p = 0.062.