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Table 2 Multilevel regression analyses1

From: “Happiness in the air?” the effects of air pollution on adolescent happiness

  Model1 Model2 Model3
Intercept 2.92(.02)** 2.92(.02)** 2.92(.02)**
PM2.5 −.02(.006)*   
PM10   −.01(.003)*  
NO2    −.013(.006)*
% of college graduates −.002(.003) −.003(.003) .001(.003)
Population densitya
Mutuality −.17(.13) −.24(.15)† −.11(.12)
Male .05(.04) −.04(.04) −.04(.04)
Family incomea
Non-intact family −.09(.05)† −.09(.05)† −.09(.05)†
Wave 1 Class rank .009(.013) .008(.01) .009(.013)
Wave 1 Negative life event −.02(.01)** −.02(.01)** −.02(.01)**
Wave 1 Low family cohesion −.08(.03)** −.08(.03)** −.08(.03)**
Wave 1 Self-esteem .03(.004)** .03(.004)** .03(.004)**
Wave 1 Negative emotion −.10(.03)** −.10(.03)** −.10(.03)**
Wave 1 deviance −.003(.02) −.003(.02) −.003(.02)
Wave 1 Low Friends’ support −.11(.04)** −.11(.04)** −.11(.04)**
Wave 1 Happiness .18(.03)** .18(.03)** .18(.03)**
  1. n1 = 2538; n2 = 40.
  2. p < .1;*p < .05; **p < .01.
  3. 1The presented number is the estimated coefficient and standard error is in the parentheses
  4. a The effects of these two variables were estimated but very small because of original measurement scale. Hence, they were not presented here