H&H is part of the Tobacco Center of Regulatory Science (TCORS) Population Core, which aims to understand the use and health effects of specific e-cigarette products across populations. More specifically, the H&H study aims to identify novel risk factors for adolescent and young adult substance use and examine mental and emotional health, and other health behaviors.

Participants in H&H were recruited in 9th grade from 10 high schools in the Los Angeles metropolitan area (N=3396). Data were collected every 6 months through high school, and we have completed three additional waves of follow-up post-high school. Data collection is planned annually through 2022.

Data

To access the data, please the instructions found on the main Data page

Surveys

Name

Description

Fieldwork Period

Sample Size

H&H W1

Happiness and Health Study Wave 1

Fall 2013

3396

H&H W2

Happiness and Health Study Wave 2

Spring 2014

3396

H&H W3

Happiness and Health Study Wave 3

Fall 2014

3387

H&H W4

Happiness and Health Study Wave 4

Spring 2015

3387

H&H W5

Happiness and Health Study Wave 5

Fall 2015

3381

H&H W6

Happiness and Health Study Wave 6

Spring 2016

3381

H&H W7

Happiness and Health Study Wave 7

Fall 2016

3377

H&H W8

Happiness and Health Study Wave 8

Spring 2017

3373

H&H W9

Happiness and Health Study Wave 9

2018-2019

3370

H&H W10

Happiness and Health Study Wave 10

2019-2020

3310

H&H W11

Happiness and Health Study Wave 11

2020-2021

3308

H&H W12

Happiness and Health Study Wave 12

2021-2022

3287