Table 15.
Authors | Intervention & Study | N, Response Rate & Method | Exposure Levels | Change in Levels and Distribution of Change across Participants | Outcome Measure(s) before and after Outcomes | Did Outcome Change with Change in Exposure? Yes/No (Significance Tested?) |
Before/after Outcome Change Compared to That Estimated from an ERF | Comments | Confounders Adjusted for in Analyses | ||
---|---|---|---|---|---|---|---|---|---|---|---|
Nature | Design | Before | After | ||||||||
Hygge, Evans & Bullinger (2002) [50] | Munich Opening new airport closing old airport |
Prospective cohort study +control matched om SES 3 data collection waves B (6 mos) & two A (1&2 year) |
326 (mean age 10.4 years) Memory and Reading paper and pencil tests High response rates |
Measured LAeq,24 h at school only Increase: 53 (n = 111) Decrease: 68 (n = 65) Control: (n = 107) |
62 54 |
+9 new airport –14 old airport |
Long and short term memory; reading; attention; speech perception | Yes Effects on reading, memory and speech perception, not attention. Effects disappeared when old airport closed; emerging after the new airport opened Various statistical tests including interactions. |
n.a. | Children tested in soundproof caravan Suggest effects may be reversible |
Confounds ruled out by design: ethnicity; mother’s education; number of family members; occupation; attrition |