Fig. 3From: Extended two-stage designs for environmental researchRelative risk (RR) of non-accidental mortality for a 10 µg/m3 increase in ozone across US states during 1987–2000 in Case Study 2. Estimates were obtained as state-level fixed-effects predictions from a standard meta-regression model (blue) and as best linear unbiased predictions (BLUPs) from a two-level random-effects model (red)Back to article page