compute average OR and sd for each RUCC bin
compute average OR and sd for each RUCC bin

scripts/OR_urbanmetro_v6-14-13.py
- compute average OR for all zip3s across all
seasons for each RUCC bin (urban metro, small
metro, rural)
- found that average values were not as
disparate as originally thought

eclee25/flu-SDI-exploratory-age,eclee25/flu-SDI-exploratory-age