Fig. 1

Associations (adjusted risk ratios, RRs) ^† between major storms with hospital admission due to chronic obstructive pulmonary disease, NY, 2001–2013. ^† Adjust for the cross-basis for the exposure period [cb (period)], splines with 5 df per year [ns (time)], splines with 3 df of temperature [ns (temp)] and dew point [ns (dewp)], indicators for holidays and day of the week, and ambient concentration of PM_2.5