Association between absolute latitude, peak timing, and duration of influenza and respiratory syncytial virus (RSV) epidemics, by geographic zone.

Statistically significant P-values appear in bold. SH: Southern Hemisphere; NH: Northern Hemisphere. Duration estimates based on a 5% threshold; see methods for details. This table provides information on the number of distinct studies included in the review, while information on the number of distinct locations is provided in the text. *Statistics based on linear regression of duration or peak month against latitude.