Table 4. Estimates of the growth rate and doubling time during the growth phase in Madrid, Catalonia, and Spain.

Location	Date of Peak	Growth Rate	Doubling Time
Madrid	31-Mar-2020	0.214 (0.180, 0.247)	3.243 (2.803, 3.849)
Catalonia	31-Mar-2020	0.237 (0.210, 0.264)	2.920 (2.621, 3.296)
Spain	31-Mar-2020	0.216 (0.194, 0.238)	3.206 (2.909, 3.571)

Upper and lower limits of the 95% confidence intervals are given in parentheses under the estimated values.