Table 1.

Comparison of six early indicators in 100 confirmed cases across 45 Chinese cities. The asterisk denotes significant statistical tests.

	Days required to increase from 30 to 100 cases	CFR in the first 100 confirmed cases	Slow growing phase (cases/day)	Fast-growing phase (cases/day)	Day of the phase transition point	Number of cases at the transition point
China (45 cities)	6.6 (5.3–7.9)	0.8% (0.2–1.4%)	3.3 (2.6–4.1)	16.1 (12.3–19.8)	5.5 (4.6–6.4)	17.7 (11.9–23.6)
Wuhan city	2	2.5%	–	34.1	–	–
15 cities in Hubei province (excluding Wuhan)	4.4 (3.1–5.7)	1.8% (0.6–2.9%)	4.8 (3–6.6)	24 (18.4–29.6)	3.8 (2.9–4.8)	16.9 (9.9–23.8)
29 cities in China (excluding Hubei)	7.8 (6.7–9)	0.2% (0–0.4%)	3 (2.3–3.7)	11.3 (9.4–13.3)	5.9 (5–6.8)	17.9 (11.7–24.1)
Kruskal–Wallis One-way ANOVA/Mann–Whitney test (p-value)	0.0005*	0.0006*	0.1076	0.0001*	0.0275*	0.7664