Table 1.

Variation statistics of cesarean section rates

	Standardized CS rate	Crude CS rate
Mean	380.6	374.0
Standard deviation	60.0	54.7
Max	227.5	227.3
Min	680.3	596.6
Max/Min	3.0	2.6
P90/P10	1.5	1.5
CV	0.2	0.1
SCV*	2.3

*The SCV was multiplied by 100. CS cesarean section, Standardized CS rate, CS rate standardized to maternal age, CV coefficient of variation, SCV systematic component of variation