Table 3.

Geographical origins of participants (N=474).

Province	Value, n (%)
Guangdong	80 (16.9)
Beijing	67 (14.1)
Shanghai	38 (8.0)
Jiangsu	37 (7.8)
Shandong	28 (5.9)
Zhejiang	26 (5.5)
Sichuan	22 (4.6)
Henan	17 (3.6)
Hubei	17 (3.6)
Liaoning	17 (3.6)
Chongqing	16 (3.4)
Anhui	15 (3.2)
Hunan	13 (2.7)
Shaanxi	13 (2.7)
Hebei	10 (2.1)
Fujian	9 (1.9)
Heilongjiang	8 (1.7)
Jiangxi	8 (1.7)
Shanxi	8 (1.7)
Jilin	5 (1.1)
Tianjin	5 (1.1)
Guangxi	4 (0.8)
Yunnan	4 (0.8)
Guizhou	2 (0.4)
Gansu	1 (0.2)
Hainan	1 (0.2)
Inner Mongolia	1 (0.2)
Ningxia	1 (0.2)
Xinjiang	1 (0.2)