From: Technical guidelines for risk assessment of heavy metals in traditional Chinese medicines
 | Grouping variable | Total number of people | Number of users (%) |
---|---|---|---|
Sex | Male | 9420 | 1786 (18.96%) |
Female | 11,497 | 2783 (24.21%) | |
Place of residence | Urban | 11,376 | 2457 (21.60%) |
Rural | 9541 | 2112 (22.14%) | |
Age | 18–44 years | 15,193 | 2987 (19.66%) |
45–59 years | 4080 | 1046 (25.64%) | |
60Â years and above | 1644 | 536 (32.60%) | |
Academic qualifications | Primary school and below | 3029 | 703 (23.21%) |
Junior high school | 6583 | 1449 (22.01%) | |
High school and technical secondary school | 4582 | 970 (21.17%) | |
College | 2990 | 618 (20.67%) | |
University and above | 3733 | 829 (22.21%) | |
Occupation | Housekeeping | 5185 | 1140 (21.99) |
Current student | 137 | 20 (14.60%) | |
Civil servants, enterprises and institutions | 5353 | 1132 (21.15%) | |
Service industry | 6987 | 1566 (22.41%) | |
Unemployed and others | 2056 | 325 (15.81%) | |
Retired | 1177 | 378 (32.12%) | |
Annual income | Less than 10,000 | 4951 | 981 (19.81%) |
10,000–20,000 | 5978 | 1402 (23.45%) | |
20,000–30,000 | 3291 | 712 (21.63%) | |
30,000–40,000 | 2471 | 542 (21.93%) | |
40,000 or more | 2502 | 521 (20.82%) |