Variables | Intervention | Control |
---|---|---|
Subjects | 90 | 93 |
Male (%) | 48 (53) | 58 (62)a |
Average age | 30 | 34b |
Married (%) | 44 (49) | 51 (55)c |
Education: illiterate and semi-literate (%) | 10 (11) | 12 (13)d |
Employment: informal sector (labor intensive and service industry) (%) | 70 (78) | 81 (87)e |
Have medical-related insurance in Shanghai (%) | 14 (16) | 21 (23) f |