Table 1

Baseline characteristics of the female participants stratified by SHS exposure status

VariablesSHS exposure in childhood, N (%)No SHS exposure in childhood, N (%)P value
Number of participants596 (28.1)1524 (71.9)
Age, years (mean±SD)55.52±8.9857.23±9.43<0.001
Obesity68 (11.4)197 (12.9)0.342
Current SHS exposure status305 (51.2)489 (32.1)<0.001
Alcohol consumption94 (15.8)127 (8.3)<0.001
Physical activity<0.001
 Never128 (21.5)585 (38.4)
 Mild377 (63.3)800 (52.5)
 Moderate52 (8.7)74 (4.9)
 Vigorous39 (6.5)65 (4.3)
Education status<0.001
 Illiteracy84 (14.1)199 (13.1)
 Primary school100 (16.8)306 (20.1)
 Junior school220 (36.9)638 (41.9)
 Senior school140 (23.5)323 (21.2)
 College degree or above52 (8.7)58 (3.8)
Diabetes94 (15.77)279 (18.31)0.168
Hypertension187 (31.38)547 (35.89)0.054
Hyperlipidaemia59 (9.90)113 (7.41)0.060
Coronary heart disease74 (12.42)169 (11.09)0.389
  • P values were obtained from the Χ2 test (for categorical variables) or analysis of variance.

  • SHS, secondhand smoke.