Influence of family resources on secondhand smoking in pregnant women: a cross-sectional study in the border and minority urban areas of Northwest China

Table 4 Correlation coefficient calculated between variables (n = 1249)

Correlation Coefficient	Home smoking ban	Husband tobacco use	Household tobacco use (except husband)	age	Gravidity times	Gestational weeks	Knowledge of secondhand smoke harm	nationality	religion	location	Work status
Home smoking ban	1.000
Husband tobacco use	0.170^**	1.000
Household tobacco use (except husband)	−0.062^*	0.020	1.000
age	0.046	−0.020	0.083^**	1.000
Gravidity times	− 0.097^**	0.042	0.016	−0.360^**	1.000
Gestational weeks	0.047	0.007	0.004	0.092^**	−0.080^**	1.000
Knowledge of secondhand smoke harm	0.210^**	−0.092^**	− 0.017	0.087^**	0.127^**	−0.018	1.000
nationality	0.028	−0.053	− 0.052	0.079^**	− 0.058^*	0.085^**	0.057^*	1.000
religion	−0.016	− 0.076^**	− 0.037	0.068^*	0.003	0.065^*	0.121^**	0.806^**	1.000
location	0.173^**	−0.046	−0.066^*	−0.086^**	− 0.166^**	0.013	− 0.215^**	0.133^**	− 0.107^**	1.000
Work status	−0.074^**	−0.009	0.029	0.054	0.001	−0.037	0.051	0.074^**	0.058^*	−0.020	1.000

ISSN: 1471-2393