Table 1.

Sample characteristics

	Entire sample			Men			Women
	Mean	95% CI	N	Mean	95% CI	N	Mean	95% CI	N
Smokera	0.332	0.291, 0.373	500	0.605	0.544, 0.666	248	0.063	0.033, 0.094	252
Smoking ratea	16.431	14.784, 18.077	178	17.276	15.552, 19.001	157	10.110	5.220, 14.999	21
Smoking supporta	−0.790	−0.816, −0.765	500	−0.695	−0.734, −0.657	248	−0.884	−0.914, −0.854	252
Smoking models	0.483	0.457, 0.510	499	0.481	0.443, 0.519	248	0.486	0.448, 0.524	251
Women	0.504	0.460, 0.548	500	–	–	–	–	–	–
Years of education	12.990	12.732, 13.248	495	13.304	12.964, 13.643	247	12.677	12.290, 13.065	248
Marrieda	0.600	0.557, 0.644	498	0.524	0.462, 0.587	248	0.676	0.618, 0.734	250
Professional	0.492	0.448, 0.536	500	0.548	0.486, 0.611	248	0.437	0.375, 0.498	252
Laborera	0.080	0.056, 0.104	500	0.113	0.073, 0.153	248	0.048	0.021, 0.074	252
Student	0.192	0.157, 0.227	500	0.238	0.185, 0.291	248	0.147	0.103, 0.191	252
Retired/not workinga	0.236	0.199, 0.273	500	0.101	0.063, 0.139	248	0.369	0.309, 0.429	252
Age	38.188	36.908, 39.468	500	37.637	35.775, 39.499	248	38.730	36.962, 40.499	252

Numbers in cells are means, associated 95% confidence intervals, and useful sample size for each concept. Smoking support is the difference in encouragers by discouragers among observed social ties divided by the number of observed ties. Smoking models is the number of smokers among observed social ties divided by the number of observed ties

^aIndicates a significant difference in means between men and women based on a t test assuming unequal variances