Table 1.

Tobacco consumption patterns for male and female current smokers in Songjiang, Shanghai, China.

Variables	Current smoker (7260)		Male smoker (7211)		Female smoker (49)
	n	Proportion (%)	n	Proportion (%)	n	Proportion (%)
Smoking duration (years)a
<20	683	9.41	662	9.18	21	42.86
20–29	1306	17.99	1293	17.93	13	26.53
30–39	2556	35.21	2548	35.33	8	16.33
≥40	2715	37.40	2708	37.55	7	14.29
Smoking intensity (cigarettes/day)a
1–9	636	8.76	626	8.68	10	20.41
10–19	2006	27.63	1991	27.61	15	30.61
≥20	4618	63.61	4594	63.71	24	48.98
Monthly income (RMB)a
<1500	549	7.56	536	7.43	13	26.53
1500–2499	3008	41.43	2995	41.53	13	26.53
2500–4999	2609	35.94	2592	35.95	17	34.69
≥5000	1094	15.07	1088	15.09	6	12.24
Monthly cost of smoking (RMB)a
<200	1135	15.63	1120	15.53	15	30.61
200–499	3913	53.90	3895	54.01	18	36.73
500–999	1625	22.38	1616	22.41	9	18.37
≥1000	587	8.09	580	8.04	7	14.29
Tobacco price per pack (RMB)
<10	1926	26.53	1911	26.50	15	30.61
10–19	3633	50.04	3615	50.13	18	36.73
20–49	1415	19.49	1404	19.47	11	22.45
≥50	286	3.94	281	3.90	5	10.20

^aThe difference between male and female current smokers was statistically significant (P < 0.01).