Table 3.

Average number of cigarettes smoked per day at baseline and follow-up, by baseline sociodemographic characteristics and smoking-related variables

	Baseline	Follow-up	Percentage change	n
Cohort respondents at waves 1 and 2†
Total	6.9	4.9	−29.8%**	728
Age
18–24	6.2	4.2	−32.6%*	76
25–39	6.0	4.3	−28.1%**	280
40–54	7.7	5.2	−31.5%*	245
55+	9.1	6.6	−27.2%*	127
Sex
Female	6.7	4.4	−33.4%**	302
Male	7.1	5.2	−27.6%**	426
Marital status
Couple	7.0	5.0	−28.8%**	487
Separated/widowed	8.1	5.3	−35.2%**	90
Single	6.2	4.4	−29.2%**	150
Education level
Primary graduate or less	8.2	5.8	−29.2%**	242
Secondary graduate	6.2	4.5	−27.2%**	247
High school graduate or more	6.7	4.5	−33.3%**	225
Employment status
Employed	7.1	5.1	−27.0%**	489
Unemployed or inactive‡	6.7	4.3	−35.5%**	237
Monthly household income
Low ($0 to $3000 pesos)	6.4	4.7	−26.9%**	185
Medium ($3001 to $5000 pesos)	6.2	4.1	−34.6%**	205
High ($5001 pesos or more)	8.0	5.9	−26.8%**	267
Smoking status§
Heavy smoker	12.3	7.4	−39.3%**	372
Light smoker	2.8	2.9	2.1%	356
Made serious quit attempt in the previous year
Yes	7.0	4.5	−36.2%**	192
No	6.9	5.0	−27.3%**	536
Plan to quit
Within the next month/next 6 months	5.7	4.0	−30.7%**	118
Beyond 6 months/not planning to quit	7.2	5.0	−30.1%**	561
Only cohort respondents who continued smoking at wave 2¶
Total	7.2	5.7	−20.7%**	635
Smoking status
Heavy smoker	12.2	8.2	−33.0%**	336
Light smoker	2.9	3.6	24.8%*	299

t Tests: *p<0.05, **p<0.01.

^†Survey-adjusted averages include 0 consumption for those who quit smoking at wave 2 (data only for the 728 of those followed-up who reported consumption at both waves; of whom 93 reported having been quit for at least a month before wave 2).

^‡Inactive means retired or on a pension, student, or home duties.

^§Heavy smoker: consumption above the median of five cigarettes per day at wave 1.

^¶Survey-adjusted averages exclude those who had quit smoking at wave 2.