Table 2 Comparison of characteristics by participants’ smoking status at the end of study

Total (row %)

128 (58.7)

77 (35.3)

13 (6.0)

Demographic factors

 Age, median years (IQR)

50 (37.5 – 59)

50 (38 – 61)

56 (51 – 61)

Highest level of education attained, n (%)

 Less than primary

2 (0.6)

1 (1.3)

0 (0)

 Primary

2 (1.6)

3 (3.9)

0 (0)

 Lower secondary

52 (40.6)

32 (41.6)

6 (46.2)

 Upper secondary

47 (36.7)

25 (32.5)

6 (46.2)

 University degree, or equivalent, or higher

25 (19.5)

16 (20.8)

1 (7.7)

Smoking-related factors

 Median average number of cigarettes/day (IQR)*

20 (10 – 30)

20 (10 – 30)

10 (5 – 17.5)

 Score on the Fagerström Test for Cigarette Dependence (IQR)*

6 (5 – 8)

6 (5 – 7)

5 (2.5 – 6)

 Median years smoking (IQR)

22 (15 – 40)

30 (15 – 40)

30 (30 – 36)

 Ever attempted to quit in the past, n (%)

92 (71.9)

60 (77.9)

9 (69.2)

 Drink alcohol every day, n (%)

44 (34.4)

33 (42.9)

3 (23.1)

 Drink caffeinated drinks every day, n (%)

95 (74.2)

50 (64.9)

10 (76.9)

 Living with at least one other smoker, n (%)

32 (25.0)

17 (22.1)

3 (23.1)

Reasons given to quit, n (%)

 Personal health condition

123 (96.1)

73 (94.8)

12 (92.3)

 Family’s health

15 (11.7)

11 (14.3)

2 (15.4)

 Expense

8 (6.3)

1 (1.3)

0 (0)

Quitting-related factors

 Advised to quit by referral doctor, n (%)^†

103 (87.3)

64 (90.1)

11 (100)

 Received written material from referring doctor, n (%)^‡

68 (57.6)

40 (56.3)

6 (54.6)

Days from baseline to target quit date, n (%)^§

 Less than 14 days

87 (68.5)

62 (79.5)

11 (100)

 14 days or more, or did not commit to a target quit date

40 (31.5)

16 (20.5)

0 (0)

 Number of successful counselling phone calls, median (IQR)^§

7 (5 – 8)

8 (7 – 8)

8 (7 – 8)