Video consultation and treatment in the community smoking cessation therapy success rates in patients with mental illness: a randomized controlled trial

Figures & data

Figure 1. The study flowchart.

Table 1. Baseline characteristics of randomized and non-randomized outpatients (n = 70).

Sex, % (n)
Female	42.86 (30)
Male	57.14 (40)
Age (years), mean (SD)	40.59 (11.81)
Outpatient clinic, % (n)
1	67.14 (47)
2	15.71 (11)
3 + 4	17.15 (12)
Fagerstrom test for nicotine dependence, mean (SD)	6.39 (1.72)
Fagerstrom test for nicotine dependence > 2, % (n)	98.57 (69)
Medication load start, mean (SD)
Antipsychotic medication^a	1.08 (0.93)
Antidepressive medication^a^b	0.70 (0.99)
BMI (kg/m^2), mean (SD)^b	29.70 (7.56)
BMI groups, % (n)^b
Underweight (<18.4)	0
Normal weight (18.5–24.9)	35.29 (24)
Overweight + Obesity class I (25.0–34.9)	44.12 (30)
Obesity class II + Obesity class III (>35)	20.59 (14)
Cigarettes smoked daily, mean (SD)	25.31 (13.19)
Cigarettes smoked daily groups, % (n)
<10	5.71 (4)
11–20	52.86 (37)
20–30	27.14 (19)
<30	14.29 (10)

^a Daily defined doses.

^b missing values (n): antidepressive medication (2), BMI (2).

Table 2. Baseline characteristics stratified on the three groups of patients (randomized to videoconference, randomized to treatment as usual, non-randomized to videoconference), n = 70.

	Randomized to videoconferencing (n = 24)	Randomized to treatment as usual (n = 23)	Non-randomized to videoconferencing (n = 23)	p-value
Sex, % (n)
Female (n = 19)	41.67 (10)	39.13 (9)	47.83 (11)	–
Male (n = 28)	58.33 (14)	60.87 (14)	52.17 (12)	0.83
Age (years), mean (SD)	41.88 (12.37)	40.83 (10.97)	39 (12.34)	0.65
Fagerstrom test for nicotine dependence mean (SD)	6.63 (2.04)	6.26 (1.29)	6.26 (1.79)	0.52
Number of sessions^a, mean (SD)	15.13 (17.73)	10.90 (9.16)	19.87 (23.20)	0.47
Nicotine patches^a, mean (SD)	32.38 (60.03)	48.67 (79.73)	55.74 (73.08)	0.40
Medication load start, mean (SD)^b
Antipsychotic medication	0.93 (0.84)	1.06 (0.87)	1.27 (1.08)	0.57
Antidepressive medication^a	0.75 (0.94)	0.62 (0.94)	0.73 (1.12)	0.86
BMI start (kg/m^2), mean (SD)^a	30.02 (9.08)	28.93 (5.25)	30.16 (8.12)	0.94
Cigarettes smoked daily, mean (SD)
At baseline	29.04 (15.13)	21.09 (7.74)	25.65 (14.57)	0.06
At study end^a	9.73 (11.51)	10.35 (12.52)	7.33 (10.40)	0.75
Stopped smoking^a, % (n)	45.45 (10)	45.00 (9)	50.00 (9)	0.94

^a missing values (n): number of sessions (2), nicotine patches (2), antidepressive medication (2), BMI (2), cigarettes smoked daily at study end (10), stopped smoking (10).

^b Daily defined doses.

Table 3. Predictors for a > 50% reduction in cigarette use (n = 60).

	Halved use		Associations
	No	Yes	OR (p-value), crude	OR (p-value), adjusted^a
Total, % (n)	30.00 (18)	70.00 (42)	–	–
Sex, % (n)
Female	29.63 (8)	70.37 (19)	–
Male	30.30 (10)	69.70 (23)	0.97 (0.96)	0.85 (0.78)
Age (years), mean (SD)	40.78 (10.90)	41.40 (12.54)	1.00 (0.85)	1.00 (0.97)
Fagerstrom test for nicotine dependence, mean (SD)	6.17 (1.62)	6.33 (1.78)	1.06 (0.73)	1.01 (0.96)
Number of sessions, mean (SD)	10.94 (19.74)	19.00 (17.94)	1.04 (0.15)	1.02 (0.51)
Nicotine patches used, mean (SD)	14.78 (18.42)	60.86 (80.53)	1.02 (0.06)	1.02 (0.10)
Medication load at baseline, mean (SD)^b
Antipsychotic medication	1.50 (0.93)	0.96 (0.89)	0.54 (0.045)	0.47 (0.04)
Antidepressive medication	0.62 (0.84)	0.71 (0.99)	1.11 (0.60)	1.05 (0.90)
BMI (kg/m^2), mean (SD)	29.91 (5.06)	29.91 (8.92)	1.00 (1.00)	1.00 (1.00)
Cigarettes smoked daily at baseline, mean (SD)	24.06 (9.14)	25.21 (13.90)	1.01 (0.74)	1.00 (0.99)

^a Adjusted for sex, age, number of sessions and number of nicotine patches used.

^b Daily defined doses.

Table 4. Predictors of a reduction in the number of cigarettes smoked daily to < 10 per patient (n = 58).

	< 10 cigarettes smoked daily		Associations
	No	Yes	OR, crude (p-value)	OR (p-value), adjusted^a
Total, % (n)	46.55 (27)	53.45 (31)^b	–	–
Sex, % (n)
Female	52.00 (13)	48.00 (12)	–	–
Male	42.42 (14)	57.58 (19)	1.47 (0.47)	1.52 (0.48)
Age (years), mean (SD)	40.93 (11.32)	42.10 (12.73)	1.01 (0.71)	1.00 (0.97)
Fagerstrom test for nicotine dependence, mean (SD)	6.52 (1.40)	6.39 (1.54)	0.94 (0.73)	0.95 (0.78)
Number of sessions, mean (SD)	11.59 (16.63)	21.45 (19.88)	1.04 (0.08)	1.03 (0.28)
Nicotine patches used, mean (SD)	22.81 (35.88)	71.16 (86.91)	1.01 (0.02)	1.01 (0.09)
Medication load at baseline, mean (SD)
Antipsychotic medication	1.43 (0.97)	0.89 (0.84)	0.52 (0.04)	0.51 (0.05)
Antidepressive medication	0.56 (0.83)	0.79 (1.05)	1.30 (0.36)	1.52 (0.26)
BMI (kg/m^2), mean (SD)	30.20 (6.51)	29.11 (8.88)	0.98 (0.60)	0.98 (0.60)
Cigarettes smoked daily at baseline, mean (SD)	28.70 (11.81)	22.71 (12.26)	0.95 (0.09)	0.94 (0.02)

^a Adjusted for sex, age, number of sessions and number of nicotine patches used.

^b Two participants were already smoking < 10 cigarettes daily and were excluded.

Data availability statement

The data associated with the paper are kept secure in OPEN a statistical department under University of Southern Denmark. The data is available, and can be accessed only be the first and last author of the paper due to ethical and security concerns.