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Table 1 Baseline characteristics and electronic cigarettes status of the study participants

From: Effectiveness and safety of electronic cigarettes among sole and dual user vapers in Kuantan and Pekan, Malaysia: a six-month observational study

Characteristics Dual users
n = 146
Single user
n = 69
Total participants
(n = 215)
P value
(2-tailed)
Age 23
(19–40)
23
(19–39)
23
(19–40)
0.946*
Sex
 Male 145 (98) 69 (98.6) 214 (98.2) 1.0
 Female 3 (2) 1 (1.4) 4 (1.8)  
Marital status
 Married 22 (14.9) 19 (27.1) 41 (18.8) 0.041
 Single 126 (85.1) 51 (72.9) 177 (81.2)  
Race
 Malay 127 (85.8) 61 (87.1) 188 (86.2) 0.632
 Chinese 19 (12.8) 7 (10) 26 (11.9)  
 Indian 2 (1.4) 2 (2.9) 4 (1.8)  
Education
 Primary  
 secondary 39 (26.4) 19 (27.1) 58 (26.6) 0.902
 Diploma/Degree 109 (73.6) 51 (72.9) 160 (73.4)  
Occupation
 Private 70 (47.3) 38 (54.3) 108 (49.5) 0.535
 Government 13 (8.8) 6 (8.6) 19 (8.7)  
 Self-employment 15 (10.1) 9 (12.9) 24 (11)  
 Students 50 (33.8) 17 (24.3) 67 (30.7)  
Income
 00 50 (33.8) 17 (24.3) 67 (30.7) 0.468
  < 2500 MYR# 2 (1.4) 2 (2.9) 4 (1.8)  
  ≥ 2500–5000 MYR 89 (60.1) 48 (68.6) 137 (62.8)  
  > 5000 MYR 7 (4.7) 3 (4.3) 10 (4.6)  
EC-MFTND 3 (1–7) 3 (1–7) 3 (1–7) 0.668
EC-MGNVBQ 14 (3–22) 13 (3–24) 14 (3–24) 0.625
Quit attempts in the past year? 0 (0–1) 0 (0–1) 0 (0–1) 0.585*
Any therapy to quit smoking before EC use
 Never Attempted 142 (95.9) 66 (94.3) 208 (95.4) 0.730
 NRT 6 (4.1) 4 (5.7) 10 (4.6)  
Age started smoking 15 (12–27) 16 (12–22) 15 (12–27) 0.125*
Pack/year 7 (0.5–50) 4.75
(0.25–30)
6 (0.25–50) 0.114*
ECs use (months) 4 (2–24) 8 (6–24) 5 (2–24) < 0.001*
ECs consumption
 Daily 145 (98) 69 (98.6) 214 (98.2) 1.000
 Occasionally 3 (2) 1 (1.4) 4 (1.8)  
  1. *Non-parametric data were expressed as medians, and p values were calculated using the Mann-Whitney U test; for categorical variables, chi-squared test was applied to calculate the value. EC-MFTND EC-Modified Fagerstrom Test for Nicotine Dependence, EC-MGNVBQ EC-Modified Glover-Nilsson Vaping Behavioural Questionnaire