Table 1. Participants’ baseline demographic characteristics and smoking profiles.
| Variables | No. (%)a | ||
|---|---|---|---|
| Video (n = 333) | Text (n = 322) | Control (n = 368) | |
| Age, mean (SD), year | 31.6 (5.5) | 31.9 (5.3) | 32.5 (5.2) |
| Employment status | |||
| Unemployed | 43 (14.5) | 32 (11.8) | 35 (15.0) |
| Self-employment | 46 (13.5) | 36 (10.5) | 52 (10.1) |
| Employed | 229 (72.0) | 237 (77.7) | 260 (74.9) |
| Education level | |||
| Primary school or below | 5 (1.5) | 7 (2.2) | 5 (1.4) |
| Middle school | 111 (33.6) | 99 (31.0) | 95 (26.0) |
| College/university or above | 214 (64.8) | 213 (66.8) | 265 (72.6) |
| Annual family income (CNY)b | |||
| ¥9,999 or below | 44 (13.5) | 37 (11.7) | 56 (15.6) |
| ¥10,000–49,999 | 47 (14.5) | 67 (21.2) | 53 (14.7) |
| ¥50,000–99,999 | 110 (33.8) | 99 (31.3) | 121 (33.6) |
| ¥100,000–199,999 | 68 (20.9) | 52 (16.5) | 52 (14.4) |
| ¥200,000 or above | 56 (17.2) | 61 (19.3) | 78 (21.7) |
| First-time expectant father | |||
| Yes | 178 (53.5) | 176 (54.7) | 180 (48.9) |
| No | 155 (46.5) | 146 (45.3) | 188 (51.1) |
| Living with smoking partners | |||
| Yes | 2 (0.6) | 0 (0) | 3 (0.8) |
| No | 331 (99.4) | 322 (100) | 365 (99.2) |
| Monthly regular alcohol use | |||
| No | 115 (34.5) | 125 (38.8) | 150 (40.8) |
| Yes | 218 (65.5) | 197 (61.2) | 218 (59.2) |
| Regular activity at least 1 h/week | |||
| Yes | 109 (32.7) | 106 (32.9) | 123 (33.4) |
| No | 224 (67.3) | 216 (67.1) | 245 (66.6) |
| Physical health status (SF-12-PCS), mean (SD) | 52.6 (3.9) | 53.2 (4.0) | 53.0 (4.1) |
| Mental health status (SF-12-MCS), mean (SD) | 52.4 (6.6) | 52.8 (6.8) | 53.5 (6.7) |
| Daily cigarette consumption, mean (SD) | 9.7 (6.1) | 9.9 (6.3) | 9.0 (5.8) |
| Level of daily cigarette consumption | |||
| Less than 10 | 242 (72.7) | 234 (72.6) | 276 (75.0) |
| 11–20 | 84 (25.2) | 81 (25.2) | 90 (24.4) |
| More than 21 | 7 (2.1) | 7 (2.2) | 2 (0.5) |
| Dual use of e-cigarette | 2 (0.6) | 1 (0.3) | 2 (0.5) |
| Dual use of IQOS | 0 (0) | 2 (0.6) | 0 (0) |
| Nicotine dependence by FTND | |||
| Low dependence (0–3 Fagerström score) | 219 (66.4) | 209 (65.1) | 245 (66.9) |
| Moderate dependence (4–5 Fagerström score) | 75 (22.7) | 84 (26.2) | 82 (22.4) |
| High dependence (6–10 Fagerström score) | 36 (10.9) | 28 (8.7) | 39 (10.7) |
| Readiness to quit within 30 days | |||
| Yes | 35 (10.5) | 23 (7.1) | 34 (9.2) |
| No | 298 (89.5) | 299 (92.9) | 334 (90.8) |
| Years of regular tobacco use | 14.1 (6.4) | 14.1 (5.5) | 14.4 (5.9) |
| Quit attempt for 24 hours within 1 year | |||
| Yes | 73 (21.9) | 83 (25.8) | 95 (25.8) |
| No | 260 (78.1) | 239 (74.2) | 273 (74.2) |
| Latest quit attempt date | |||
| Within last month | 8 (11.0) | 9 (10.8) | 14 (14.7) |
| More than 1 month ago | 65 (89.0) | 74 (89.2) | 81 (85.3) |
| Looking for smoking cessation service | |||
| Yes | 0 (0.0) | 1 (0.3) | 0 (0.0) |
| No | 333 (100.0) | 321 (99.7) | 368 (100.0) |
| Smoking self-efficacy scored by SEQ-12 (12–60), mean (SD) | 32.0 (10.9) | 30.7 (10.4) | 32.0 (10.5) |
Abbreviations: FTND, Fagerström Test of Nicotine Dependence; IQOS, “I quit original smoking” (the name of a new heated tobacco product); MCS, Mental Health Status; PCS, Physical Health Status; SEQ-12, Smoking Self-efficacy Questionnaire; SF-12, 12-Item Short-Form Survey.
aSample sizes varied because of missing data on some variables.
b¥/CNY represents China Yuan; US$1.00 = ¥6.7.