Table 2 Descriptive statics for the variables of QoL, mood, social support, and healthcare utilisation for all participants and separated by point of cessation and chronic stress at the beginning of the PREVIEW intervention

Social-cognitive variables

 QoL Physical health (4 – 20)

15.1 ± 2.5

14.4 ± 2.6

14.7 ± 2.6

15.0 ± 2.5

15.6 ± 2.2

16.6 ± 1.9

15.8 ± 1.9

14.7 ± 2.1

12.8 ± 2.6

 QoL Psychological (4 – 20)

14.0 ± 2.3

13.5 ± 2.4

13.7 ± 2.4

13.9 ± 2.3

14.4 ± 2.1

15.6 ± 1.7

14.6 ± 1.7

13.5 ± 1.9

11.9 ± 2.3

 QoL Social relationships (4 – 20)

14.6 ± 2.8

14.1 ± 3.0

14.4 ± 2.9

14.4 ± 2.8

14.9 ± 2.6

15.7 ± 2.4

15.0 ± 2.4

14.2 ± 2.6

12.9 ± 3.2

 QoL Environment (4 – 20)

15.2 ± 2.3

14.2 ± 2.3

14.7 ± 2.3

15.3 ± 2.2

15.9 ± 2.0

16.7 ± 1.7

15.7 ± 1.8

14.6 ± 2.0

13.4 ± 2.3

 Chronic stress (0 – 40)

14.2 ± 6.3

16.5 ± 6.4

14.9 ± 6.3

14.2 ± 6.1

13.0 ± 6.0

26.7 ± 16.6

38.7 ± 18.0

54.3 ± 22.5

85.4 ± 33.9

 Mood states (0 – 228)

49.0 ± 30.7

57.8 ± 34.1

52.4 ± 31.1

50.4 ± 31.9

43.5 ± 27.3

6.3 ± 1.0

6.3 ± 1.0

6.3 ± 1.0

6.1 ± 1.1

 Social support—family encouragement diet (1 – 5)

2.7 ± 1.2

3.0 ± 1.2

2.8 ± 1.2

2.7 ± 1.1

2.6 ± 1.1

1.9 ± 0.9

2.1 ± 0.9

2.2 ± 1.0

2.4 ± 1.1

 Social support—family discouragement diet (1 – 5)

2.1 ± 1.0

2.4 ± 1.1

2.2 ± 1.0

2.2 ± 1.0

1.9 ± 0.9

2.0 ± 0.8

2.1 ± 0.8

2.3 ± 0.9

2.4 ± 0.9

 Social support—friends’ encouragement diet (1 – 5)

2.2 ± 0.9

2.4 ± 0.9

2.2 ± 0.9

2.2 ± 0.9

2.1 ± 0.8

1.8 ± 0.7

2.0 ± 0.7

2.1 ± 0.8

2.2 ± 0.9

 Social support—friends’ discouragement diet (1 – 5)

2.0 ± 0.8

2.2 ± 0.9

2.1 ± 0.8

2.0 ± 0.8

1.9 ± 0.7

2.0 ± 0.9

2.1 ± 0.9

2.0 ± 0.8

2.1 ± 1.0

 Social support—family participation PA (1 – 5)

2.0 ± 0.9

2.1 ± 0.9

1.9 ± 0.8

2.0 ± 0.9

2.1 ± 0.9

1.8 ± 0.8

1.9 ± 0.8

1.9 ± 0.8

1.9 ± 0.9

 Social support—friends’ participation PA (1 – 5)

1.9 ± 0.8

2.0 ± 0.9

1.8 ± 0.8

1.9 ± 0.8

1.8 ± 0.8

16.6 ± 1.9

15.8 ± 1.9

14.7 ± 2.1

12.8 ± 2.6

Primary healthcare utilisation during last 3 months

 Contact with GP^a or NP^a

  No contact

995

(44.8%)

165 (45.6%)

231 (48.4%)

176 (42.0%)

423 (44.0%)

266 (50.8%)

320 (46.1%)

230 (40.7%)

179 (41.0%)

  Once

566

(25.5%)

89

(24.6%)

115 (24.1%)

105 (25.1%)

257 (26.7%)

140 (26.7%)

180 (25.9%)

153 (27.1%)

93

(21.3%)

  Twice

358

(16.1%)

54

(14.9%)

82

(17.2%)

75

(17.9%)

147 (15.3%)

69

(13.2%)

113 (16.3%)

104 (18.4%)

72

(16.5%)

  Three or more times

301

(13.6%)

54

(14.9%)

49

(10.3%)

63

(15.0%)

135 (14.0%)

49

(9.4%)

81

(11.7%)

78

(13.8%)

93

(21.3%)

 Prescription renewal

  Did not renew prescription

1669 (75.2%)

277 (76.5%)

374 (78.4%)

314 (74.9%)

704 (73.2%)

392 (74.8%)

525 (75.6%)

441 (78.1%)

311 (71.2%)

  Renewed prescription

551

(24.8%)

85

(23.5%)

103 (21.6%)

105 (25.1%)

258 (26.8%)

132 (25.2%)

169 (24.4%)

124 (21.9%)

126 (28.8%)

 Diet or PA advice from healthcare professionals

  Did not receive advice

1823 (82.1%)

309 (85.4%)

395 (82.8%)

333 (79.5%)

786 (81.7%)

449 (85.7%)

561 (80.8%)

455 (80.5%)

358 (81.9%)

  Received advice

397

(17.9%)

53

(14.6%)

82

(17.2%)

86

(20.5%)

176 (18.3%)

75

(14.3%)

133 (19.2%)

110 (19.5%)

79

(18.1%)

 Referral to or contact with another specialist healthcare professional (any reason)

  No referral or contact

1738 (78.3%)

279 (77.1%)

375 (78.6%)

342 (81.6%)

742 (77.1%)

440 (84.0%)

562 (81.0%)

428 (75.8%)

308 (70.5%)

  Referral or contact

482

(21.7%)

83

(22.9%)

102 (21.4%)

77

(18.4%)

220 (22.9%)

84

(16.0%)

132 (19.0%)

137 (24.2%)

129 (29.5%)

 Money spend on PA activities

  No spend

1112 (50.1%)

201 (55.5%)

286 (60.0%)

211 (50.4%)

414 (43.0%)

242 (46.2%)

319 (46.0%)

298 (52.7%)

253 (57.9%)

  Spend

1108 (49.9%)

161 (44.5%)

191 (40.0%)

208 (49.6%)

548 (57.0%)

282 (53.8%)

375 (54.0%)

267 (47.3%)

184 (42.1%)

 Taking medication or supplements with or without prescription

  No medication or supplements

885

(39.9%)

180 (49.7%)

221 (46.3%)

156 (37.2%)

328 (34.1%)

192 (36.6%)

276 (39.8%)

220 (38.9%)

197 (45.1%)

  Medication or supplements

1335 (60.1%)

182 (50.3%)

256 (53.7%)

263 (62.8%)

634 (65.9%)

332 (63.4%)

418 (60.2%)

345 (61.1%)

240 (54.9%)