|
Variables
|
Baseline sample n = 775
|
Follow-up participants, main analysis n = 539
|
Follow-up participants, secondary analysis n = 692
|
|---|
|
Sex, females
|
355 (45.8)
|
280 (51.9)
|
381 (55.1)
|
|
Age (mean, SD)
|
16.1 (0.5)
|
16.1 (0.5)
|
16.1 (0.5)
|
|
BMI
|
|
Thinness
|
38 (4.9)
|
29 (5.4)
|
34 (4.9)
|
|
Normal weight
|
551 (71.1)
|
392 (72.2)
|
504 (71.8)
|
|
Overweight/obese
|
183 (23.6)
|
117 (21.7)
|
153 (22.1)
|
|
Missing
|
3 (0.4)
|
1 (0.2)
|
1 (0.1)
|
|
Mother education
|
|
Low
|
243 (31.4)
|
169 (31.4)
|
228 (32.9)
|
|
High
|
308 (39.7)
|
229 (42.5)
|
289 (41.8)
|
|
Don’t know
|
206 (26.6)
|
133 (24.7)
|
166 (24.0)
|
|
Missing
|
18 (2.3)
|
8 (1.5)
|
9 (1.3)
|
|
Father education
|
|
Low
|
291 (37.5)
|
198 (36.7)
|
253 (37.0)
|
|
High
|
238 (30.7)
|
187 (34.7)
|
237 (34.2)
|
|
Don’t know
|
215 (27.7)
|
138 (25.6)
|
182 (27.0)
|
|
Missing
|
31 (4.0)
|
16 (3.0)
|
17 (2.5)
|
|
Chronic diseases, yes
|
198 (25.5)
|
135 (25.0)
|
205 (29.6)
|
|
Missing
|
6 (0.8)
|
4 (0.7)
|
5 (0.7)
|
|
Low social acceptancea
|
212 (27.4)
|
148 (27.5)
|
198 (28.6)
|
|
Missing
|
27 (3.5)
|
15 (2.8)
|
11 (1.6)
|
|
Psychological distressb
|
107 (13.8)
|
76 (14.1)
|
131 (18.9)
|
|
Missing
|
24 (3.1)
|
9 (1.7)
|
17 (2.5)
|
- Values are number, n (%) if not otherwise stated. Main analyses = participants without persistent MSK pain at baseline, secondary analyses = all participants with and without persistent MSK pain at baseline. BMI body mass index, MSK musculoskeletal; aSubscale from Self-perception profile for adolescents scale. Low social acceptance ≤3.0. bHopkins symptom check list-10 (1–4), psychological distress = ≥ 1.85
