Table 1: Description of the original sample in the Banish National Birth Cohort, the sample used for raw analyses including responders to motor skills at 7 years of age and spinal pain at 11 years of age, and the sample used for adjusted analyses, including responders to all covariates as well as motor skills and spinal pain
All responses
Sample for raw analyses
n = 25,184
Sample for adjusted analyses
n = 16,921
Baseline variables (interviews pregnancy-18 months)
n = 91,848
Sex, female, n (%)
44,723 (49)
12,943 (51)
8662 (51)
Gestational age at birth, mean weeks (SD)
40.10 (187)
40.16 (1.79)
40.24 (1.64)
Birthweight, mean, gram (SD)
3585 (570)
3605 (544)
3628 (524)
Maternal smoking during pregnancy, n (%)
15,157 (18)
2959 (13)
2051 (12)
Maternal alcohol consumption during pregnancy, n (%)
7508 (21)
4777 (20)
3460 (20)
Mother’s schooling, n (%)
• Primary school only
• Basic vocational training
• Upper high school
• Unknown
•7721 (12)
• 13,253 (20)
• 43,113 (65)
• 1769 (3)
• 1814 (9)
• 3524 (17)
• 14,942 (72)
• 502 (2)
• 1358 (8)
• 2760 (16)
• 12,406 (73)
• 501 (2)
Household income, mean Danish crowns (SD)
526,426 (309,398)
540,939 (262,718)
540,843 (264,475)
Variables from FU at age 7
n = 54,439
DCDQ total (range 15–75), mean (SD)
67 (8)
68 (8)
68 (8)
DCDQ movement (range 6–30), mean (SD)
27 (4)
27 (4)
27 (4)
DCDQ fine motor (range 4–20), mean (SD)
18 (3)
18 (3)
18 (3)
DCDQ coordination (range 5–25), mean (SD)
22 (3)
22 (3)
22 (3)
Height age 7, mean, cm (SD)
126 (6)
126 (6)
126 (6)
Weight age 7, mean, kg (SD)
25 (5)
25 (4)
25 (4)
Variables from FU at age 11
n = 47,830
Moderate spinal pain, n (%)
13,441 (30)
7188 (29)
4854 (29)
Severe spinal pain, n (%)
5438 (12)
2755 (11)
1847 (11)
Moderate neck pain, n (%)
11,127 (25)
5984 (24)
4026 (24)
Severe neck pain, n (%)
3403 (8))
1778 (7)
1194 (7)
Moderate thoracic pain, n (%)
6225 (14)
3179 (13)
2149 (13)
Severe thoracic pain, n (%)
1928 (4)
947 (4)
624 (4)
Moderate lumbar pain, n (%)
4711 (10)
2342 (9)
1586 (9)
Severe lumbar pain, n (%)
1687 (4)
785 (3)
540 (3)
DCDQ Developmental Coordination Disorder Questionnaire,
SD standard deviation,
FU follow-up