Table 1 Characteristics of responders and non-responders at the 11-year follow-up of the Danish National Birth Cohort.

From: Multiple health complaints in preadolescence and hospital contacts during adolescence: a prospective cohort study

 

Non-responders

Responders

Total

Overall, n

49,017 (50.9)

47,365 (49.1)

96,382 (100.0)

Sex (Girls), n (%)

22,229 (45.3)

24,750 (52.3)

46,979 (48.7)

Year of birth, mean (sd)

2000.3 (1.5)

2000.2 (1.4)

2000.2 (1.4)

Somatic morbiditya (yes), n (%)

3373 (6.9)

2708 (5.7)

6081 (6.3)

Psychiatric morbidityb (Yes), n (%)

923 (1.9)

599 (1.3)

1522 (1.6)

CCIc, n (%)

   0

46,520 (95.1)

45,320 (95.9)

91,840 (95.5)

   1

2119 (4.3)

1764 (3.7)

3883 (4.0)

   2 + 

274 (0.6)

195 (0.4)

469 (0.5)

Maternal education, n (%)

   Lower secondary/primary

5938 (12.7)

2649 (5.7)

8587 (9.2)

   Upper secondary

21,764 (46.5)

17,448 (37.3)

39,212 (41.9)

   Tertiary

19,129 (40.8)

26,735 (57.1)

45,864 (49.0)

Cohabitating (yes), n (%)

44,827 (91.5)

44,597 (94.2)

89,424 (92.8)

Multiparous (yes), n (%)

26,362 (53.8)

24,534 (51.8)

50,896 (52.8)

All hospital contacts, median (IQI)d

3 (1; 9)

3 (1; 7)

3 (1; 8)

In-patient contacts, median (IQI)d

0 (0; 1)

0 (0; 0)

0 (0; 0)

ERe contacts, median (IQI)d

1 (0; 2)

1 (0; 2)

1 (0; 2)

Out-patient contacts, median (IQI)d

2 (0; 6)

1 (0; 5)

2 (0; 5)

  1. aAs defined in methods section.
  2. bAny ICD-10 DF-diagnosis.
  3. cCharlson Comorbidity Index.
  4. dFrom index date to end of follow-up. IQI reflects the 25–75-percentile interquartile interval. To comply with Danish data-protection legislation, we report pseudo-medians and pseudo-interquartile intervals, calculated by ordering all observations and averaging the 5 values closest to the relevant percentile.
  5. eEmergency room.