Table 2 Baseline characteristics of study population (DOERAK study 2010-2013)
Total study population (N = 733) | Children Aged 2-9 years (N = 472) | Adolescents Aged 10-18 years (N = 261) | |
|---|---|---|---|
Age (years), mean (SD) | 8.20 (4.02) | 5.71 (2.25) | 12.70 (2.17) |
Social-economic status (SES) | N (%) | N (%) | N (%) |
Low (< 2000 euros) | 132 (22.8) | 82 (21.5) | 50 (19.2) |
Middle/High (≥2000 euros) | 448 (77.2) | 299 (78.5) | 149 (74.9) |
Education level in households | N (%) | N (%) | N (%) |
High (HAVO/VWO) | 268 (42.9) | 197 (48.8) | 71 (32.3) |
Low (MBO) | 356 (57.1) | 207 (51.2) | 149 (67.7) |
Ethnicity | N (%) | N (%) | N (%) |
Both parents born in Netherlands | 515 (85.4) | 335 (85.9) | 180 (84.5) |
At least one parent born in another country | 88 (14.6) | 55 (14.1) | 33 (15.5) |
Marital status | N (%) | N (%) | N (%) |
Parents separated | 103 (14.1%) | 52 (13.0) | 51 (23.2) |
Parents together | 518 (83.4) | 349 (87) | 169 (76.8) |
BMI-z score, mean (SD) | 0.12 (1.35) | 0.04 (1.35) | 0.27 (1.33) |
BMI mothers, mean (SD) | 25.39 (4.52) | 25.19 (4.44) | 25.77 (4.63) |
Somatic complaints (score), mean (SD) | 19.08 (−5.64) | 18.29 (4.93) | 20.50 (6.50) |
Number of GP consultations (12 months + current), mean (SD) | 4.23 (2.89) | 4.46 (3.04) | 3.82 (2.57) |
ICPC at baseline | N (%) | N (%) | N (%) |
ICPC A: General and unspecified | 126 (17.2) | 92 (19.5) | 34 (13.0) |
ICPC D: Digestive | 165 (22.5) | 122 (25.8) | 43 (16.5) |
ICPC H: Ear | 165 (22.5) | 126 (26.7) | 39 (14.9) |
ICPC L: Musculoskeletal | 170 (23.2) | 63 (13.3) | 107 (41.0) |
ICPC R: Respiratory | 298 (40.7) | 228 (48.3) | 70 (26.8) |
ICPC S: Skin | 353 (48.2) | 236 (50.0) | 117 (44.8) |
ICPC Other | 278 (37.9) | 164 (34.7) | 114 (43.7) |
ICPC Not coded | 260 (37.2) | 176 (38.9) | 84 (34.1) |