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Table 1 Characteristics of the participants (n,%), N = 3223

From: Do negative childhood conditions increase the risk of somatic symptoms in adolescence? – a prospective cohort study

  All Girls (n = 1622)   Boys (n = 1601) P-value
  n % n % n %  
Somatic symptoms (age 15) 2963   1493   1470   < 0.001
few 2103 71 916 61 1187 81  
many 860 29 577 39 283 19  
Somatic symptoms (age 18) 2341   1262   1079   < 0.001
few 1748 75 837 66 911 84  
many 593 25 425 34 168 16  
Somatic symptoms mother (age 15) 1760   885   875   0.985
few 1167 66 587 66 580 66  
many 593 34 298 34 295 34  
Somatic symptoms father (age 15) 1502   746   756   0.282
few 1070 71 522 70 548 72  
many 432 29 224 30 208 28  
Family functioning (age 15) 2880   1451   1429   0.691
good 2137 74 1072 74 1065 75  
poor 743 26 379 26 364 25  
Number of negative life events, up to age 15 2959   1483   1476   0.082
0–1 2566 87 1270 86 1296 88  
2 or more 393 13 213 14 180 12  
Parental household income (age 14) 3221   1620   1601   0.219
high 1139 35 563 35 576 36  
medium 1109 34 545 34 564 35  
low 973 30 512 32 461 29  
Highest education in the household (age 14) 3166   1591   1575   0.082
high 1136 36 542 34 594 38  
medium 1635 52 839 53 796 51  
low 395 12 210 13 185 12