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Table 1 The injury prevalence of study sample by characteristics from log-linear model

From: The regional differences in prevalence, medical expenditures and risk factors for injury in Taiwanese teenagers

   Injury
Variables Categories N Yes % Adjusted residual Significance 95%CI
Main variable        
Area Offshore 177 61 34.5 1.1 28.18 40.82
  Mountain 220 90 40.9 3.4 * 33.61 48.19
  Taiwan 2752 819 29.8 -3.3* 5.81 53.79
Control Variables
Age 12~14 637 144 22.6 -5.0* 12.04 33.16
  15~17 882 246 27.9 -2.2* 14.58 41.22
  18~21 1630 580 35.6 6.0* 16.27 54.93
Gender male 1606 558 34.7 -4.9* 15.62 53.78
  female 1543 412 26.7 4.9* 9.32 44.08
Education junior 1075 277 25.8 -4.4* 11.45 40.15
  senior 1404 493 35.1 4.7* 17.22 52.98
  college 670 200 29.9 -0.6 18.05 41.75
Income (NTD) <30,000 625 189 30.2 -0.4 18.72 41.68
  3~49,999 774 232 30.0 -0.6 17.25 42.75
  5~69,999 839 271 32.3 1.1 18.76 45.84
  7~99,999 480 155 32.3 0.8 22.05 42.55
  >100,000 429 123 28.7 -1.0 19.33 38.07
Risk behaviors None 2494 684 27.4 -8.0* 5.13 49.67
  one 396 170 42.9 5.6* 33.05 52.75
  two or more 259 116 44.8 5.1* 36.78 52.79
Seatbelt Yes 1780 575 32.3 2.1* 12.57 52.03
  No 1369 395 28.9 -2.1* 12.09 45.62
Helmet Yes 2641 838 31.7 2.6* 7.81 55.65
  No 508 132 26.0 -2.6* 16.10 35.87
  1. Rate based on NHI of OPD records; N: total sample in NHIS;
  2. Income: household income in NTD (32NTD 1USD) *: adjusted residual >| 1.96|