Skip to main content

Table 1 Number of respondents (N) and response proportion (%) by survey year, gender and age

From: Time trends in single versus concomitant neck and back pain in finnish adolescents: results from national cross-sectional surveys from 1991 to 2011

       Year     
   1991 1999 2001 2003 2005 2007 2009 2011 Total
Boys           
12-14 y N 1559 1583 1533 1447 1420 1136 1010 893 10581
% 72 73 65 66 62 54 48 43 61
16-18 y N 1867 2194 1613 1561 1443 1205 1205 932 12020
% 64 64 55 55 51 43 41 31 51
Girls           
12-14 y N 1691 1685 1831 1626 1560 1402 1313 1073 12527
% 83 83 77 77 73 70 66 57 73
16-18 y N 2354 2608 2069 2085 1896 1874 1838 1538 16262
% 83 81 77 76 71 70 64 54 72
Total   7471 8070 7046 6719 6319 5617 5516 4566 51044
  75 75 68 68 64 59 56 46 64