Table 2.
Annual incidences of idiopathic scoliosis by age groups.
| Year | Total Population | Idiopathic Scoliosis Patients | Female to Male Ratio of Cases | Incidence (Per 100,000 Population) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Total | Male | Female | Total | Male | Female | Ratio (95% CI) | p-Value | Total | Male | Female | |
| Total | |||||||||||
| 2011 | 11,239,996 | 5,881,170 | 5,358,826 | 64,136 | 27,514 | 36,622 | 1.458 (1.435–1.481) | <0.0001 | 571 | 468 | 683 |
| 2012 | 11,012,807 | 5,753,390 | 5,259,417 | 53,585 | 22,978 | 30,607 | 1.454 (1.430–1.480) | <0.0001 | 487 | 399 | 582 |
| 2013 | 10,765,287 | 5,611,677 | 5,153,610 | 51,453 | 21,880 | 29,573 | 1.469 (1.444–1.495) | <0.0001 | 478 | 390 | 574 |
| 2014 | 10,503,422 | 5,461,478 | 5,041,944 | 50,754 | 21,612 | 29,142 | 1.458 (1.433–1.484) | <0.0001 | 483 | 396 | 578 |
| 2015 | 10,252,151 | 5,317,005 | 4,935,146 | 47,355 | 21,177 | 26,178 | 1.330 (1.306–1.354) | <0.0001 | 462 | 398 | 530 |
| 2011–2015 | 53,773,663 | 28,024,720 | 25,748,943 | 267,283 | 115,161 | 152,122 | 1.435 (1.424–1.446) | <0.0001 | 497 | 411 | 591 |
| 0–2 years old | |||||||||||
| 2011 | 1,377,662 | 709,944 | 667,718 | 472 | 259 | 213 | 0.874 (0.729–1.048) | 0.1465 | 34 | 36 | 32 |
| 2012 | 1,398,142 | 719,983 | 678,159 | 409 | 227 | 182 | 0.851 (0.700–1.035) | 0.1051 | 29 | 32 | 27 |
| 2013 | 1,416,869 | 728,206 | 688,663 | 384 | 190 | 194 | 1.080 (0.884–1.319) | 0.4525 | 27 | 26 | 28 |
| 2014 | 1,372,125 | 704,425 | 667,700 | 404 | 206 | 198 | 1.014 (0.834–1.232) | 0.8887 | 29 | 29 | 30 |
| 2015 | 1,339,380 | 686,679 | 652,701 | 306 | 168 | 138 | 0.864 (0.690–1.082) | 0.2036 | 23 | 24 | 21 |
| 2011–2015 | 6,904,178 | 3,549,237 | 3,354,941 | 1975 | 1050 | 925 | 0.932 (0.853–1.018) | 0.1182 | 29 | 30 | 28 |
| 3–9 years old | |||||||||||
| 2011 | 3,274,307 | 1,698,130 | 1,576,177 | 7011 | 3566 | 3445 | 1.041 (0.993–1.091) | 0.0943 | 214 | 210 | 219 |
| 2012 | 3,209,730 | 1,661,444 | 1,548,286 | 5887 | 2973 | 2914 | 1.052 (0.999–1.107) | 0.0529 | 183 | 179 | 188 |
| 2013 | 3,172,280 | 1,639,689 | 1,532,591 | 5839 | 2912 | 2927 | 1.075 (1.022–1.132) | 0.0055 | 184 | 178 | 191 |
| 2014 | 3,175,393 | 1,638,761 | 1,536,632 | 6046 | 3040 | 3006 | 1.054 (1.003–1.109) | 0.0391 | 190 | 186 | 196 |
| 2015 | 3,201,817 | 1,650,662 | 1,551,155 | 6079 | 3113 | 2966 | 1.014 (0.964–1.066) | 0.5909 | 190 | 189 | 191 |
| 2011–2015 | 16,033,527 | 8,288,686 | 7,744,841 | 30,862 | 15,604 | 15,258 | 1.046 (1.023–1.070) | <0.0001 | 192 | 188 | 197 |
| 10–14 years old | |||||||||||
| 2011 | 3,119,491 | 1,630,159 | 1,489,332 | 27,854 | 11,124 | 16,730 | 1.639 (1.600–1.679) | <0.0001 | 893 | 682 | 1123 |
| 2012 | 2,969,359 | 1,550,478 | 1,418,881 | 23,564 | 9383 | 14,181 | 1.645 (1.603–1.688) | <0.0001 | 794 | 605 | 999 |
| 2013 | 2,803,088 | 1,464,013 | 1,339,075 | 22,669 | 8967 | 13,702 | 1.664 (1.620–1.709) | <0.0001 | 809 | 612 | 1023 |
| 2014 | 2,666,175 | 1,389,826 | 1,276,349 | 21,871 | 8507 | 13,364 | 1.703 (1.658–1.750) | <0.0001 | 820 | 612 | 1047 |
| 2015 | 2,488,686 | 1,294,946 | 1,193,740 | 19,374 | 7787 | 11,587 | 1.608 (1.563–1.655) | <0.0001 | 778 | 601 | 971 |
| 2011–2015 | 14,046,799 | 7,329,422 | 6,717,377 | 115,332 | 45,768 | 69,564 | 1.652 (1.632–1.671) | <0.0001 | 821 | 624 | 1036 |
| 15–19 years old | |||||||||||
| 2011 | 3,468,536 | 1,842,937 | 1,625,599 | 28,799 | 12,565 | 16,234 | 1.460 (1.427–1.494) | <0.0001 | 830 | 682 | 999 |
| 2012 | 3,435,576 | 1,821,485 | 1,614,091 | 23,725 | 10,395 | 13,330 | 1.443 (1.407–1.481) | <0.0001 | 691 | 571 | 826 |
| 2013 | 3,373,050 | 1,779,769 | 1,593,281 | 22,561 | 9811 | 12,750 | 1.448 (1.411–1.487) | <0.0001 | 669 | 551 | 800 |
| 2014 | 3,289,729 | 1,728,466 | 1,561,263 | 22,433 | 9859 | 12,574 | 1.409 (1.372–1.446) | <0.0001 | 682 | 570 | 805 |
| 2015 | 3,222,268 | 1,684,718 | 1,537,550 | 21,596 | 10,109 | 11,487 | 1.243 (1.211–1.277) | <0.0001 | 670 | 600 | 747 |
| 2011–2015 | 16,789,159 | 8,857,375 | 7,931,784 | 119,114 | 52,739 | 66,375 | 1.402 (1.386–1.418) | <0.0001 | 709 | 595 | 837 |
| 10–19 years old | |||||||||||
| 2011 | 6,588,027 | 3,473,096 | 3,114,931 | 56,653 | 23,689 | 32,964 | 1.546 (1.520–1.572) | <0.0001 | 860 | 682 | 1058 |
| 2012 | 6,404,935 | 3,371,963 | 3,032,972 | 47,289 | 19,778 | 27,511 | 1.542 (1.514–1.570) | <0.0001 | 738 | 587 | 907 |
| 2013 | 6,176,138 | 3,243,782 | 2,932,356 | 45,230 | 18,778 | 26,452 | 1.553 (1.525–1.583) | <0.0001 | 732 | 579 | 902 |
| 2014 | 5,955,904 | 3,118,292 | 2,837,612 | 44,304 | 18,366 | 25,938 | 1.547 (1.518–1.576) | <0.0001 | 744 | 589 | 914 |
| 2015 | 5,710,954 | 2,979,664 | 2,731,290 | 40,970 | 17,896 | 23,074 | 1.403 (1.376–1.431) | <0.0001 | 717 | 601 | 845 |
| 2011–2015 | 30,835,958 | 16,186,797 | 14,649,161 | 234,446 | 98,507 | 135,939 | 1.520 (1.508–1.532) | <0.0001 | 760 | 609 | 928 |