Table 2

Relative risk between 1983/1984 and 1989 estimated by odds ratio (95% confidence interval) for sport related injuries in the study area (Motala) and control area (Mjölby) over the registration periods classified according to age and sex

Study areaControl area
MenWomenTotalMenWomenTotal
1983/198419891983/198419891983/198419891983/198419891983/198419891983/19841989
Age 0–12
Injured81686345144113613034339563
Non-injured336833473203317565716522218920752120198943094064
Odds ratio0.84 (0.61–1.17)0.72 (0.49–1.06)0.79 (0.62–1.01)0.52 (0.33–0.81)1.03 (0.64–1.68)0.70 (0.51–0.97)
Age 13–19
Injured17414612010029424677826453141135
Non-injured207919192028181141073730137612781274122526502503
Odds ratio0.91 (0.72–1.14)0.93 (0.71–1.23)0.92 (0.77–1.10)1.15 (0.83–1.58)0.86 (0.59–1.25)1.01 (0.80–1.29)
Age 20–39
Injured29025362593523121161362023136159
Non-injured547154295395527610 86610 705353434443329320068636645
Odds ratio0.88 (0.74–1.04)0.97 (0.68–1.39)0.90 (0.77–1.05)1.20 (0.93–1.55)1.20 (0.66–2.18)1.21 (0.96–1.52)
Age 40+
Injured46541924657819221753627
Non-injured9030950410 00310 50019 03320 004551659286112653111 62812 459
Odds ratio1.12 (0.75–1.65)1.20 (0.66–2.20)1.14 (0.82–1.59)1.08 (0.58–1.99)0.28 (0.10–0.75)0.70 (0.42–1.15)
All
Injured591521264228855749273270135114408384
Non-injured19 94820 19920 62920 76240 57740 96112 61512 72612 83512 94525 45025 671
Odds ratio0.87 (0.77–0.98)0.86 (0.72–1.03)0.87 (0.79–0.96)0.98 (0.83–1.16)0.84 (0.65–1.08)0.93 (0.81–1.07)