Table 1

Incidence of fractures among elderly people by nature of injury, age, sex, and season of the year

WomenMenBoth sexes
Incidence/ 100 000 person yearsIncidence/ 100 000 person years
WinterSummerIncidence rate ratio (95% CI)PAR (%)WinterSummerIncidence rate ratio (95% CI)PAR (%)Incidence rate ratio (95% CI)PAR (%)
CI = confidence interval; PAR = population attributable risk.
Summer: 1 April through 30 September; winter: 1 October through 31 March.
65–79 years
    Hip8206841.20 (1.08 to 1.33)94182931.42 (1.20 to 1.70)181.27 (1.15 to 1.37)12
    Arm14738721.69 (1.55 to 1.84)263572111.69 (1.39 to 2.05)261.69 (1.56 to 1.83)26
    Other5604781.17 (1.04 to 1.33)82702621.03 (0.85 to 1.25)11.12 (1.02 to 1.25)6
    Any285320351.40 (1.32 to 1.49)1710447661.36 (1.22 to 1.52)151.39 (1.32 to 1.47)16
≥80 years
Hip323530561.06 (0.98 to 1.15)3176915711.13 (0.96 to 1.32)61.08 (1.00 to 1.15)4
    Arm154412471.24 (1.10 to 1.40)115273461.52 (1.10 to 2.09)211.30 (1.13 to 1.43)13
    Other8136181.31 (1.11 to 1.56)145223791.38 (1.01 to 1.88)161.34 (1.14 to 1.54)14
    Any559249221.14 (1.07 to 1.21)6281922971.23 (1.08 to 1.40)101.17 (1.09 to 1.22)8