Table 1 Total number of femur and humerus shaft fractures, sex-specific, age-specific incidence rate per 1000 children and 95% confidence intervals (CIs). Crude odds ratio (OR) and adjusted OR for association between sex (girl reference) and femur and humerus shaft fractures by age group

0.010 (0.005–0.014)

0.015 (0.009–0.020)

0.024 (0.017–0.031)

1.40 (0.77–2.55)

1.30 (0.66–2.58)

0.025 (0.018–0.032)

0.030 (0.022–0.037)

0.055 (0.045–0.065)

1.09 (0.74–1.62)

1.09 (0.72–1.64)

0.053 (0.043–0.064)

0.046 (0.037–0.056)

0.100 (0.086–0.113)

0.81 (0.61–1.08)

0.79 (0.59–1.07)

0.035 (0.027–0.043)

0.066 (0.055–0.078)

0.101 (0.087–0.115)

1.81 (1.34–2.45)

1.68 (1.22–2.30)

0.020 (0.014–0.027)

0.031 (0.023–0.039)

0.052 (0.042–0.062)

1.43 (0.95–2.15)

1.46 (0.96–2.23)

0.011 (0.006–0.016)

0.014 (0.082–0.019)

0.025 (0.018–0.032)

1.11 (0.62–1.99)

1.20 (0.65–2.22)