Table 3

Risk for all-cause mortality for the entire autism spectrum disorder (ASD) group, as well as separately for females and males, and low-functioning ASD and high-functioning ASD groups

ControlsASD OR (95% CI)Low-functioning ASD OR (95% CI)High-functioning ASD OR (95% CI)
Number of deaths (%)Number of deaths (%)Number of deaths (%)Number of deaths (%)
Total2.56 (2.38–2.76)5.78** (4.94–6.75)2.18 (2.00–2.38)
24 358 (0.91)706 (2.60)169 (2.71)537 (2.57)
Females2.24 (1.99–2.51)8.52 (6.55–11.08)1.88 (1.65–2.14)
11 693 (1.39)296 (3.51)61 (3.00)235 (3.67)
Males2.87* (2.60–3.16)4.88 (4.02–5.93)2.49 (2.22–2.80)
12 665 (0.69)410 (2.19)108 (2.57)302 (2.08)
  • ASD, autism spectrum disorder; OR, odds ratio; CI, confidence interval.

  • * Partial likelihood ratio test for interaction effect ASD × gender, P=0.001.

  • ** Partial likelihood ratio test for model selection (low-functioning ASD/high-functioning ASD), P<0.001.