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Table 5 Univariate meta-regression analyses for continuous moderators of prevalence estimates

From: A systematic review and meta-analysis of suicidality in autistic and possibly autistic people without co-occurring intellectual disability

Covariates

k

Coefficient (95% CI)

SE

z

Heterogeneity Analysis

Test of Moderators

QE

df

p

Ï„2

I2

QM

df

p

R2

Suicidal Ideation

Male (%)

36

− .145 (− .370; .081)

.115

− 1.258

823.245

34

 < .001

.032

95.09%

1.5814

1

.207

2.07%

Year of Publication

37

.007 (− .007; .021)

.007

0.950

840.160

35

 < .001

.033

95.27%

0.9023

1

.342

0.00%

NOS Overall Score

34

− .010 (− .056; .035)

.023

− 0.451

709.112

32

 < .001

.034

95.59%

0.2037

1

.652

0.00%

Suicide Plans

Male (%)

12

− .404 (− .722; − .085)

.162

− 2.486

106.626

10

 < .001

.013

92.00%

6.1805

1

.013 *

35.54%

Year of Publication

12

.021 (− .013; .054)

.017

1.206

262.725

10

 < .001

.020

94.64%

1.4549

1

.228

3.64%

NOS Overall Score

12

.035 (− .014; .084)

.025

1.397

238.824

10

 < .001

.019

94.90%

1.9514

1

.162

7.09%

Suicide Attempts and Behaviours

Male (%)

29

− .106 (− .301; .090)

.100

− 1.061

693.523

27

 < .001

.021

99.51%

1.1266

1

.289

2.53%

Year of Publication

31

.010 (− .006; .027)

.008

1.127

856.604

29

 < .001

.020

99.44%

1.4798

1

.224

0.53%

NOS Overall Score

29

− .008 (− .039; .023)

.016

− 0.519

888.396

27

 < .001

.020

99.46%

0.2693

1

.604

0.00%

  1. k No of estimates, CI Confidence Interval, SE Standard Error, QE Test of Residual Heterogeneity, QM Test of moderators
  2. p = significant at * < .05, ** < .01, *** < .001