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Table 1 Base case and sensitivity analysis by geographic area (SA includes only studies with birth prevalence measure) (detection rate per 100,000 newborns)

From: Systematic literature review and meta-analysis on the epidemiology of methylmalonic acidemia (MMA) with a focus on MMA caused by methylmalonyl-CoA mutase (mut) deficiency

Base case

Sensitivity analysis (birth prevalence)

 

MMA

Isolated MMA

MMA

Isolated MMA

Region

point estimate

(95% CI)

Number of studies

I2

point estimate (95% CI)

Number of studies

I2

point estimate

(95% CI)

Number of studies

I2

point estimate

(95% CI)

Number of studies

I2

North America

1.22

(0.61–2.01)

10

79.79%

0.38

(0.09–0.79)

8

53.23%

1.36

(0.71–2.20)

9

76.46%

0.42

(0.09–0.91)

7

53.07%

Europe

1.12

(0.50–1.91)

11

79.22%

0.60

(0.16–1.23)

6

2.17%

1.55

(0.51–3.02)

9

79.95%

0.60

(0.16–1.23)

6

2.17%

Asia-Pacific

0.79

(0.44–1.21)

12

(15 cohorts)

45.46%

0.51

(0.32–0.74)

9

(12 cohorts)

0.00%

1.00

(0.46–1.69)

11

44.76%

0.57

(0.27–0.96)

8

0.00%

MENA

6.04

(4.02–8.41)

6

15.78%

5.69

(2.54–9.87)

2

NA

5.60

(2.94–8.94)

5

21.45%

NA

NA

NA