Table 4 Sources of heterogeneity and subgroup analysis in the Schizochytrium dataset according to a random effects model.
From: Benefits of the microalgae Spirulina and Schizochytrium in fish nutrition: a meta-analysis
Grouping | k | SMD | 95% CI | Q | I2 |
|---|---|---|---|---|---|
Family | |||||
Acipenseridae | 3 | 0.039 | [− 0.037; 0.114] | 0.06 | 0.0% |
Cichlidae | 8 | 3.214 | [− 1.190; 7.618] | 26.93 | 74.0% |
Ictaluridare* | 4 | 0.530 | [0.222; 0.838] | 2.70 | 0.0% |
Moronidae | 5 | − 1.513 | [− 4.944; 1.919] | 55.02 | 92.3% |
Salmonidae | 9 | 0.292 | [− 0.828; 1.411] | 43.22 | 81.5% |
Sciaenidae | 6 | 0.369 | [− 5.576; 6.313] | 86.47 | 94.2% |
Serranidae* | 3 | 1.123 | [0.132; 2.113] | 0.32 | 0.0% |
Sparidae | 3 | − 2.266 | [− 12.481; 7.150] | 23.49 | 91.5% |
Terapontidae | 2 | 7.820 | [− 24.670; 40.309] | 6.79 | 85.3% |
Test for subgroup differences | Q = 61.70, df = 8, P < 0.001 | ||||
Habitat | |||||
Freshwater | 22 | 1.368 | [− 0.449; 3.184] | 186.80 | 88.8% |
Marine | 21 | − 0.051 | [− 1.537; 1.434] | 179.42 | 88.9% |
Test for subgroup differences | Q = 1.59, df = 1, P = 0.208 | ||||
Feeding | |||||
Carnivores | 29 | − 0.305 | [− 1.429; 0.819] | 250.02 | 88.8% |
Omnivores | 6 | 2.806 | [− 1.433; 7.045] | 3.95 | 92.0% |
Herbivores | 8 | 3.214 | [− 1.189; 7.618] | 5.04 | 74.0% |
Test for subgroup differences | Q = 5.96, df = 2, P = 0.051 | ||||
Measurement | |||||
Individual data | 33 | 0.132 | [− 0.261; 0.525] | 362.00 | 91.2% |
Batch data | 10 | 0.806 | [− 0.743; 2.355] | 14.76 | 39.0% |
Test for subgroup differences | Q = 0.75, df = 1, P = 0.387 | ||||
