borderline significantP = 0.064
In meta-regression models, overall prevalence rates of hepatic steatosis did not explain any heterogeneity among all countries (adjusted RR = 1.00, 95% CI: 0.99–1.01, P = 0.79) or among Japanese studies (adjusted RR = 1.00, 95% CI: 0.99–1.00, P = 0.24); however, in other countries there was a borderline significant relationship with a 3% increase in RR per 1% increase in baseline prevalence of hepatic steatosis (adjusted RR = 1.03, 95% CI: 0.997–1.058, P = 0.064).