highly significantp < 0.000001
However, substantial between-country variability was observed, with highly significant differences in seroprevalence rates among country–decade combinations (χ2 ≈ 58,742, df = 23, p < 0.000001).
However, substantial between-country variability was observed, with highly significant differences in seroprevalence rates among country–decade combinations (χ2 ≈ 58,742, df = 23, p < 0.000001).