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Table 6 The accumulated analysis of variance for the predictors of weight loss, giving the factors, percent of variance explained, F-ratios and probability statistics for main effects (n = 1,174,064)

From: Weight outcomes audit in 1.3 million adults during their first 3 months’ attendance in a commercial weight management programme

Change d.f. % variance F-ratio p-value
Age (years) 1 0.50 13543.70 <0.001
Gender 1 0.79 21272.4 <0.001
Height (m) 1 0.01 312.5 <0.001
Start BMI (kg/m2) 1 0.03 802.60 <0.001
Attendances (weeks) 1 43.97 1189414.90 <0.001
Weight lost in week 1 (%) 1 11.29 305358.90 <0.001
Residual 1,174,058 43.41   
Total 1,174,064