Variable;Estimate milk (kg);Standard Error;95% CI (Lower CI);95% CI (Upper CI);P-value Intercept;6292.1;72.7;6149.7;6434.5;<0.001 Year of calving;;;;; 2015;Referent;;;; 2016;106.8;34;40.1;173.5;0.002 2017;-89.2;34.6;-157.1;-21.3;0.01 2018;-483.3;36.2;-554.3;-412.3;<0.001 2019;-98.5;37.2;-171.4;-25.7;0.008 2020;119.8;36.4;48.5;191.2;0.001 Farm;;;;; Farm 2;Referent;;;; Farm 1;642.7;23.7;596.2;689.2;<0.001 Season (defined as Spring from 1st of March to 31st of May, Summer from 1st of June to 31st of August, Autumn from 1st of September to 30th of November and Winter from 1st of December to 28th of February);;;;; Spring;Referent;;;; Summer;-24.5;28.1;-79.6;30.5;0.382 Autumn;211.4;26.3;159.8;262.9;<0.001 Winter;169.2;25.8;118.7;219.8;<0.001 Parity;;;;; Lactation 2;0b;;;; Lactation 3;-777.1;23.5;-823.3;-730.9;<0.001 Lactation 4+;-1260.6;22.5;-1304.6;-1216.6;<0.001 Calving ease (defined as 0 = not observed, 1 = unassisted calving, 2 = calving assisted by 1 person, and 3 = calving assisted by more than 1 person);;;;; 0;Referent;;;; 1;439;30.7;378.8;499.1;<0.001 2;472.9;35.4;403.4;542.3;<0.001 3;409.2;39.1;332.5;485.9;<0.001 Stillbirth;;;;; No;Referent;;;; Yes;-374.5;68.1;-507.9;-241.2;<0.001 305-d milk production of previous lactation;0.4;0;0.3;0.4;<0.001 Days in the close-up group;16.6;1.6;13.5;19.6;<0.001