group n_reported_spheroid_observations mean_stimulation_index median_stimulation_index sample_sd_stimulation_index minimum_stimulation_index maximum_stimulation_index mean_low_insulin_pg_per_ml mean_high_insulin_pg_per_ml ratio_of_group_mean_concentrations n_independent_human_donors n_independent_manufacturing_batches in_well 22 1.441972111964324 1.2539378651556319 0.35888095242568385 1.0847997310973228 2.3957370838273575 27522.936363636363 38345.74545454545 1.393228721961815 static_without_vascularization 5 1.3108944256158948 1.3658830324004638 0.1845977277961488 1.0341438238330085 1.492475806825022 29332.379999999997 38399.24 1.3091075459952448 static_with_vascularization 5 1.4697690747436762 1.5716340836708051 0.3467924552962357 1.0750949663084353 1.9035879020682538 41552.92 59364.2 1.4286408752982942 flow_without_vascularization 5 1.3976454564885181 1.243094392443895 0.35637654826466286 1.1632475438604788 2.018686773788815 21354.34 29278.12 1.371061807576352 flow_with_vascularization 11 2.63112409781249 2.7245195454275004 0.9029824163551429 1.4859527072667997 4.304156788114553 16169.27909090909 43667.604545454546 2.70065253373021