Report information Item-level data quality summary Item-level data quality dashboard

Scatter Plot Matrix Descriptive statistics (Categorical) Descriptive statistics (Continuous)

Unexpected data structure (Dataset-level) Unexpected data structure (Segment-level) Data type mismatch

Missing values (Item-level) Response-rates (Item-level) Response-rates (Segment-level) Segment missingness

Contradictions Inadmissible categorical values Range violations

Distribution (Categorical) Distribution (Categorical) observer Cumulative distribution device Cumulative distribution observer Unexpected mean/median Distribution Unexpected proportion End-digit preference Time trend device Time trend observer Distribution across device Distribution across observer Multivariate outliers Unexpected distribution shape Univariate outliers Variance proportion device Variance proportion observer

id: Participant ID exdate: Examination date and time sex: Sex age: Age obs_bp: Blood pressure examiner dev_bp: Blood pressure device ID sbp1: Systolic blood pressure 1 sbp2: Systolic blood pressure 2 dbp1: Diastolic blood pressure 1 dbp2: Diastolic blood pressure 2 obs_soma: Somatometry examiner height: Body height dev_length: Body height scale ID weight: Body weight dev_weight: Body weight scale ID waist: Waist circumference obs_int: Interview examiner school: Highest educational level family: Marital status smoking: Smoking status stroke: Ever had stroke myocard: Ever had myocardial infarction diab_known: Known diabetes diab_age: Age of diabetes onset contraception: Ever taken birth control pills income: Monthly household income hdl: HDL-cholesterol ldl: LDL-cholesterol cholesterol: Total cholesterol seg_part_intro: Intro segment consent seg_part_somatometry: Somatometry segment consent seg_part_interview: Interview segment consent seg_part_laboratory: Laboratory segment consent

Item-level metadata Segment-level metadata Dataframe-level metadata Cross-item-level metadata Table ‘expected_id_dataframe’ Table ‘expected_id_segment’ Table ‘LABS_below 20 2000 - 4...::4a2f6’ Table ‘LABS_Dev_01 Dev_02...::aeb3a’ Table ‘LABS_males females::dbd02’ Table ‘LABS_married married ...::b1125’ Table ‘LABS_no yes::cde3d’ Table ‘LABS_none lower se...::918d1’ Table ‘LABS_nonsmoke former s...::a69c9’ Table ‘LABS_Obs_01 Obs_02...::8ad12’ Table ‘LABS_Obs_01 Obs_02...::90d24’ Table ‘LABS_Obs_01 Obs_02...::ed888’ Table ‘LABS_yes no::098f3’ Table ‘missing_table’ Table ‘segment_missing_table’ Grading Ruleset “0” Ruleset Formats