7-blood_pressure

7 - blood pressure

Blood pressure is the measurement of the force exerted against the walls of the arteries as blood flows through them. Blood pressure is recorded as two values: systolic pressure (the pressure when the heart beats) and diastolic pressure (the pressure when the heart is at rest between beats).

Blood pressure measurement can be performed in a variety of settings, including hospitals, clinics, and even at home, using an automated or manual sphygmomanometer. Blood pressure measurement can be used to monitor the effectiveness of treatment interventions, such as lifestyle changes. The goal of treatment is to achieve and maintain target blood pressure levels, which are generally lower for individuals at higher risk for cardiovascular disease.

Blood pressure is measured using an OMRON Blood Pressure Monitor HEM-RML31 device and an appropriately sized cuff. Multiple blood pressure readings are done during the visit. For each blood pressure reading, three measurements are taken: systolic pressure, diastolic pressure, and average heart rate. The participant is asked to avoid caffeine, exercise and smoking at least 30 minutes before the measurement. The measurement is taken on the left arm if possible.

The information is stored in 1 parquet file: blood_pressure.parquet

from pheno_utils import PhenoLoader

dl = PhenoLoader('blood_pressure', age_sex_dataset=None)
dl

DataLoader for blood_pressure with
21 fields
1 tables: ['blood_pressure']

dl.dict

	field_string	description_string	parent_dataframe	relative_location	value_type	units	sampling_rate	item_type	array	cohorts	data_type	debut	pandas_dtype
tabular_field_name
collection_date	Collection date (YYYY-MM-DD)	Collection date (YYYY-MM-DD)	NaN	blood_pressure.parquet	Time	Time	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	datetime64[ns]
collection_timestamp	Collection timestamp	Collection timestamp	NaN	blood_pressure.parquet	Time	Time	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	datetime64[ns, Asia/Jerusalem]
timezone	Timezone	Timezone	NaN	blood_pressure.parquet	Continuous	NaN	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	object
lying_blood_pressure_diastolic	Lying diastolic blood pressure	Lying diastolic blood pressure	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
lying_blood_pressure_pulse_rate	Lying blood pressure pulse rate	Lying blood pressure pulse rate	NaN	blood_pressure.parquet	Continuous	bpm	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
lying_blood_pressure_systolic	Lying systolic blood pressure	Lying systolic blood pressure	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
sitting_blood_pressure_diastolic	Sitting diastolic blood pressure	Sitting diastolic blood pressure	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
sitting_blood_pressure_pulse_rate	Sitting blood pressure pulse rate	Sitting blood pressure pulse rate	NaN	blood_pressure.parquet	Continuous	bpm	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
sitting_blood_pressure_systolic	Sitting systolic blood pressure	Sitting systolic blood pressure	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
standing_one_min_blood_pressure_diastolic	Standing one minute diastolic blood pressure	Standing one minute diastolic blood pressure	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
standing_one_min_blood_pressure_pulse_rate	Standing one minute blood pressure pulse rate	Standing one minute blood pressure pulse rate	NaN	blood_pressure.parquet	Continuous	bpm	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
standing_one_min_blood_pressure_systolic	Standing one minute systolic blood pressure	Standing one minute systolic blood pressure	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
standing_three_min_blood_pressure_diastolic	Standing three minute diastolic blood pressure	Standing three minute diastolic blood pressure	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
standing_three_min_blood_pressure_pulse_rate	Standing three minute blood pressure pulse rate	Standing three minute blood pressure pulse rate	NaN	blood_pressure.parquet	Continuous	bpm	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
standing_three_min_blood_pressure_systolic	Standing three minute systolic blood pressure	Standing three minute systolic blood pressure	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	float
blood_pressure_hand	Blood pressure hand	Hand used to peform blood pressure reading	NaN	blood_pressure.parquet	Categorical (single)	NaN	NaN	Data	Single	10K	Tabular	2022-06-12 00:00:00	category
blood_pressure_letter_to_physician	Blood pressure letter to physician	Notic letter to the participant to pass onto a...	NaN	blood_pressure.parquet	Categorical (single)	NaN	NaN	Data	Single	10K	Tabular	2022-06-12 00:00:00	category
sitting_second_blood_pressure_diastolic	Sitting second diastolic blood pressure	A second blood pressure reading is performed w...	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2022-06-12 00:00:00	float
sitting_second_blood_pressure_pulse_rate	Sitting second blood pressure pulse rate	A second blood pressure reading is performed w...	NaN	blood_pressure.parquet	Continuous	bpm	NaN	Data	Single	10K	Tabular	2022-06-12 00:00:00	float
sitting_second_blood_pressure_systolic	Sitting second systolic blood pressure	A second blood pressure reading is performed w...	NaN	blood_pressure.parquet	Continuous	mmHg	NaN	Data	Single	10K	Tabular	2022-06-12 00:00:00	float
dizziness	Dizzness after standing	Self reported dizziness once a person stands u...	NaN	blood_pressure.parquet	Categorical (single)	NaN	NaN	Data	Single	10K	Tabular	2019-01-29 00:00:00	category