Characteristics of skin color in Japanese healthy subjects and patients with cardiac or pulmonary disease: influence of blood pressure and hemoglobin concentration on skin color

Characteristics of skin color in Japanese healthy subjects and patients with cardiac or pulmonary disease: influence of blood pressure and hemoglobin concentration on skin color - Characteristics of skin color in Japanese healthy subjects and patients with cardiac or pulmonary disease: influence of blood pressure and hemoglobin concentration on skin color

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000049660

Enrollment

250

Registered

2022-12-06

Start date

2022-12-07

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy, hypertension, COPD, interstitial pneumonia

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Japanese 2. 20 years-old<= 3. Person who takes blood exam. on the measured day 4. Stable underlying disease (for example, hypertension) 5. Persons who have been fully informed and have given written consent of their own free will

Exclusion criteria

Exclusion criteria: 1. Skin lesions (rash, trauma, scarring, etc.) at the measurement site (forehead, forearms). 2. Diseases that cause pigmentation (hyperthyroidism, liver cirrhosis, chronic renal failure, etc.) 3. Inability to remain at rest during skin color measurement 4. Persons deemed inappropriate by the principal investigator/assigned investigator

Design outcomes

Primary

Measure	Time frame
Skin color (Lab*) in the forehead and forearm	—

Countries

Japan

Contacts

Public ContactTomoko Kutsuzawa

Tokai University School of Medicine, Faculty of Nursing

tkutsu@is.icc.u-tokai.ac.jp0463-93-1121

Outcome results