DEPRESSION

Depression (also known as Major Depressive Disorder) is a common but serious mental health condition that profoundly affects a person’s feelings, thoughts, and actions. It’s more than just feeling “sad” or “blue” for a day or two.


What it Is

At its core, depression is characterized by a persistent, deep feeling of sadness and/or a significant loss of interest or pleasure in almost all daily activities (like hobbies, socializing, or work).


How it Affects a Person

For a person to be experiencing depression, these feelings must last for a minimum of two weeks and significantly interfere with their daily life. Other common signs and symptoms often experienced include:

  • Changes in energy and sleep: Feeling extremely tired (fatigue) or having trouble sleeping (insomnia) or sleeping too much (hypersomnia).
  • Changes in appetite: Significant weight loss or gain.
  • Difficulty concentrating: Trouble making decisions, focusing, or remembering things.
  • Negative self-talk: Feeling worthless or overly guilty.
  • Physical changes: Feeling restless or slowed down to an extent noticeable by others.
  • Thoughts of death or suicide.

PHQ

Definition

The Patient Health Questionnaire-2 (PHQ-2) is a brief initial screening tool for depression.

The Patient Health Questionnaire-9 (PHQ-9) contains is a 9-item, patient self-report depression assessment.

  1. Little Interest or pleasure in doing things
  2. Feeling down, depressed, or hopeless
  3. Trouble falling or staying asleep, or sleeping too much
  4. Feeling tired or having little energy
  5. Poor appetite or overeating
  6. Feeling bad about yourself – or that you are a failure or have let yourself or your family down
  7. Trouble concentrating on things, such as reading the newspaper or watching television
  8. Moving or speaking so slowly that other people could have noticed. Or the opposite - being so fidgety or restless that you have been moving around a lot more than usual
  9. Thoughts that you would be better off dead, or of hurting yourself in some way
  10. If you indicated any problems in the previous questions, how difficult have these problems made it for you to do your work, take care of things at home, or get along with other people

Form

[ ] Form 1
[X] Form 2

Source

Interview, Mail-Out (participant only)

Details

Interviewers should read the following introduction prior to administering the PHQ: “Over the LAST 2 WEEKS, how often have you been bothered by the following problems?”

If either of the first 2 questions are coded either ‘1 - Several Days’, ‘2 - More Than Half Of The Days’, or ‘3 - Nearly Every Day’, then proceed to ask the remaining PHQ items.

If both of the first 2 questions are coded ‘0 - Not at all’, code remaining PHQ items as ‘81 - Not Applicable’ and skip to next section of interview.

The PHQ should not be administered to a significant other, or any other proxy. If the individual is unable to provide data, use code ‘82. Not Applicable: No data from person with TBI’.

Every effort should be made to obtain the PHQ assessments, however, if any items can not be assessed, use code ‘99. Unknown’. Do not leave blanks.

Reference

PHQ9 Pfizer

Characteristics

Participant responses to these variables may be affected by the COVID-19 pandemic starting in March of 2020.

On 4/1/2022, the PHQ-2 Screener was implemented.

Variables

Form Type

Variable

ID

Question

History

Form 2

PHQBadF

733

f. Feeling bad about yourself or that you are a failure or have let yourself or your family down:

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Form 2

PHQConcentrateF

733

g. Trouble concentrating on things, such as reading the newspaper or watching television:

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Form 2

PHQDeadF

733

i. Thoughts that you would be better off dead or hurting yourself in some way:

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Form 2

PHQDifficultF

732

j. How difficult have these problems made it for you to do your work, take care of things at home, or get along with other people?

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Form 2

PHQDownF

733

b. Feeling down, depressed, or hopeless:

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Form 2

PHQEatF

733

e. Poor appetite or overeating:

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Form 2

PHQPleasureF

733

a. Little interest or pleasure in doing things:

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Form 2

PHQSleepF

733

c. Trouble falling or staying asleep, or sleeping too much:

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Form 2

PHQSlowF

733

h. Moving or speaking so slowly that other people could have noticed. Or the opposite - being so fidgety or restless that you have been moving around a lot more than usual:

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Form 2

PHQTiredF

733

d. Feeling tired or having little energy:

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Codes and Values

ID

Code

Description

732

0

Not Difficult at All

732

1

Somewhat Difficult

732

2

Very Difficult

732

3

Extremely Difficult

732

66

Variable Did Not Exist

732

81

Not Applicable: No problems

732

82

Not Applicable: No data from person with TBI

732

99

Unknown

733

0

Not at All

733

1

Several Days

733

2

More Than Half of the Days

733

3

Nearly Every Day

733

66

Variable Did Not Exist

733

81

Not Applicable

733

82

Not Applicable: No data from person with TBI

733

99

Unknown

History

Date

Description

2021-01-15

Added CHARACTERISTICS : "Participant responses to these variables may be affected by the onset of the COVID-19 pandemic in March of 2020. "

2022-04-01

Added Code : "8-Not Applicable" to items c. - i.

2022-04-01

On 4/1/2022, the PHQ-2 Screener was implemented.

PHQ - CALCULATED

Variables

Form Type

Variable

ID

Question

History

Form 2

PHQ9TOTF

731

Patient Health Questionnaire Total Score

2007-10-01 - Variable Added
2013-10-01 - Variable Removed
2017-10-01 - Variable Added

Codes and Values

ID

Code

Description

731

666

Variable Did Not Exist

731

888

Not Applicable: No data from person with TBI

731

999

Unknown

History

No history found for the Domain.