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Table 2 SGRQ-C items grouped by corresponding CAT severity category

From: Creating scenarios of the impact of copd and their relationship to copd assessment test (CAT™) scores

Low Impact

(CAT 1-10)

Medium Impact

(CAT 11-20)

High Impact

(CAT 21-30)

Very High Impact

(CAT 31-40)

Breathless several days a week

(-3.86)

Housework takes long or stop for rests

(-0.91)

Chest causes lot of problems or most important problem

(0.15)

Cough causes tiredness

(1.13)

Breathless walking up hills

(-3.72)

Breathless most days a week

(-0.80)

3 or more attacks of chest trouble in last year

(0.20)

Takes a long time to get washed or dressed

(1.24)

Difficult to carry heavy loads, etc (-3.16)

Bring up phlegm several days a week

(-0.77)

Get afraid/panic when can't get breath

(0.21)

Breathless walking around home

(1.47)

Have to stop/slow down if hurry/walk fast

(-2.98)

Wheezing attacks only with chest infections

(-0.68)

Breathless walking on level ground outside the house

(0.32)

Chest trouble is a nuisance to family, friends (1.49)

Chest condition causes a few problems

(-2.91)

Cough several days a week

(-0.64)

Wheezing attacks several days a week

(0.36)

Cannot take bath/shower or takes long time (1.55)

Difficult to walk up hill, light gardening, etc

(-2.64)

Wheezing attacks a few days a month

(-0.35)

Cough and/or breathing embarrassing in public

(0.47)

Cannot go out for entertainment (1.87)

Most days are good in average week

(-2.63)

1-2 attack of chest trouble in last year

(-0.30)

Cough and/or breathing disturbs sleep

(0.49)

Coughs hurts (2.11)

Stops 1 or 2 things

(-2.15)

Bring up phlegm most days a week

(-0.21)

Feel not in control of chest problem (0.49)

Cannot do housework

(2.20)

Breathless walking up a flight of stairs

(-2.15)

A few good days in an average week

(-0.19)

Wheezing attacks most days a week

(0.58)

Have become frail or invalid because of chest (2.42)

Cough only with chest infections

(-2.06)

Cough most days a week

(-0.09)

Stops patient doing most things they want to do (0.60)

Cannot go out of house for shopping

(2.69)

Walk slower than others or stop for rests

(-1.52)

Breathless when bending over

(-0.07)

Breathless getting washed/dressed (0.62)

Stops patient doing everything they want to do (3.11)

Breathless only with chest infections

(-1.52)

Wheeze worse in morning

(-0.02)

No good days in average week (0.63)

Cannot move far from bed or chair (3.40)

Get exhausted easily

(-1.47)

 

Breathless when talking

(0.81)

 

Walk slowly or stop walking one flight of stairs

(-1.14)

 

Exercise felt not to be safe

(0.92)

 

Bring up phlegm only with chest infections

(-1.07)

 

Everything seems too much of an effort

(0.92)

 

Usually cannot play sports or games

(-1.05)

   
  1. Figure in bold brackets is the SGRQ-C item's severity expressed in logits; low score (negative) = mild, high score (positive) = severe