| IF whether has pain when walking uphill or hurrying = [yes, sometimes, never]

| [HeAnb = [1, 3, 4]]

| |

| | HEAND

| | Do you get it when you walk at an ordinary pace on the level?

| | 1 Yes

| | 2 No

| | 3 Sometimes / Occasionally

| | 4 Never walks at an ordinary pace on the level

| |

| END OF FILTER

| IF pain when walking at ordinary pace on the level = sometimes [HeAnd = 3]

| |

| | HEANE

| | Does this happen on most occasions?

| | 1 Yes

| | 2 No

| |

| END OF FILTER

| IF (whether has pain when walking uphill or hurrying = yes OR whether this happens on

| most occasions = yes OR pain when walking at ordinary pace = yes OR whether this happens

| on most occasions = yes)[(HeAnb = 1 OR HeAnc = 1 OR HeAnd = 1 OR HeAne = 1)]

| |

| | HEANF

| | What do you do if you get it while you are walking? Do you...

| | INTERVIEWER: Read out...

| | 1 ...stop,

| | 2 slow down,

| | 3 or, do you carry on?

| |

| | IF action taken when pain occurs while walking = [stop, slow down] [HeAnf = [1, 2]]

| | |

| | | HEANG

| | | If you stand still does the pain go away or not?

| | | INTERVIEWER: If respondent unsure, PROBE - 'What happens to the pain on most

| | | occasions?'

| | | 1 Pain goes away

| | | 2 Pain doesn't go away

| | |

| | | IF whether pain goes away or remains = pain goes away [HeAng = 1]

| | | |

| | | | HEANH

| | | | How soon does the pain go away? Does it go in...

| | | | INTERVIEWER: Read out...

| | | | 1 ...10 minutes or less,

| | | | 2 or, more than 10 minutes?

| | | |

| | | | IF duration of pain = 10 minutes or less [HeAnh = 1]

| | | | |

| | | | | Will you show me where you get this pain or discomfort?