| | | | 2 No

| | | |

| | | | IF whether advised to have surgery = yes [HePaf = 1]

| | | | |

| | | | | 1 Yes

| | | | | 2 No

| | | | |

| | | | END OF FILTER

| | | |

| | | END OF FILTER

| | |

| | END OF FILTER

| |

| END OF FILTER

END OF FILTER

IF (knee pain rating = [1 .. 5] AND ((type of arthritis = osteoarthritis) OR (type of arthritis at

Wave 1 = osteoarthritis)) AND (NOT (HeHip = [6 .. 10])))[(HeKne = [1…5] AND ((HeArt = 1) OR

(HeArt (Wave 1) = 1)) AND (NOT (HeHip = [6…10])))]

| HEKNEA

| Has your knee pain been bothering you for more than 3 months?

| 1 Yes

| 2 No

| IF whether had knee pain for over 3 months = yes [HeKnea = 1]

| |

| | HEKNEB

| | Has a doctor or nurse suggested that you receive physiotherapy or attend a supervised

| | exercise program for your knee pain?

| | 1 Yes

| | 2 No

| |

| | IF whether exercise / physiotherapy has been recommended for knee pain = yes

| | [HeKneb = 1]

| | |

| | | HEKNEC

| | | Did you see a physiotherapist or attend a supervised exercise program for your knee pain?

| | | 1 Yes

| | | 2 No

| | |

| | | IF whether attended physiotherapist / exercise program = yes [HeKnec = 1]

| | | |

| | | | HEPAK1

| | | | How well does the treatment control your pain?

| | | | 1 Very well

| | | | 2 Fairly well

| | | | 3 Not very well

| | | | 4 Not at all

| | | |

| | | END OF FILTER

| | |

| | END OF FILTER