Table 2.
Data collection, information sources and follow-up
| Variables | Data collection | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Baseline | *Follow up from recruitment | ||||||||
| Clinical dependent variables | Measurement instrument | Type of response | Scoring (total and per item) | Range | Before intensive phase | After intensive phase | 3 months | 6 months | 12 months |
| Qual ity of Life | WOMAC (Batl le, 1999) | Likert (0=none to 4=very much) | TOTAL=24 17= functional l imitation 5=pain 2= sti ffness | 0-96 | X | X | X | X | X |
| Pain | ICOAP (Mai l lafert, 2009) | Likert (0=none to 4=very much) | TOTAL = 11 5= constant pain 6= intermittent pain | 0-44 | X | X | X | X | X |
| Weight (in Kg.)* | Scale at the PCC | Quantitative (kg.) | - | 0 - ∞ | X | X | X | X | X |
| Physical Activity | IPAQ (Puig, 2012) | Duration + Frequency of Moderate to Intense | TOTAL= 7 | 0 - 3000 MET | X | X | X | X | X |
| Physical Activity* | Pedometer | Quantitative | - | 0 - ∞ | |||||
| Nutrition | PREDIMED (Mediterranean Diet Adherence Questionnaire | Dichotomous (YES= 1 point NO= 0 points) | TOTAL = 14 12= frequency of consumption of foods 2= Mediterranean food habits | 0-14 | X | X | X | X | X |
| Other Variables | |||||||||
| Socio-demographic | |||||||||
| Age, gender, educational level, work status, number of children | Ad-hoc Questionnaire | Nominal | - | - | - | X | |||
| Clinical | - | ||||||||
| Drug Prescription | Ad-hoc Questionnaire | Nominal | 1 | - | X | X | X | X | X |
| Diagnostic tests | Ad-hoc Questionnaire | Nominal | 1 | - | X | X | |||
| Waist Circumference | Ad-hoc Questionnaire | Quantitative (cm.) | 1 | - | X | X | X | X | X |
| Height | Ad-hoc Questionnaire | Quantitative (cm.) | 1 | - | X | X | |||
| Comorbidities | Ad-hoc Questionnaire | Nominal | 1 | - | X | X | X | X | X |
| Duration of Disease in Years | Ad-hoc Questionnaire | Quantitative (years) | 1 | - | X | ||||
| Duration Knee Osteoarthritis in | Ad-hoc Questionnaire | Quantitative (years) | 1 | - | X | ||||
| Costs-related | - | ||||||||
| Direct Medical | - | ||||||||
| Cost of coaching in osteoarthrosis | Ad-hoc Questionnaire | Quantitative (euros) | - | - | X | X | X | X | X |
| Cost of visits to the GP | Ad-hoc Questionnaire | Quantitative (euros) | - | - | X | X | X | X | X |
| Cost of visits to the nurse | Ad-hoc Questionnaire | Quantitative (euros) | - | - | X | X | X | X | X |
| Cost of visits to the physiotherapist | Ad-hoc Questionnaire | Quantitative (euros) | - | - | X | X | X | X | X |
| Cost of visits to special ist MD | Ad-hoc Questionnaire | Quantitative (euros) | - | - | X | X | X | X | X |
| Cost of Medical Tests | Ad-hoc Questionnaire | Quantitative (euros) | - | - | X | X | X | X | X |
| Cost of Pharmacological | Ad-hoc Questionnaire | Quantitative (euros) | - | - | X | X | X | X | X |
| Operating Costs of the PCC | Ad-hoc Questionnaire | Quantitative (euros) | - | - | X | X | X | X | X |
| Cost of Disposable Medical Equipment | Ad-hoc Questionnaire | Quantitative (euros) | - | - | X | X | X | X | X |
| Cost of transport (ambulance) | Ad-hoc Questionnaire | Quantitative (euros) | - | X | X | X | X | X | |
| Cost of Home Assistance | Ad-hoc Questionnaire | Quantitative (euros) | - | X | X | X | X | X | |
| Indirect Medical | - | ||||||||
| Costs due to loss of productivity (days of sick leave) | Ad-hoc Questionnaire | Uantitative (euro | - | X | X | X | X | X | |
* Monthly.