Table 1.
The 40 HOOS items arranged in the five subscales Pain, Symptoms, Activities of Daily Living, Sport and Recreation Function and Hip Related Quality of Life. The corresponding WOMAC item numbers and KOOS item numbers are declared as well as SRM (standardized response mean) and mean relevance of each question. * these items were constructed by one of the authors (MK)
| HOOS Item nr | HOOS 2.0 | Mean Relevance | SRM | WOMAC item, nr | KOOS Item, nr |
| Pain | |||||
| P1 | How often do you experience hip pain? | 2.6 | 1.7 | P1 | |
| P3 | Pain straightening hip fully? | 3.0 | 1.8 | P3 | |
| P4 | Pain bending hip fully? | 2.3 | 1.8 | P4 | |
| P5 | Walking on a flat surface? | 2.7 | 1.4 | P1 | P5 |
| P6 | Going up or down stairs? | 2.0 | 1.6 | P2 | P6 |
| P7 | At night while in bed? | 2.7 | 1.5 | P3 | P7 |
| P8 | Sitting or lying? | 2.7 | 1.2 | P4 | P8 |
| P9 | Standing upright? | 2.3 | 1.2 | P5 | P9 |
| P11 | Walking on hard surface, ex. Asphalt, concrete? | 2.3 | 1.6 | * | |
| P12 | Walking on uneven ground? | 3.0 | 1.5 | ||
| Symptoms | |||||
| S2 | Do you feel grinding, hear clicking or any other type of noise when your hip moves? | 2.2 | 1.0 | S2 | |
| S6 | Severity of stiffness after first wakening in the morning? | 2.5 | 1.1 | S1 | S6 |
| S7 | Severity of stiffness after sitting/lying/resting later in the day? | 2.7 | 1.2 | S2 | S7 |
| S10 | Difficulty spreading your legs? | 1.7 | 1.4 | * | |
| S11 | Difficulty walking with long strides? | 2.3 | 1.3 | * | |
| ADL | |||||
| A1 | Descending stairs? | 2.3 | 1.5 | A1 | A1 |
| A2 | Ascending stairs? | 2.3 | 1.5 | A2 | A2 |
| A3 | Rising from sitting? | 2.7 | 1.3 | A3 | A3 |
| A4 | Standing? | 2.3 | 1.5 | A4 | A4 |
| A5 | Bending to floor/pick up an object? | 2.3 | 1.2 | A5 | A5 |
| A6 | Walking on flat surface? | 2.0 | 1.2 | A6 | A6 |
| A7 | Getting in/out of car? | 2.7 | 1.5 | A7 | A7 |
| A8 | Going shopping? | 2.0 | 1.3 | A8 | A8 |
| A9 | Putting on socks/stockings? | 2.7 | 1.2 | A9 | A9 |
| A10 | Rising from bed? | 2.3 | 1.1 | A10 | A10 |
| A11 | Taking off socks/stockings? | 2.0 | 0.9 | A11 | A11 |
| A12 | Lying in bed? | 2.0 | 1.3 | A12 | A12 |
| A13 | Getting in/out of bath/shower? | 1.3 | 0.9 | A13 | A13 |
| A14 | Sitting? | 1.7 | 1.1 | A14 | A14 |
| A15 | Getting on/off toilet? | 1.7 | 1.3 | A15 | A15 |
| A16 | With heavy domestic duties? | 2.3 | 1.2 | A16 | A16 |
| A17 | With light domestic duties? | 2.0 | 1.0 | A17 | A17 |
| Sport/Recreation | |||||
| SP1 | Difficulty squatting? | 2.7 | 1.0 | SP1 | |
| SP2 | Difficulty running? | 3.0 | 0.8 | SP2 | |
| SP4 | Difficulty twisting/pivoting on loaded leg? | 2.7 | 1.5 | SP4 | |
| SP6 | Difficulty walking on uneven ground? | 2.3 | 1.1 | * | |
| Hip Related QOL | |||||
| Q1 | How often are you aware of your hip problems? | 3.0 | 1.3 | Q1 | |
| Q2 | Have you modified your lifestyle to avoid potentially damaging activities to your hip? | 3.0 | 1.0 | Q2 | |
| Q3 | How much are you troubled with lack of confidence in your hip? | 2.7 | 1.3 | Q3 | |
| Q4 | In general, how much difficulty do you have with your hip? | 2.7 | 1.7 | Q4 |