Demographic details of questionnaire respondents versus those providing MDS
| Variable | Category | Response type | OR/mean difference (95% CI) | |
| MDS (n=470) | Completed questionnaire (n=835) | |||
| Gender | Male | 247 (53%) | 401 (49%) | OR 1.00 |
| Female | 219 (47%) | 417 (51%) | OR 1.17 (0.93 to 1.47) | |
| Practice area deprivation | Most deprived | 121 (26%) | 181 (22%) | OR 0.63 (0.45 to 0.89) |
| Second most deprived | 106 (23%) | 156 (19%) | OR 0.62 (0.44 to 0.88) | |
| Mid-deprived | 85 (18%) | 202 (24%) | OR 1.00 | |
| Second least deprived | 84 (18%) | 160 (19%) | OR 0.80 (0.56 to 1.16) | |
| Least deprived | 73 (16%) | 135 (16%) | OR 0.78 (0.53 to1.14) | |
| Practice type | Urban | 254 (56%) | 449 (54%) | OR 1.00 |
| Semirural | 155 (34%) | 275 (33%) | OR 1.00 (0.78 to 1.29) | |
| Rural | 43 (10%) | 103 (13%) | OR 1.36 (0.92 to 2.00) | |
| Mean (SD) years since qualification | 21.64 (10.03) | 18.40 (10.33) | Mean difference = −3.24 (-2.06 to- 4.42) | |
| Mean (SD) number of GPs in respondent’s practice | 6.44 (3.67) | 6.44 (3.20) | Mean difference = <0.01 (−0.38 to 0.39) | |
| Information only requested in questionnaire | ||||
| Type of GP | GP partner | – | 656 (79%) | – |
| Salaried GP | – | 151 (18%) | ||
| Locum GP | – | 20 (2%) | ||
| Other | – | 5 (1%) | ||
| GP with special interest in musculoskeletal conditions | – | 50 (6%) | – | |
| Received postgraduate education about CKP | – | 319 (39%) | – | |
| Personal experience of CKP | – | 166 (20%) | – | |
Maximum missing data for any cell were 6%.
CKP, chronic knee pain;GP, general practitioner; MDS, minimum data set.