Table 4.
Regression coefficients (standard errors) of general practitioner and patient characteristics (number of general practitioners = 193) for mental health components score
| Parameters (reference category) |
Multilevel estimates for the main model |
|||
|---|---|---|---|---|
|
Male |
Female |
|||
|
Complete cases |
Imputed full model |
Complete cases |
Imputed full model |
|
| (n = 768) | (n =1018) | (n =823) | (n =1163) | |
|
Fixed effects |
|
|
|
|
| Intercept |
35.52 |
35.09 |
32.80 |
34.16 |
|
Patient characteristics |
|
|
|
|
| Age, years |
|
|
|
|
| 40-59 (18–39) |
0.48 (2.64) |
0.31 (2.49) |
2.83 (1.96) |
2.42 (1.57) |
| >59 (18–39) |
1.89 (2.68) |
1.68 (2.51) |
6.33 (1.99)† |
5.62 (1.64)‡ |
| Good or very good health (very bad, bad or fair health) |
6.92 (0.75)‡ |
6.84 (0.79)‡ |
7.31 (0.71)‡ |
7.33 (0.62)‡ |
| Own home & car (rented & don’t own car) |
5.04 (1.87)† |
3.42 (1.71)* |
1.37 (1.48) |
1.50 (1.29) |
| Own home only (rented & don’t own a car) |
3.24 (3.12) |
0.30 (2.77) |
0.47 (1.72) |
0.27 (1.61) |
| Own car only (rented & don’t own car) |
3.04 (1.98) |
1.55 (1.93) |
0.67 (1.66) |
0.67 (1.43) |
| College / university (elementary / high school) |
0.78 (0.79) |
0.65 (0.78) |
0.07 (0.79) |
0.00 (0.72) |
| Employed patients (unemployed1) |
2.95 (1.24)* |
3.40 (1.18)† |
1.42 (1.01) |
1.16 (1.03) |
| Retired patients (unemployed1) |
4.95 (1.20)‡ |
5.43 (1.10)‡ |
2.62 (0.89)† |
2.86 (0.87)† |
| Married/cohabiting (single/separated/divorced/widowed) |
0.91(0.95) |
0.96 (1.03) |
2.29 (0.77)† |
2.43 (0.73)‡ |
| Two or more conditions (one condition) |
0.11 (0.74) |
−0.05 (0.77) |
−0.96 (0.76) |
−1.56 (0.73)* |
| Smoker (non-smoker) |
1.62 (1.35) |
1.16 (1.39) |
−4.20 (1.17)‡ |
−3.99 (1.08)‡ |
| Overall satisfaction with care |
0.60 (0.35) |
0.56 (0.36) |
1.04 (0.34)† |
0.84 (0.34)* |
|
General Practitioner characteristics |
|
|
|
|
| Female (Male) |
0.55 (1.06) |
0.41 (1.04) |
−1.25 (0.81) |
−0.74 (0.75) |
| Overseas qualified (qualified in Australia) |
−1.87 (0.96) |
−1.73 (0.98) |
−0.28 (0.86) |
0.02 (0.85) |
| Years in the current practice |
|
|
|
|
| 6–15 (< 6) |
−1.32 (0.99) |
−0.82 (0.97) |
0.66 (0.91) |
0.90 (0.88) |
| > 15 (< 6) |
−0.04 (0.97) |
0.02 (0.99) |
0.18 (0.97) |
0.36 (1.02) |
| Years as a GP |
|
|
|
|
| 19–24 (< 19) |
0.35 (1.03) |
0.51 (1.04) |
0.88 (0.91) |
0.49 (0.87) |
| > 24 (< 19) |
0.58 (1.07) |
0.44 (1.13) |
0.23 (1.02) |
−0.52 (1.04) |
| Size 1–3 GPs in the practice (4 or more GPs) |
−0.84 (0.78) |
−0.79 (0.80) |
−0.63 (0.77) |
−0.69 (0.69) |
| Urban practice (Rural practice) |
0.87 (0.76) |
0.93 (0.74) |
−0.34 (0.78) |
−0.32 (0.73) |
|
Random effects |
|
|
|
|
| Variance between general practitioners (standard errors) |
0.00 (0.00) |
0.92 (1.53) |
0.00 (0.00) |
0.30 (1.01) |
| % variance explained |
100 |
84.3 |
100 |
88.1 |
| Variance between patients (standard errors) |
96.08 (4.90)‡ |
97.67 (5.35)‡ |
95.10 (4.69)‡ |
96.36 (4.43)‡ |
| % variance explained | 16.6 | 16.4 | 22.9 | 22.3 |
Note: *P <0.05, † P <0.01, ‡ P<0.001.
1Includes patients looking for work, studying full-time, looking after family and unable to work due to sickness or disability.
Patient characteristics were collected independently using PACIC for the same respondents.