Table 3 Multi-level logistic regression analysis of plasma calcium analyses in primary care in the county of Skaraborg, Sweden

Fixed effects

OR (95%CI)

OR (95%CI)

OR (95%CI)

OR (95%CI)

Patient

   Female

REF

REF

REF

   Male

0,80 (0,77-0,83)

0,80 (0,77-0,83)

0,80 (0,77-0,83)

   P-Ca test 2004

1,44 (1,37-1,51)

1,44 (1,36-1,51)

1,44 (1,37-1,51)

   Risc score

   Group 1

REF

REF

REF

   Group 2

2,40 (2,15-2,70)

2,43 (2,18-2,71)

2,40 (2,14-2,68)

   Group 3

4,51 (4,08-5,04)

4,56 (4,13-5,06)

4,51 (4,08-4,97)

   Group 4

8,92 (8,11-9,87)

9,01 (8,14-9,96)

8,91 (8,12-9,78)

   Group 5

25,8 (23,5-28,5)

26,1 (23,7-28,8)

25,8 (23,5-28,4)

Doctor

   Female

REF

REF

   Male

0,93 (0,78-1,09)

0,95 (0,78-1,24)

   Preregistration house officer

1,48 (1,00-2,00)

1,51 (1,07-2,05)

   House officer

1,69 (1,35-2,24)

1,57 (1,26-2,09)

   GP < 46 year

1,30 (1,02-1,76)

1,16 (0,93-1,60)

   GP ≥ 46 year

REF

REF

   Locum < 46 year

0,84 (0,61-1,08)

0,78 (0,58-1,03)

   Locum ≥ 46 year

0,73(0,57-0,94)

0,69(0,51-0,89)

HCC

   Number groups include P-Ca

   Group 1

REF

   Group 2

2,59 (1,56-3,53)

   Group 3

2,79 (1,25-5,09)

Random effects

Variance (95%CI)

Variance (95%CI)

Variance (95%CI)

Variance (95%CI)

HCC (Intercept)

0,28 (0,15-0,58)

0,32 (0,16-0,67)

0,32 (0,18-0,66)

0,36 (0,16-0,80)

   MOR _HCC

1,65 (1,44-2,07)

1,71 (1,47-2,18)

1,72 (1,49-2,17)

1,77 (1,48-2,34)

Physician (Intercept)

0,49 (0,41-0,59)

0,59 (0,50-0,71)

0,52 (0,43-0,62)

0,52 (0,43-0,63)

   MOR _Physician

1,95 (1,85-2,08)

2,09 (1,96-2,24)

1,98 (1,87-2,12)

1,99 (1,88-2,13)

HCC and Physician (Intercept)

0,77

0,91

0,84

0,88

   MOR _{HCC+Physician}

2,31

2,48

2,4

2,45

DIC

89 550

76 438

76 427

76 427