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Table 1 Distribution of practice characteristics within the entire general practice cohort in absolute numbers (N); the mean and standard deviation of the variable “spirometry proportion”* is reported for each practice characteristic

From: General practice variation in spirometry testing among patients receiving first-time prescriptions for medication targeting obstructive lung disease in Denmark: a population-based observational study

  

All general practices

Single-handed practices

Partnership practices

  

N

Mean (SD)

N

Mean (SD)

N

Mean (SD)

Partnership practice

Yes

773

54.4 (16.8)

-

-

773

54.4 (16.8)

No

1207

48.6 (22.7)

1207

48.6 (22.7)

-

-

Training practice

Yes

566

53.7 (18.0)

239

53.8 (20.2)

327

53.7 (16.1)

No

1414

49.7 (21.8)

968

47.3 (23.2)

446

54.8 (17.3)

No of doctors

1

1207

48.6 (22.8)

1207

48.6 (22.8)

-

-

 

2

388

54.2 (18.7)

-

-

388

54.2 (18.7)

 

3

213

53.4 (15.6)

-

-

213

53.4 (15.6)

 

4

94

57.2 (13.2)

-

-

94

57.2 (13.2)

 

5

52

54.5 (14.2)

-

-

52

54.5 (14.2)

 

>5

23

55.0 (11.3)

-

-

23

55.0 (11.3)

Age

       

(mean for partnership practices)

<45

106

56.0 (19.1)

67

52.2 (18.8)

39

62.5 (18.1)

 

45–49

238

55.8 (18.1)

122

54.5 (20.0)

116

57.2 (15,8)

 

50–54

516

54.2 (18.8)

228

52.4 (21.4)

288

55.7 (16.3)

 

55–59

609

49.7 (20.9)

366

48.3 (23.3)

243

51.7 (16.4)

 

60–64

390

46.4 (22.4)

314

45.9 (23.3)

76

50.4 (17.8)

 

>65

121

41.2 (23.9)

110

40.7 (24.3)

11

46.6 (−)

Gender

Male

1017

49.4 (22.1)

873

48.7 (22.7)

144

53.4 (17.5)

        Predominantly male

189

54.4 (15.0)

-

 

189

54.4 (15.0)

         Equal male/female

283

54.9 (18.6)

-

 

283

54.9 (18.6)

       Predominantly female

98

54.3 (13.6)

-

 

98

54.3 (13.6)

 

Female

393

49.2 (22.3)

334

48.3 (23.0)

59

54.0 (17.1)

Patients per doctor

<1347

513

49.8 (22.8)

227

43.9 (21.8)

286

54.4 (18.2)

 

1347–1575

489

51.0 (19.8)

277

49.1 (21.8)

212

53.5 (16.4)

 

1576–1756

489

52.3 (20.8)

307

49.9 (23.4)

182

56.5 (14.6)

 

>1756

489

50.3 (19.7)

396

49.9 (20.3)

93

51.9 (17.0)

  1. *The “spirometry proportion” is defined as the proportion of adult patients within the practice receiving first-time prescriptions for medication targeting obstructive lung disease who had spirometry performed in the 18-month interval.