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Table 1 Screening rates by treatment arms in first year

From: Physician versus non-physician delivery of alcohol screening, brief intervention and referral to treatment in adult primary care: the ADVISe cluster randomized controlled implementation trial

 

Average unique visits per month

Average screens per month

Average % screened

p value

Best month N screened

Best month % screened

p value 

PCP

NPP & MA

Control

PCP

NPP & MA

Control

PCP

NPP & MA

Control

PCP

NPP &MA

Control

PCP

NPP & MA

Control

Medical center

 1

1464

2797

2928

41

1107

148

2.80

39.56

5.07

a,b,c

161

1505

391

11.47

46.88

13.81

a,b’,c

 2

1088

1424

1392

51

824

24

4.67

57.84

1.73

a,b,c

102

1039

68

9.31

66.65

5.00

a, b,c

 3

925

748

1779

58

197

403

6.28

26.33

22.64

a,b,c

126

467

697

13.15

55.12

35.49

a,b,c

 4

4318

4536

1639

552

2962

4

12.77

65.29

0.26

a,b,c

861

3681

23

19.79

71.71

1.18

a,b,c

 5

1569

884

1717

509

411

107

32.43

46.51

6.22

a,b,c

635

723

235

37.90

64.21

14.61

a,b,c

 6

3124

7668

3372

177

3705

29

5.68

48.32

0.85

a,b,c

332

5644

63

10.15

74.68

2.02

a,b,c

 7

3336

2452

1898

339

225

6

10.17

9.16

0.33

a,b,c

980

636

25

26.04

29.42

1.49

a,b,c’

 8

3866

4067

5686

565

2778

167

14.62

68.32

2.94

a,b,c

964

3355

350

28.41

75.48

5.81

a,b,c

 9

5111

955

2531

405

142

8

7.92

14.86

0.33

a,b,c

608

254

41

12.36

31.59

1.76

a,b,c

 10

4297

5034

6031

345

2827

79

8.03

56.17

1.32

a,b,c

637

3938

195

15.07

73.16

3.39

a,b,c

 11

6636

3715

3125

239

2223

138

3.60

59.85

4.41

a,b,c

355

2586

443

5.04

70.78

15.08

a,b,c

All

35,519

34,167

31935

3280

17397

1113

9.23

50.92

3.49

a,b,c

3,729

20,445

1918

10.68

60.07

6.04

a,b,c

  1. Differences in screening rates between each of the two intervention arms vs. Control arm as well as between the two intervention arms were examined by hand calculating z statistics for comparisons of two proportions
  2. ap<0.0001, NPP & MA vs. Control; bp<0.0001, PCP vs. Control; b’p<0.05, PCP vs. Control; cp<0.0001, NPP & MA vs. PCP; c’p<0.01, NPP & MA vs. PCP