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Table 1 Distribution of prescriber characteristics within the entire general practice cohort. The mean and standard deviation (SD) of the variable “long-term user proportion”* is reported for each prescriber characteristic

From: General practice variation when initiating long-term prescribing of proton pump inhibitors: a nationwide cohort study

 

N all practices

Mean (SD)

N single-handed

Mean (SD)

N partnership

Mean (SD)

Practice organisation

 Single-handed

1041

0.37 (0.15)

1041

0.37 (0.15)

0

-

 Partnership

878

0.33 (0.09)

0

-

878

0.33 (0.09)

Training practice

 No

1286

0.36 (0.14)

823

0.37 (0.16)

463

0.33 (0.10)

 Yes

633

0.35 (0.11)

218

0.36 (0.14)

415

0.34 (0.09)

Number of GPs

 1

1041

0.37 (0.15)

1041

0.37 (0.15)

0

-

 2

414

0.33 (0.11)

0

-

414

0.33 (0.11)

 3

246

0.33 (0.09)

0

-

246

0.33 (0.09)

 4

129

0.33 (0.08)

0

-

129

0.33 (0.08)

 5

56

0.33 (0.08)

0

-

56

0.33 (0.08)

 >5

33

0.33 (0.06)

0

-

33

0.33 (0.06)

GP age group

 Under 45 years

121

0.32 (0.11)

48

0.33 (0.14)

73

0.31 (0.09)

 45-49 years

261

0.32 (0.09)

68

0.33 (0.11)

193

0.31 (0.08)

 50-54 years

455

0.33 (0.11)

150

0.33 (0.14)

305

0.32 (0.09)

 55-59 years

497

0.36 (0.13)

285

0.36 (0.15)

212

0.34 (0.09)

 60-64 years

385

0.39 (0.16)

313

0.39 (0.16)

72

0.38 (0.11)

 65 years or above

200

0.40 (0.15)

177

0.40 (0.15)

23

0.40 (0.13)

GP gender

 Male

875

0.38 (0.15)

735

0.38 (0.15)

140

0.38 (0.11)

 Predominantly male

193

0.34 (0.08)

0

-

193

0.34 (0.08)

 Equally mixed

302

0.32 (0.09)

0

-

302

0.32 (0.09)

 Predominantly female

153

0.32 (0.08)

0

-

153

0.32 (0.08)

 Female

396

0.33 (0.14)

306

0.34 (0.15)

90

0.30 (0.09)

Practice location

 Capital area

602

0.34 (0.14)

412

0.36 (0.15)

190

0.32 (0.11)

 Provincial city

760

0.35 (0.13)

388

0.37 (0.16)

372

0.32 (0.09)

 Rural area

557

0.37 (0.12)

241

0.39 (0.15)

316

0.35 (0.09)

Patients per GP

 <1350

575

0.35 (0.13)

192

0.38 (0.16)

383

0.33 (0.10)

 1350-1575

453

0.36 (0.14)

249

0.38 (0.17)

204

0.34 (0.09)

 1576-1750

414

0.35 (0.13)

247

0.37 (0.16)

167

0.33 (0.08)

 >1750

477

0.35 (0.13)

353

0.36 (0.13)

124

0.32 (0.10)

  1. *The “long-term user proportion” is defined as the proportion of adult first time users of PPI within the practice who redeemed more than 60 DDDs of PPI within six months in 2011