Completeness and Representativeness of the PHARMO General Practitioner (GP) Data: A Comparison with National Statistics

Figures & data

Figure 1 Number of persons registered in the PHARMO GP data at each year (2004–2020).

Table 1 Demographic Characteristics of the Population in PHARMO GP Data, the Netherlands and Nivel at January 1st, 2018

	PHARMO GP Data	The Netherlands	Nivel^Citation19	Std.diff
	N = 3,466,321	N = 17,181,084	N = 1,709,788
	%	%	%	GP vs NL	GP vs Nivel
Sex
Males	49.7	49.6	49.5	0.00	0.00
Females	50.3	50.4	50.5	0.00	0.00
Unknown	<0.5	0.0	0.0	0.01	0.01
Age (years)
0–4	4.2	5.1	4.2	−0.04	0.00
5–17	14.6	14.7	15.0	0.02	0.03
18–44	34.1	33.3	32.7	0.00	−0.02
45–64	28.0	28.2	29.1	0.00	−0.01
65–74	11.1	10.9	11.1	0.01	0.00
75–84	5.9	5.8	5.9	0.00	0.00
≥85	2.1	2.2	2.1	0.00	0.00
Unknown	<0.5	0.0	0.0	0.00	0.00
Degree of urbanisation
Extremely urbanized	25.7	23.3	n.a.	0.05	–
Strongly urbanized	23.6	25.0	n.a.	−0.03	–
Moderately urbanized	18.8	17.2	n.a.	0.04	–
Hardly urbanized	21.4	17.3	n.a.	0.10	–
Not urbanized	9.4	17.1	n.a.	−0.23	–
Unknown	1.1	0.0	n.a.	0.15	–
Deceased	0.42	0.89	n.a.	−0.06	–

Abbreviations: std.diff, standardized difference; n.a., not available.

Figure 2 Population pyramid of the PHARMO GP population (A) and the Dutch population (B) at January 1st, 2018.

Figure 3 Medication use per pharmacological subgroup (ATC 3rd level) in the PHARMO GP data and the Netherlands in 2018 with absolute std.diff ≥0.05.

Figure 4 Continued.

Figure 4 Symptoms and complaints (A) and diagnoses (B) per ICPC level in the PHARMO GP data and the Netherlands in 2018.

Meijer W, Verberne L, Weesie Y, et al. Zorg door de huisarts - Nivel Zorgregistraties Eerste Lijn: Jaarcijfers 2018 en trendcijfers 2014–2018 [General practice care - Nivel Primary Care Database: Annual figures 2018 and trend figures 2014-2018]. 2019.

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