Evaluation of general practitioners’ assessment of overweight among children attending the five-year preventive child health examination: A cross-sectional survey

Figures & data

Figure 1. Flowchart of inclusion of general practitioners and children.

Table I. Characteristics of the source population of general practitioners in the Central Denmark Region.

	Non-participating
	Participating GPs		GPs
	n	(%)	n	(%)	p-value
	165	(19)	700	(81)
Gender:
Male	66	(40)	451	62	< 0.001
Female	99	(60)	230	38
Age:
Mean (range)	50.7	(35-65)	53.3	(34-70)	< 0.001
Number of conducted five-year PCHEs per year:^1
Mean (range)	21	(4-104)	16	(1-80)	0.99
Type of practice:
Solo practice	38	(23)	184	(26)	0.2
Partnership practice	127	(77)	493	(71)	0.2
Unknown^2	0	(0)	23	(3)
Number of children on list:^3
Mean (range)	938	78-3364	830	19-3364	0.99

Notes: ¹Number of conducted PCHEs was assessed on the basis of solo practices. ²Type of practice not registered in data from the General Practice Administrative Authorities in the Central Denmark Region. ³The number of children on the list was assessed on the basis of all types of practices.

Table II. 2 × 2 table illustrating the analysis founding the basis for results in Table III.

GP assessed overweight	“Overweight” (based on Danish BMI growth charts)
	Yes	No	Total
Yes	103 (a)	68 (b)	171 (a + b)
No	44 (c)	920 (d)	964 (c + d)
	147 (a + c)	988 (b + d)	1,135 = N

Notes: Sensitivity = a/a + c = 103/147 = 0.70. Specificity = d/b + d = 920/988 = 0.93. PV = a/a + b = 103/171 = 0.6. NPV = d/c + d = 920/44 + 920 = 0.95.

Table III. Factors influencing GPs’ identification of overweight (n = 1135).

		Overweight
		Frequency (%)	Sensitivity	95% CI	p-value^4	Specificity	95% CI	p-value^4	PPV	95% CI	NPV	95% CI
GP assessment:
IS		11.9	73.0	64.7–80.2		92.9	91.1–94.4		58.5	50.7–66.0	96.2	94.8–97.2
DS		13.0	70.1	62.0–77.3		92.4	90.6–93.9		60.2	52.5–67.6	95.4	94.0–96.6
Plotted BMI:
IS
n = 714	Yes	12.0	77.9	67.7– 86.1	0.18	91.1	88.6–93.1	0.002	54.5	45.2–63.5	96.8	95.0–98.1
n = 417	No	11.8	67.3	52.5–80.0		96.2	93.7–97.9		70.2	55.1–82.7	95.7	93.1–97.5
DS	Yes	12.8	75.8	65.7–84.1	0.05	91.3	88.8–93.4	0.06	56.1	46.9–65.0	96.3	94.4–97.6
	No	13.4	60.7	46.8–73.5		96.4	93.9–98.0		72.3	57.4–84.3	94.1	91.1–96.2
Familiar:^1
IS
n = 925	Yes	12.1	75.0	65.9–82.7	0.9	92.6	90.6–94.3	0.3	58.3	49.8–66.5	96.4	94.9–97.6
n = 201	No	11.0	68.2	45.1–86.1		95.0	90.7–97.7		62.5	40.6–81.2	96.0	92.0–98.4
DS	Yes	12.7	73.5	64.5–81.2	0.05	92.8	90.8–94.5	0.2	59.7	51.2–67.8	96.0	94.4–97.3
	No	14.4	55.2	35.7–73.6		95.3	91.0–98.0		66.7	44.7–84.4	92.7	87.8–96.0
Previous observations abnormal weight:
IS
n = 120	Yes	25.0^2	93.3	77.9–99.2	0.03	85.6	76.6–92.1	0.003	68.3	51.9–81.9	97.5	91.2–99.7
n = 1003	No	10.5	68.6	58.8–77.3		93.9	92.1–95.3		56.7	47.6–65.5	96.2	94.7–97.4
DS	Yes	27.5^2	90.9	75.67–98.1	0.003	87.4	78.5–93.5	0.02	73.2	57.1–85.7	96.2	89.3–99.2
	No	11.4	64.0	54.5–72.8		93.9	92.1–95.4		57.5	48.4–66.2	95.3	93.7–96.6
Frequent visitor:^3
IS
n = 950	Yes	16.4	90.9	70.8–98.9	0.05	91.9	86.4–95.8	0.5	62.5	43.7–78.9	98.6	94.9–99.8
n = 171	No	15.1	70.5	61.2–78.8		93.3	91.4–94.9		58.5	49.7–66.9	96.0	94.4–97.2
DS	Yes	15.8	87.0	66.4–97.2	0.052	91.9	86.3–95.7	0.4	62.5	43.7–78.9	97.8	93.8–99.6
	No	13.5	66.7	57.6–74.9		93.6	91.7–95.2		60.7	52.0–69.0	95.0	93.2–96.4

Notes: ¹Familiar: Yes represents “Very familiar” or “Familiar”. “No” represents “Less familiar” or “Unfamiliar”. ²P-value < 0.05. ³Yes represents more than three visits during the past year. ⁴Large sample tests for proportions.