Table 1. Characteristics of study sample with regard to symptoms and GP contact

	Study sample		Number of symptoms			Number of symptoms with GP contact
	n	%	n	%	Mean (SD)	n	%	P-value^a
Study sample
Overall	49 706	100.0	268 772	100.0	5.4 (4.39)	58 370	21.7
Sex								<0.001
Male	23 240	46.8	110 655	41.2	4.8 (3.94)	24 526	22.2
Female	26 466	53.2	158 117	58.8	6.0 (4.67)	33 844	21.4
Age, years								<0.001
20–39	12 251	24.6	80 026	29.8	6.5 (4.69)	12 145	15.2
40–59	20 305	40.9	109 196	40.6	5.4 (4.32)	21 822	20.0
60–79	15 748	31.7	71 639	26.7	4.6 (4.01)	21 554	30.1
≥80	1 402	2.8	7 911	2.9	5.6 (4.43)	2 849	36.0
Symptom burden (Total number of symptoms experienced)								<0.001
0	4 223	8.5
1–2	10 524	21.2	15 951	5.9		2 582	16.2
3–5	14 878	29.9	58 577	21.8		10 486	17.9
6–10	13 589	27.3	103 596	38.5		21 264	20.5
11–15	4 930	9.9	61 772	23, 0		15 126	24.5
≥16	1 562	3.1	28 876	10.7		8 912	30.9
Influence on daily activities								<0.001
None at all			43 989	16.5		4 287	9.75
Slight			92 3304	34.7		13 112	14.2
Moderate			64 642	24.3		15 186	23.5
Quite a bit			43 905	16.5		15 118	34.4
Extreme			21 452	8.1		10 667	49.7
Symptom concern								<0.001
None at all			100 615	37.9		9 478	9.4
Slight			80 504	30.3		15 562	19.3
Moderate			44 538	16.8		13 974	31.3
Quite a bit			26 427	10.0		11 640	44.1
Extreme			13 272	5.0		7 743	58.3

↵^aPercentages might not fully match with total numbers due to missing information. Missing information does not exceed 1%. Tested for difference between groups with χ² test. SD = standard deviation.