Probably the most active population in the world: accelerometer measurements of 72 school-children in Greenland

Figures & data

Table 1. Descriptive statistics for all 72 school-children – mean and SD (for normally distributed data), and median with range (for not normally distributed data) as well as minimum and maximum values.

		Minimum	Maximum
Number of school-children	72
Age, years (range 25%; 75%)	12 (11.5; 12.25)	11.6	16.0
Female gender (%)	40 (56)
Hight (metre)	1.51 (1.45; 1.59)	1.36	1.79
Weight (kg)	48.6 (41.5; 57.5)	32.5	103
Objectively measured sedentary time (min/day)	382 (62)	245	512
Objectively measured light PA (min/day)	271 (56)	153	472
Objectively measured moderate PA (min/day)	52 (19)	13	97
Objectively measured vigorous PA (min/day)	13 (6; 18)	2	55
Objective measured moderate to vigorous PA (MVPA) (min/day)	61 (48; 78)	16	141

Table 2. Valid days with accelerometer data (numbers and column %).

	Girls (N = 40)		Boys (N = 32)		All (N = 72)
	Number	%	Number	%	Number	%
Weekdays
3	0	0	1	3	1	1
4	4	10	11	34	15	21
5	36	90	20	62	12	17
Weekend days
1	2	5	6	19	8	11
2	38	95	26	81	64	89

Figure 1. Percentage of school-children (n = 48) with at least 60 min PA per day through the week.

Table 3. Number of school-children adhering to WHO recommendations of >60 min PA per day on average.

		Accelerometer
		Not meeting recommendations	Meeting recommendations	Total
Self-reports	Not meeting recommendations	32 (true negative, TN)	36 (false negative, FN)	68 (TN + FN)
	Meeting recommendations	0 (false positive, FP)	4 (true positive, TP)	4 (FP + TP)
	Total	32 (TN + FP)	40 (FN + TP)	72