| Number | Reference number |
---|---|---|
Measurement | ||
 ActiGraph accelerometer (100 cpm cut-point and 10 min non-wear time) | 1 | EYHS[36] |
 ActiGraph accelerometer (100 cpm cut-point and 20 min non-wear time) | 6 | |
 ActiGraph accelerometer (100 cpm cut-point and 60 min non-wear time) | 2 | |
 ActiGraph accelerometer (500 cpm cut-point and 10 min non-wear time) | 1 | EYHS [34] |
 Self-administered child questionnaire | 25 | [25, 26], COSI [27], ENERGY [28–30], EYHS [35, 38], HBSC 01/02 [39–43], HBSC 05/06 [44–46], HBSC 09/10 [47–49], HBSC 13/14 [50], ICAD [51], ISAAC [57], ISCOLE [59], Pro Children [60, 61] |
 Self-administered parental questionnaire | 7 | |
 Parental questionnaire interview | 1 | Toybox [63] |
 Ecological Momentary Assessment Diary | 3 | |
Child and parental questionnaire: question type | ||
 Usual frequency | 28 | [26], COSI [27], ENERGY [28–30], EYHS [35, 38], HBSC 01/02 [39–43], HBSC 05/06 [44–46], HBSC 09/10 [47–49], HBSC 13/14 [50], ICAD [51], IDEFICS [54–56], ISAAC [57], ISCOLE [59], Pro Children [60, 61], Toybox [62] |
 Recall | 1 | ENERGY [28] |
 Unknown | 2 | |
Child and parental questionnaire: answer type | ||
 Questions with answer categories | 26 | [26], COSI [27], ENERGY [28–30], EYHS [35, 38], HBSC 01/02 [39–43], HBSC 05/06 [44–46], HBSC 09/10 [47–49], HBSC 13/14 [50], IDEFICS [54–56], ISCOLE [59], Pro Children [60, 61], Toybox [62] |
 Questions without answer categories | - | - |
 Unknown | 4 | |
Reported specific sedentary time variable | ||
 Total sedentary time | 10 | ENERGY [31–33], EYHS [34, 36, 37], ICAD [52, 53], ISCOLE [58, 59] |
 Television time | 24 | [23–26], COSI[27], ENERGY [28], EYHS [35, 38], HBSC 01/02 [39–43], HBSC 05/06 [44–46], HBSC 09/10 [48, 49], HBSC 13/14 [50], ISAAC [57], Pro Children [60, 61], Toybox [62, 63] |
 Computer time | 15 | [23, 24], COSI [27], ENERGY [28], EYHS [35, 38], HBSC 01/02 [39, 43], HBSC 05/06 [44–46], HBSC 09/10 [47, 49], HBSC 13/14 [50], Toybox [62] |
 Videogames time | 6 | |
 Screen-time | 11 | [22], COSI [27], ENERGY [28–30], ICAD [51], IDEFICS [54–56], ISCOLE [59], Toybox [62] |
 Homework | 3 | |
 Other sedentary activities | 4 | |
Reported time period | ||
 Day | 28 | [24, 25],COSI [27], ENERGY [28–30, 32], EYHS [34, 35, 37, 38], HBSC 01/02 [41, 42], HBSC 05/06 [44, 45], ICAD [51–53], IDEFICS [54–56], ISAAC [57], ISCOLE [58, 59], Pro Children [60, 61], Toybox [62, 63] |
 Weekday | 14 | [22, 23, 26], EYHS [36, 37], HBSC 01/02 [39, 40, 43], HBSC 05/06 [46], HBSC 09/10 [47–49], HBSC 13/14 [50], Toybox [62] |
 Weekend day | 8 | [22, 23], EYHS [36, 37], HBSC 01/02 [40, 43], HBSC 09/10 [49], Toybox [62] |
 School time | 2 | |
 Before school | 1 | EYHS [38] |
 After school | 3 | |
Reported unit | ||
 Minutes | 16 | [22–24], ENERGY [28–33], EYHS [36, 37], HBSC 09/10 [47], ICAD [52, 53], ISCOLE [58], Toybox [62] |
 Hours | 11 | COSI [27], EYHS [38], HBSC 01/02 [40, 42], HBSC 05/06 [45], HBSC 09/10 [47, 49], ISAAC [57], ISCOLE [59], Pro Children [60], Toybox [63] |
 % of time period | 2 | |
 % >1 hour | 5 | |
 % >2 hours | 12 | [25], EYHS [35, 38], HBSC 01/02 [39], HBSC 05/06 [44, 46], HBSC 09/10 [48], HBSC 13/14 [50], ICAD [51], IDEFICS [56], ISCOLE [59], Pro Children [61] |
 % >3 hours | 2 | |
 % >4 hours | 2 | |
 % not at all, <0.5 h, 0.5-1 h, 1-2 h, 2-3 h, >3 h | 1 | IDEFICS [54] |
 % <0.5 h, 1-2 h, 3-4 h, >4 h | 1 | [26] |
 % <1 h, 1-3 h, 3-5 h, >5 h | 1 | ISAAC [57] |