Skip to main content

Table 2 Weekend Day (WE) vs Weekday (WD) evidence supporting the Structured Days Hypothesis (SDH) in elementary school-aged children

From: Understanding differences between summer vs. school obesogenic behaviors of children: the structured days hypothesis

Obesogenic Behavior Structured Days Hypothesis (SDH) Number of Studies: References
SEARCH EXCLUDED USA STUDIES (INTERNATIONAL STUDIES)
Different population WE vs. WD not reported Foreign language Total Excluded TOTAL INCLUDED FOR SDH AGAINST SDHb
Statistical Test No Test Statistical Test No Test Statistical Test No Test
Physical Activity Lower levels of PA during WE vs. WD 339 171 70 7 248 15 (49) 3 (24) 13 (39) 2 (20) 2 (10) 1 (4) [29, 36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53, 55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120]
Sedentary/Screen Time a More sedentary/screen time during WE vs. WD 256 126 62 6 194 6 (29) 5 (22) 6 (22) 3 (16) 0 (7) 2 (6) [30, 39, 46, 47, 63, 65, 67, 72, 73, 77, 79, 89, 93,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95, 99,100,101, 103, 104, 106, 108, 111, 112, 115, 121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149]
Sleep Later bed/wake time during WE vs. WD 133 73 31 7 111 0 (0) 6 (16) 0 (0) 6 (16) 0 (0) 0 (0) [153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174]
Diet Consume unhealthy foods/beverages more frequently during WE vs. WD 139 84 35 5 125 8 (7) 0 (0) 9 (4) 0 (0) 0 (3) 0 (0) [34, 68, 113, 128, 175,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185]
Subtotal of Studies – USA (International) 29 (85) 14 (62) 27 (65) 11 (52) 2 (20) 3 (10)  
Total Number of Studies 867 454 198 25 677 190 155 35  
  1. aCombined results of two separate literature searches completed for sedentary* and screen*
  2. bReported statistical outcome either null or in opposite direction (p-value 0.05)