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Table 3 Infant sleep photograph characteristics

From: Improving infant sleep safety via electronic health record communication: a randomized controlled trial

  Intervention - Month 1
(N = 21)
Intervention - Month 2
(N = 18)
Control - Month 2
(N = 22)
Number submitted
 Median (Range) 2 (1–4) 2 (2–4) 2 (1–4)
Sleep location, N (%)
 Own room 5 (24) 4 (22) 3 (14)
 Parents’ room 11 (52) 7 (39) 16 (73)
 Another room of the house 1 (5) 2 (11) 2 (9)
 Sibling’s room 1 (5) 0 (0) 0 (0)
 Cannot be determined 3 (14) 5 (28) 1 (5)
Outermost piece of clothing, N (%)
 Shirt 0 (0) 0 (0) 1 (5)
 Shirt and pants 1 (5) 1 (6) 0 (0)
 Onesy 1 (5) 2 (11) 5 (23)
 Pajamas 5 (24) 2 (11) 4 (18)
 Swaddle blanket 8 (38) 6 (33) 6 (27)
 Sleep sack 6 (29) 5 (28) 4 (18)
 Other 0 (0) 2 (11) 2 (9)
Sleep surface, N (%)
 Crib 9 (43) 8 (44) 7 (32)
 Bassinet 5 (24) 5 (28) 10 (45)
 Cradle 0 (0) 1 (6) 1 (5)
 Bedside co-sleeper (“sidecar”) 0 (0) 0 (0) 1 (5)
 Co-sleeper in middle of bed 0 (0) 0 (0) 1 (5)
 Pac n Play, traveling bed, portable play yard 5 (24) 4 (22) 1 (5)
 Rock n play 1 (5) 0 (0) 1 (5)
 Other 1 (5) 0 (0) 0 (0)
Firm sleep surface, N (%)
 Yes 19 (90) 17 (94) 22 (100)
 No 1 (5) 0 (0) 0 (0)
 Unsure 1 (5) 1 (6) 0 (0)
Sleep position, N (%)
 Supine (on back) 21 (100) 17 (94) 21 (96)
 Side 0 (0) 1 (6) 1 (5)
Objects on sleep surface, N (%)
 Yes (Infants with ≥1 object) 2 (10) 3 (17) 5 (23)
 Pillow/cushion 0 (0) 0 (0) 2 (9)
 Stuffed animal/pillow like toy 0 (0) 0 (0) 1 (5)
 Loose bedding 2 (10) 2 (11) 4 (18)
 Bumper pads 0 (0) 2 (11) 0 (0)
 Sleep positioner/wedge 0 (0) 1 (6) 2 (9)
 Loose cord/electrical wire 0 (0) 0 (0) 1 (5)
 White Noise Machine 0 (0) 0 (0) 2 (9)
Head covering, N (%) 1 (5) 1 (6) 0 (0)
Mobile/hanging toy within reach, N (%) 2 (10) 1 (6) 0 (0)
Sleep surface shared with another person, N (%) 0 (0) 0 (0) 1 (5)
Pacifier, N(%) 2 (14) 2 (11) 1 (5)