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. 2019 May 21;7(5):e11930. doi: 10.2196/11930

Table 2.

Average sleep duration comparing the BASIS smartwatch and the iSenseSleep algorithm.

Group and subject ID Sleep duration (min), mean (SD)


All days Weekdays Weekend days


BASIS iSenseSleep BASIS iSenseSleep BASIS iSenseSleep
Mothers






S01 393 (10) 418 (14) 393 (13) 409 (15) 389 (20) 458 (18)

S02 402 (15) 507 (16) 406 (17) 509 (25) 378 (23) 493 (19)

S03 455 (13) 377 (34) 464 (10) 377 (29) 392 (30) 379 (17)

S04 446 (15) 444 (25) 437 (18) 433 (17) 503 (15) 506 (23)
Students






S05 429 (15) 481 (23) 436 (15) 483 (20) 386 (29) 465 (15)

S06 473 (16) 478 (25) 474 (10) 485 (15 461 (22) 429 (24)

S07 377 (22) 377 (24) 378 (30) 376 (15 374 (23) 384 (37)

S08 450 (13) 454 (35) 449 (13) 450 (23 453 (35) 479 (17)

S09 482 (14) 459 (24) 486 (29) 463 (18 443 (35) 429 (27)

S10 478 (16) 446 (36) 481 (24) 441 (37 453 (27) 476 (19)

S11 409 (19) 378 (45) 417 (17) 381 (23 344 (34) 350 (24)

S12 417 (24) 374 (16) 408 (27) 376 (29 501 (24) 362 (16)

S13 462 (16) 346 (25) 454 (24) 355 (35 519 (12) 272 (23)

S14 452 (29) 426 (39) 450 (23) 424 (34 468 (29) 434 (26)