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Table 6 Urine Osmolality for the Control group with daily PA, SRWC, and PRAL subgroup analyses (Mean (SE)).

From: Acid-base balance and hydration status following consumption of mineral-based alkaline bottled water

Control Condition Pre-Treatment Period Treatment Period Post-Treatment Period
  M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 M12
All Subjects 495 424 466 450 439 470 419 448 430 480 488 425
(n = 19) (52) (42) (54) (51) (55) (42) (41) (42) (50) (54) (47) (43)
Low PA
(n = 9)
509
(64)
478
(67)
483
(69)
512
(76)
515
(70)
418
(76)
461
(80)
465
(78)
445
(81)
493
(77)
468
(79)
479
(50)
High PA
(n = 10)
483
(66)
375
(56)
451
(57)
394
(40)
370
(41)
516
(60)
382
(36)
370
(35)
416
(50)
461
(68)
506
(57)
467
(68)
Low SRWC
(n = 9)
538
(66)
499
(55)
538
(69)
502
(60)
469
(67)
506
(71)
426
(37)
430
(36)
470
(67)
515
(61)
483
(54)
433
(52)
High SRWC
(n = 10)
456
(69)
356
(56)
402
(72)
403
(69)
412
(70)
437
(50)
413
(72)
410
(70)
394
(58)
446
(69)
493
(77)
419
(69)
Low PRAL
(n = 9)
466
(64)
444
(72)
495
(69)
452
(75)
457
(76)
455
(77)
398
(44)
410
(44)
441
780)
493
(74)
468
(63)
380
(59)
High PRAL
(n = 10)
521
(66)
406
(49)
440
(68)
448
(72)
423
(72)
480
(60)
438
(69)
435
(60)
442
(80)
466
(69)
506
(71)
466
(62)
  1. Note: There were a total of twelve 24-hour urine collections labeled in the table as M1-M12, respectively. Mean osmolality values were compared directly with respective mean Pre-Treatment reference value which were averages of all M1-M3 values within the condition and subject group being evaluated. These Pre-Treatment reference values were as follows: 462 (all Control subjects), 490 (low PA), 436 (high PA), 525 (low SRWC), 405 (high SRWC), 468 (low PRAL), and 456 mOsm/kg (high PRAL). There were no significant differences detected for any of the evaluations.