Table 1

Pattern and type of data collection for two study groups

BaselineBiweekly Nov/DecPreinterventionBiweekly Jan/FebMid-termBiweekly Mar/AprEnd of harvest
Number of field visits1212131
Physical examYesYesYesYes
 Basic urine‡YesYesYesYesYesYesYes
 Extended urine§YesYesYesYes
WBGTDaily in both groups
Water refillsDaily self-report (Inland group)
Difficulty of workWeekly assessment (Inland group)
  • *Haemogram at Laboratorio CECIAM Escalón, San Salvador.

  • Serum chemistry at Lund University.

  • Urine assessments in field only (dipstick, osmolality and microscopic sediment evaluation).

  • §Urine chemistry at Lund University.

  • WBGT,wet bulb globe temperature.