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Table 2 Impact and process outcomes by study characteristics and outcome predictors

From: The Clean pilot study: evaluation of an environmental hygiene intervention bundle in three Tanzanian hospitals

  Microbiologically clean (ACC < 2.5 cfu/cm3)
n/N (%)
Absence of S. aureus
n/N (%)
Cleaning action performed (gel dots removed)
n/N (%)
N = 1190 N = 1205 N = 2238
Overall 404/1190 (34.0) 1125/1205 (93.4) 1796/2238 (80.3)
Time period
 Pre-training 69/361 (19.1) 340/367 (92.6) 449/647 (69.4)
 Training 63/161 (39.1) 150/165 (90.9) 314/339 (92.6)
 Post-training 272/668 (40.7) 635/673 (94.4) 1033/1252 (82.5)
 Missing 0 0 0
Hospital
 1 131/436 (30.1) 412/441 (93.4) 658/767 (85.8)
 2 121/343 (35.3) 323/347 (93.1) 516/668 (77.3)
 3 152/411 (37.0) 390/417 (93.5) 622/803 (77.5)
 Missing 0 0 0
Ward type
 Postnatal c-section 116/304 (38.2) 287/308 (93.2) 486/587 (82.8)
 Postnatal vaginal 117/307 (38.1) 287/309 (92.9) 462/579 (79.8)
 Labour 97/307 (31.6) 297/312 (95.2) 487/583 (83.5)
 Neonatal/Kangaroo 74/272 (27.2) 254/276 (92.0) 361/489 (73.8)
 Missing 0 0 0
Audit location
 Bedframe 315/830 (38.0) 784/839 (93.4) 1216/1555 (78.2)
 Mattress 83/313 (26.5) 297/317 (93.7) 532/601 (88.5)
 Missing location 6/47 (12.8) 44/49 (89.8) 48/82 (58.5)
Shift type
 Morning 144/438 (32.9) 401/441 (90.9) 706/833 (84.8)
 Afternoon 153/456 (33.6) 431/461 (93.5) 594/807 (73.6)
 Night 107/296 (36.2) 293/303 (96.7) 496/598 (82.9)
 Missing shift 0 0 0
Day of week
 Sunday
 Monday 178/579 (30.7) 535/587 (91.1) 608/738 (82.4)
 Tuesday
 Wednesday 226/611 (37.0) 590/618 (95.5) 571/737 (77.5)
 Thursday
 Friday 617/763 (80.9)
 Missing day 0 0 0
Bed occupancy
 Low (< 0.75) 99/285 (34.7) 259/288 (89.9) 474/582 (81.4)
 Medium (0.75–1.25) 156/477 (32.7) 452/483 (93.6) 691/854 (80.9)
 High (> 1.25) 137/388 (35.3) 376/394 (95.4) 537/697 (77.0)
 Missing occupancy 12/40 (30.0) 38/40 (95.0) 94/105 (89.5)