Table B1.

Characteristic of 58 caregivers and associated frequencies, prevalence of faecal contamination (>10 colony forming units per gram) and p value from Fisher's exact test

Risk factor	N (%)	Contaminated (%)	p value
Caregiver sex
Female	57 (98)	31 (54)	.47a
Male	1 (2)	0 (0)
Caregiver age (years)
<20	21 (36)	11 (52)	1.00
20–29	15 (26)	8 (53)
30–39	14 (24)	8 (57)
40+	8 (14)	4 (50)
Relationship to child
Mother	43 (74)	24 (56)	.56
Not mother	15 (26)	7 (47)
Caregiver education
No schooling	8 (14)	3 (38)	.70
Primary school	34 (59)	19 (56)
Secondary or above	16 (28)	9 (56)
Child age (months)
6–23	18 (31)	8 (44)	.74
24–35	18 (31)	10 (56)
36–47	13 (22)	7 (54)
48–59	9 (16)	6 (67)
No. of household members
2–4	27 (47)	11 (41)	.11
5+	31 (53)	20 (65)
No. of children under 5 years
1	37 (64)	17 (46)	.17
2+	21 (36)	14 (67)
Wealth quintile
1st	12 (21)	8 (67)	.46
2nd	11 (19)	5 (45)
3rd	12 (21)	7 (58)
4th	11 (19)	6 (55)
5th	12 (21)	5 (42)
Crowding (people per room)
<4	27 (47)	16 (59)	.44
≥4	31 (53)	15 (48)
Water source
Tap in compound	33 (57)	17 (52)	.80
Other	25 (43)	14 (56)
Water stored in covered container
Yes	49 (84)	25 (51)	.48
No	9 (16)	6 (67)
Point of use water treatment
Yes	10 (18)	4 (40)	.49
No	47 (82)	27 (57)
MapSan trial arm
Intervention	29 (50)	15 (52)	1.00
Control	29 (50)	16 (55)
Child faeces observed on premises
Yes	2 (3)	2 (100)	.49a
No	56 (97)	29 (52)
Animals observed on premises
Yes	39 (67)	20 (51)	.78
No	19 (33)	11 (58)
Soap availability
Yes	53 (91)	26 (49)	.06a
No	5 (9)	5 (100)
Self‐reported HWWS
Yes	35 (60)	16 (46)	.18
No	23 (40)	15 (65)
HWWS after defecation
Yes	27 (47)	12 (44)	.29
No	31 (53)	19 (61)
HWWS after changing nappies
Yes	3 (5)	0 (0)	.10a
No	55 (95)	31 (56)
HWWS before preparing food
Yes	22 (38)	11 (50)	.79
No	36 (62)	20 (56)
HWWS before eating
Yes	30 (52)	13 (43)	.12
No	28 (48)	18 (64)
HWWS before feeding the child
Yes	16 (28)	6 (38)	.15
No	42 (72)	25 (60)
Washing of cooking utensils
Yes	41 (71)	21 (51)	.77
No	17 (29)	10 (59)
Washing of feeding utensils
Yes	39 (67)	21 (54)	1.00
No	19 (33)	10 (52)
Washing of food containers
Yes	43 (74)	24 (56)	.56
No	15 (26)	7 (47)
Washing of cooking surfaces
Yes	7 (12)	4 (57)	1.00
No	51 (88)	27 (53)
Utensils visibly dirty
Yes	9 (16)	6 (67)	.48
No	28 (84)	24 (50)
Location of cooking
Inside	43 (74)	21 (49)	.37
Outside	15 (26)	10 (67)
Location of feeding the child
Inside	28 (48)	15 (54)	1.00
Outside	30 (52)	16 (53)
Main ingredients
Flour‐based: Porridge	11 (19)	3 (27)	.06
Cooked vegetables	27 (47)	15 (56)
Salad	6 (10)	6 (100)
Fried egg	5 (9)	2 (40)
Meat/fish	9 (16)	5 (56)
Contact with other foods (same container/utensil)
Yes	23 (40)	15 (65)	.18
No	35 (60)	16 (46)
Storage after cookingb
Recently cooked	30 (58)	11 (37)	.09
Cooked earlier, stored	22 (42)	14 (64)
Food stored in covered containerc
Yes	16 (73)	8 (50)	.05a
No	6 (27)	6 (100)
Food refrigeratedc
Yes	1 (5)	0 (0)	.36a
No	21 (95)	14 (67)
Food reheatedc
Yes	9 (41)	6 (67)	1.00
No	13 (59)	8 (62)

Abbreviation: HWWS, handwashing with soap.

^aPerfectly predicts the outcome.

^bOut of cooked food (excluding salad).

^cOut of food stored after cooking.