Table 1.

Potential confounders of sachet water quality, Accea, Ghana

Characteristic	Link to water quality
Neighborhood	Low-quality product could be steered into certain neighborhoods
Brand	Could signal differential quality control
Price	Could signal differential quality control
Vendor type	Could indicate variable care in storage, freshness of inventory
Sun exposure	Ultraviolet light could inhibit bacterial growth
Chilled	Could inhibit bacterial growth
Vendor as wholesaler	Could indicate freshness of inventory
Days sachet in stock by vendor	Could indicate freshness of inventory
Cheap plastic wrapper	Could signal differential quality control
Visible particles	Could signal differential quality control