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. Author manuscript; available in PMC: 2021 Feb 1.
Published in final edited form as: Tob Control. 2019 Jul 20;29(Suppl 2):s123–s130. doi: 10.1136/tobaccocontrol-2019-054959

Table 3.

Reported description of colour, odour and materials in water in WP bowl after one use (smoked WP water)

n (%) Quotes
Colour of smoked WP water After smoking 1 WPT head at home, what is usually the colour of the water in the WP bowl? (n=58)
 Brown 16 (27.5)  Brown (8). Light brown (2). Tan (1). Colour of tobacco (1). Dirty brown (1). Brown-like soil pieces (1). Just brown liquid (1). Dark brown (1).
 White/grey/black 11 (19)  Somewhat clear (1). It is smoky clear (1). White (2). Foggy grey (4). Mostly cloudy (1). It looks a silver colour (1). Black/dark (1).
 Yellow 11 (19)  Light yellow (5). Yellow (4). Dark yellow (1). Amber (1).
 Clear 9 (15.5)  Clear (7). Pretty clear (1). Pretty clear depending on how long 1 was smoking (1).
 Pink/Red 7 (12.1)  Pink (1). Pinkish clear (1). Reddish colour (2). Orange (3).
 Tobacco flavour colour 4 (6.9)  Colour of flavour (1). It is usually the colour of the syrup from the tobacco (1). Colour of tobacco (2).
Odour of smoked WP water After smoking 1 WPT head at home, when you pour the water out of the WP bowl, do you usually smell anything? If Yes, describe the odour: (n=22)
 Tobacco/Cigarette/Smoke 10 (45.5)  Somewhat the flavour of the tobacco (3). Burnt tobacco (1). Tobacco smell (2). Smells like charcoal and burned tobacco (1). Cigarettes in water (1). Smells like stale smoke (1). Smoke and flavour (1).
 Tar/Burnt/Ash 7 (31.8)  Just tary and burnt (1). Tar-like smell (1). A lot burn with the smell of hookah (1). Burnt sheesh (2). Ashy (2).
 Dirty/Harsh 5 (22.7)  Dirty water smell (1). Stinking hookah water (1). Stale charcoal water (1). Dirty hookah water (1). Harsh (1).
Materials in the WP bowl After discarding the water from the WP bowl, do you usually see any material left in the WP bowl? If Yes, describe the material: (n=23)
 Tobacco 13 (56.5)  Tobacco residue (1). Small tobacco flakes (1). Leaves (1). Tobacco specks (1). Some pieces of tobacco (1). Sometimes tobacco (1). Tobacco (1). Tobacco leaves (1). Hits of sheesha (1). Burnt sheesh (3). Dark pieces like tar or residue of sheesha (1).
 Particles/Flakes/Ash 7 (30.4)  Little particles (1). It’s clear particles (1). Small black particles (1). Particulates (1). Black/dark flakes (1). Ash (1). Murky with random pieces in it (1).
 Buildup/Residue/Juice 3 (13.1)  Some buildup on the sides of jar (1). Residue (1). Juice (1).

Due to missing values, some variables do not total the sample size 50. Participants provided ≥1 response per question.

WP, waterpipe; WPT, waterpipe tobacco.