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Table 1 Mean intakes 1 of plain, tap and bottled water (mL) among adults by socio-demographic group

From: Water and beverage consumption among adults in the United States: cross-sectional study using data from NHANES 2005–2010

 

n

Total water as a beverage

Pairwise p-value

Tap water

Pairwise p-value

Bottled water

Pairwise p-value

All Adults

15702

1138 (16)

-

644 (13)

-

502 (13)

-

Age group

       

20-50

8389

1294 (22)

ref

700 (17)

ref

597 (16)

ref

51-70

4737

1020 (20)

<0.001

607 (18)

<0.001

431 (14)

<0.001

≥71

2576

669 (12)

<0.001

495 (10)

<0.001

181 (9)

<0.001

Gender

       

Men

7614

1153 (23)

0.30

660 (15)

0.12

509 (19)

0.73

Women

8088

1125 (14)

ref

628 (14)

ref

501 (12)

ref

Race/ethnicity

       

Non-Hispanic White

7610

1134 (19)

ref

703 (17)

ref

437 (12)

ref

Non-Hispanic Black

3173

1129 (23)

0.87

513 (18)

<0.001

617 (27)

<0.001

Mexican-American

2899

1095 (25)

0.23

383 (22)

<0.001

729 (33)

<0.001

Other Hispanic

1322

1208 (41)

0.10

455 (35)

<0.001

758 (48)

<0.001

Other race – including mixed race

698

1314 (96)

<0.001

692 (60)

0.86

606 (37)

<0.001

Family income-to-poverty ratio

       

<1

2905

1026 (33)

<0.001

603 (28)

<0.001

407 (21)

<0.001

1-1.99

3870

1088 (25)

<0.001

565 (22)

<0.001

542 (25)

0.27

2-3.49

3181

1115 (27)

<0.001

625 (22)

<0.001

505 (16)

0.86

≥3.5

4532

1223 (20)

ref

721 (17)

ref

509 (17)

ref

  1. 1Values are survey-weighted means with standard errors in parentheses.