Article Figures & Data
Figures
- Fig. AP1.
Arizona Tea Questionnaire
- Fig. AP2.
Appendix (continued)
- Fig. AP3.
Appendix (continued)
- Fig. AP4.
Appendix (continued)
- Fig. AP5.
Appendix (continued)
- Fig. AP6.
Appendix (continued)
Tables
- Table 1
Black tea polyphenol database based on the composition of commonly consumed black tea beverages in Arizona
No. of samples Average concentration (μg/ml) Total flavonoids Total polyphenols Catechins Theaflavins Thearubigens Gallic acid Caffeine Regular hot black teaa Brewed for 1 min 3 417 642 40 0 377 17 145 Brewed for 2–3 min 6 648 997 94 13 546 27 244 Brewed for ≥4 min 3 692 1064 87 15 585 25 215 Diluted hot black teab Brewed for 1 min 2 183 282 10 0 173 3 62 Brewed for 2–3 min 2 222 341 15 0 207 4 79 Brewed for ≥4 min 2 361 555 23 0 338 8 103 Iced black tea beverages Brewed 10 507 779 74 8 369 18 158 Sun Tea 5 383 589 47 3 333 21 131 Instant 2 96 147 1 0 95 3 30 Restaurant 5 470 724 40 3 425 32 200 -
a One tea bag/cup or mug = 0.96 g of tea leaves/100 ml.
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b One tea bag/2 cups or 2 mugs = 0.48 g of tea leaves/100 ml.
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- Table 2
Descriptive data and daily median (P25, P75) tea intake as estimated by the ATQ (ATQ1),a the AFFQ, and 4 days of FRs
Tea intake for consumer (ml/day) % consuming n = 116b Median (P25, P75)c Mean (SD) rid ATQ1a 78.3 48.8 (24.0, 155.2) 126.6 (154.8) AFFQ 87.9 44.1 (13.7, 129.7) 111.8 (182.5) 0.97 FRs 69.4 88.8 (59.3, 118.4) 101.1 (56.7) 0.77 -
a ATQ1, first administration of the ATQ. P25, P75, 25th and 75th percentiles.
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b Four subjects had incomplete food records (<4) and were excluded from the analysis.
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c Two-sided Wilcoxon signed-rank test comparing intake (ml/day) based on AFFQ and FRs with that based on ATQ1 = no statistical significant difference.
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d ri = intraclass correlation coefficient for log-transformed data.
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- Table 3
Daily median (P25, P75) black tea (ml/day) and black tea polyphenols (mg/day) intake as estimated by the ATQ administered twice
Daily intake for consumer of product Median (P25, P75)a Black tea ATQ1 ATQ2 rpb ric Overall tea intake (ml/day) 35.52 (11.83, 132.64) 67.59 (21.69, 232.34) 0.68 0.55 Total flavonoids (mg/day) 8.52 (2.91, 32.98) 11.21 (4.60, 44.17) 0.77 0.72 Total polyphenols (mg/day) 13.04 (4.49, 50.56) 17.24 (7.08, 67.87) 0.77 0.72 Catechins (mg/day) 0.94 (0.24, 4.36) 1.12 (0.51, 5.34) 0.82 0.67 Theaflavins (mg/day) 0.13 (0.04, 0.53) 0.14 (0.05, 0.68) 0.76 0.83 Thearubigens (mg/day) 7.03 (2.60, 27.25) 9.59 (4.14, 35.91) 0.77 0.73 Gallic acid (mg/day) 0.37 (0.13, 1.35) 0.48 (0.22, 2.00) 0.77 0.68 Caffeine (mg/day) 2.77 (1.03, 11.58) 3.77 (1.66, 15.98) 0.77 0.69 Hot tea (ml/day) 23.45 (8.87, 81.32) 25.63 (13.31, 211.21) 0.67 0.58 Total flavonoids (mg/day) 12.32 (4.47, 75.28) 13.25 (5.94, 126.26) 0.72 0.82 Total polyphenols (mg/day) 18.95 (6.88, 115.82) 20.38 (9.14, 194.26) 0.72 0.82 Catechins (mg/day) 1.56 (0.65, 9.29) 1.78 (0.83, 15.97) 0.70 0.81 Theaflavins (mg/day) 0.15 (0.05, 0.71) 0.23 (0.11, 1.37) 0.76 0.79 Thearubigens (mg/day) 10.38 (3.77, 63.43) 11.19 (5.02, 106.39) 0.72 0.83 Gallic acid (mg/day) 0.51 (0.19, 3.04) 0.51 (0.24, 5.26) 0.72 0.82 Caffeine (mg/day) 4.64 (1.68, 2.61) 4.50 (2.16, 47.54) 0.72 0.82 Brewed iced tea (ml/day) 84.49 (15.77, 84.49) 116.17 (23.66, 337.94) 0.71 0.40 Total flavonoids (mg/day) 30.50 (4.50, 57.83) 29.41 (8.00, 96.38) 0.79 0.80 Total polyphenols (mg/day) 46.86 (6.91, 88.85) 45.19 (12.29, 148.08) 0.79 0.80 Catechins (mg/day) 4.45 (0.66, 8.44) 4.29 (1.17, 14.07) 0.79 0.80 Theaflavins (mg/day) 0.48 (0.07, 0.91) 0.46 (0.13, 1.52) 0.79 0.80 Thearubigens (mg/day) 22.20 (3.27, 42.09) 21.41 (5.82, 70.14) 0.79 0.80 Gallic acid (mg/day) 1.08 (0.16, 2.05) 1.04 (0.28, 3.42) 0.79 0.80 Caffeine (mg/day) 9.50 (1.40, 18.02) 9.12 (2.49, 30.03) 0.79 0.80 Sun tea (ml/day) 33.79 (11.83, 152.07) 50.69 (21.69, 253.46) 0.81 0.76 Total flavonoids (mg/day) 6.63 (2.98, 25.40) 6.80 (4.53, 24.27) 0.81 0.87 Total polyphenols (mg/day) 10.20 (4.58, 39.06) 10.45 (6.97, 37.32) 0.81 0.87 Catechins (mg/day) 0.81 (0.37, 3.12) 0.83 (0.56, 2.98) 0.81 0.87 Theaflavins (mg/day) 0.05 (0.02, 0.20) 0.05 (0.04, 0.19) 0.81 0.87 Thearubigens (mg/day) 5.77 (2.59, 22.09) 5.91 (3.94, 21.10) 0.81 0.87 Gallic acid (mg/day) 0.36 (0.16, 1.39) 0.37 (0.25, 1.33) 0.81 0.87 Caffeine (mg/day) 2.27 (1.02, 8.69) 2.32 (1.55, 8.30) 0.81 0.87 Instant iced tea (ml/day) 20.70 (11.83, 184.74) 121.45 (34.78, 168.97) 0.64 0.43 Total flavonoids (mg/day) 0.68 (0.43, 8.52) 4.18 (0.91, 11.71) 0.79 Total polyphenols (mg/day) 1.05 (0.65, 13.04) 6.40 (1.40, 17.93) 0.79 Catechins (mg/day) 0.01 (0.004, 0.09) 0.04 (0.01, 0.12) 0.79 Theaflavins (mg/day) 0 (0, 0) 0 (0, 0) Thearubigens (mg/day) 0.68 (0.42, 8.43) 4.14 (0.90, 11.59) 0.79 Gallic acid (mg/day) 0.02 (0.001, 0.27) 0.13 (0.03, 0.37) 0.79 Caffeine (mg/day) 0.21 (0.13, 2.66) 1.31 (0.29, 3.66) 0.79 Restaurant iced tea (ml/day) 15.77 (11.83, 50.13) 26.61 (21.69, 126.73) 0.53 0.20 Total flavonoids (mg/day) 5.56 (2.91, 17.87) 7.99 (4.17, 22.34) 0.67 0.32 Total polyphenols (mg/day) 8.56 (4.49, 27.51) 12.31 (6.42, 34.41) 0.67 0.32 Catechins (mg/day) 0.47 (0.25, 1.52) 0.68 (0.36, 1.90) 0.67 0.32 Theaflavins (mg/day) 0.04 (0.02, 0.11) 0.05 (0.03, 0.14) 0.67 0.32 Thearubigens (mg/day) 5.03 (2.63, 16.16) 7.23 (3.77, 20.20) 0.67 0.32 Gallic acid (mg/day) 0.38 (0.20, 1.22) 0.54 (0.28, 1.52) 0.67 0.32 Caffeine (mg/day) 2.37 (1.24, 7.60) 3.40 (1.77, 951) 0.67 0.32 -
a Two-sided Wilcoxon signed-rank test comparing intake (mg/day) based on ATQ2 with that based on ATQ1 = no statistical significant difference. ATQ1, first administration of the ATQ; ATQ2, second administration of the ATQ (2 months later).
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b rp = Pearson correlation coefficient for log-transformed data.
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c r1 = intraclass correlation coefficient for log-transformed data.
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Volume 10, Issue 6
