Serum Indicators Reflecting Gastric Function May Also Correlate with Other Extragastric Diseases

Table 4

(a) The correlation between gastric function indicators and T3 and T4 levels in serum. (b) The correlation between gastric function parameters and TSH, TPOAb, and TGAb levels in serum.

(a)

Gastric function	T3 level quartiles^a
	Q1 ()	Q2 ()	Q3 ()	Q4 ()
PGI	94.2 (72.2–121.9)	92.5 (71.23–112)	94.9 (75.55–122.45)	96.15 (72.4–119.95)	0.399
PGII	7.2 (5.3–13.1)	7 (5–10.77)	8.15 (5.63–12.9)	8.15 (5.2–12.23)	0.629
PGI/II	12.15 (8.73–16.08)	12.7 (9.39–15.89)	11.47 (8.83–14.59)	12.01 (8.74–15.52)	0.094
G17	2.6 (0.9–5.7)	2.08 (0.9–5.26)	2.3 (0.81–7.7)	1.95 (0.9–6.05)	0.151
Gastric function	T4 level quartiles^b
	Q1 ()	Q2 ()	Q3 ()	Q4 ()
PGI	96.1 (73–119.8)	91.8 (73–113.3)	92.7 (72.9–117.7)	98.85 (72.78–127)	0.506
PGII	7.6 (5.2–12.3)	6.7 (5.25–11.1)	7.7 (5.3–12.2)	7.96 (5.5–12.55)	0.542
PGI/II	12.2 (8.9–15.31)	12.38 (9.44–15.59)	12.31 (8.36–15.61)	11.82 (8.64–15.55)	0.820
G17	2.55 (0.8–5.9)	2.1 (0.9–5.08)	2.1 (0.8–5.8)	2.28 (0.95–7.6)	0.059

T3: triiodothyronine; T4: tetraiodothyroxide.
^aQuartile 1 (2.79–4.26 pmol/L); quartile 2 (4.27–4.64 pmol/L); quartile 3 (4.65–5.00 pmol/L); quartile 4 (5.01–39.63 pmol/L).
^bQuartile 1 (7.31–13.22 U/L); quartile 2 (13.23–14.28 U/L); quartile 3 (14.29–15.44 U/L); quartile 4 (15.45–40.89 U/L).
The values listed in the table are median and interquartile range.

(b)

Gastric function	TSH level quartiles^c
	Q1 ()	Q2 ()	Q3 ()	Q4 ()
PGI	98.35 (75.65–122)	95.05 (72.8–117.9)	91.7 (71.68–122.45)	90.8 (71.8–119.4)	0.516
PGII	8.15 (5.68–13.53)	7.8 (5.5–11.4)	7 (5–11.7)	6.9 (5.1–12)	0.093
PGI/II	11.54 (8.38–15.34)	12.05 (9.5–15.1)	12.09 (9.07–15.6)	12.68 (8.93–15.53)	0.047
G17	2.88 (1.09–7.35)	2.7 (1.04–5.3)	1.78 (0.76–6.18)	2 (0.7–5.3)	0.334
Gastric function	TPOAb level quartiles^d
	Q1 ()	Q2 ()	Q3 ()	Q4 ()
PGI	100.85 (75.1–125.78)	93.1 (74.05–118)	96.9 (73.33–124.75)	84 (68.98–111.4)	0.008
PGII	7.8 (5.5–11.9)	7.3 (5.1–12)	8.65 (5.7–14.08)	6.95 (5–10.78)	0.420
PGI/II	12.86 (9.63–15.8)	12.13 (8.97–15.54)	11.08 (8.07–14.49)	12.17 (9.33–15.57)	0.58
G17	2.63 (1.04–6.3)	2.05 (0.73–5.43)	2.58 (1.1–6.75)	1.83 (0.6–5.39)	0.990
Gastric function	TGAb level quartiles^e
	Q1 ()	Q2 ()	Q3 ()	Q4 ()
PGI	92.9 (72.2–121.45)	98.65 (77.08–121.83)	92.4 (74.55–120.85)	91.7 (69.2–118.25)	0.23
PGII	8.4 (5.1–12.38)	7.8 (5.68–12.53)	7.3 (5.15–11.05)	6.8 (5.2–11.68)	0.37
PGI/II	11.88 (8.78–15.02)	12.51 (9.17–15.57)	12.04 (8.92–15.96)	12.09 (8.56–15.29)	0.21
G17	2.98 (1.11–7.28)	2.1 (0.99–5.31)	2.05 (0.8–5.55)	1.83 (0.7–5.35)	0.07

TSH: thyroid stimulating hormone; TPOAb: thyroid peroxidase antibody; TGAb: thyroglobulin antibody.
^cQuartile 1 (0–1.13 mIU/L); quartile 2 (1.14–1.63 mIU/L); quartile 3 (1.64–2.37 mIU/L); quartile 4 (2.38–65.58 mIU/L).
^dQuartile 1 (0–0.10 IU/mL); quartile 2 (0.11–0.29 U/mL); quartile 3 (0.30–0.78 U/mL); quartile 4 (0.79–952.8 IU/mL).
^eQuartile 1 (0–0.7 IU/mL); quartile 2 (0.72–1.20 IU/mL); quartile 3 (1.21–2.58 IU/mL); quartile 4 (2.59–908.3 IU/mL).