Background
Methods
Study subjects
Genotyping
SNPs | rs2227485 | rs1182844 | rs1179246 |
---|---|---|---|
Exchange | -429 C/T | +1046 T/A | +1995 A/C |
Forward Primer | AAAATGAGTCCGTGACCAAAATGC | CCACCTATGAGACTTCCCTATCAGT | GAAAAAGCCTTCCTGCCTAATGG |
Reverse Primer | ACACAATTGTTTTGTCTTAGTAGAGTTCAGAT | CACTAAAGGAAAAGGAAAGCTGTGTTT | GGTGCTGCCTAAAGGTCAGA |
Wildtype-Probe | FAM-CTCCTATAGTGACTGAGTAA-NFQ | VIC-AAACTTACTAGTAGGTATGACTC-NFQ | VIC-TGAACAGAGTTATCTGCCTC-NFQ |
Mutant-Probe | VIC-CTCCTATAGTGGCTGAGTAA-NFQ | FAM-CTTACTAGTAGGAATGACTC-NFQ | FAM-AACAGAGTTAGCTGCCTC-NFQ |
Statistical analysis
Results
Characteristics of participants
UC | Controls |
P
| |
---|---|---|---|
Number of subjects | 180 | 180 | |
Sex (Male/Female) | 95/85 | 98/82 | 0.75 |
Age (years, mean ± SD) | 39.7 ± 12.5 | 40.2 ± 13.1 | 0.71 |
BMI (kg/m2, mean ± SD) | 20.2 ± 3.7 | 19.8 ± 3.5 | 0.29 |
Smoking status (Ever/Never) | 79/101 | 75/105 | 0.67 |
Family history of IBD (Positive/Negative) | 14/166 | 11/169 | 0.54 |
Clinical type | |||
One episode | 16 | ||
Relapsing | 70 | ||
Continuous | 94 | ||
Location | |||
Proctitis (E1) | 73 | ||
Left side (E2) | 64 | ||
Extensive (E3) | 43 | ||
Disease severity | |||
Mild | 76 | ||
Moderate | 95 | ||
Severe | 9 |
IL-22-429C/T polymorphisms and UC
Genotypes | UC (n = 150) | Controls (n = 150) | OR (95% CI) |
P
|
---|---|---|---|---|
-429 CC | 57(31.7) | 68(37.8) | 1.00(Reference) | |
-429 CT | 70(38.9) | 86(47.8) | 0.97(0.61,1.56) | 0.90 |
-429 TT | 53(29.4) | 26(14.4) | 2.43(1.35,4.37) | 0.003 |
-429 C allele frequency | 184(51.1) | 222(61.7) | 1.00(Reference) | |
-429 T allele frequency | 176(48.9) | 138(38.3) | 1.54(1.14,2.07) | 0.004 |
+1046 TT | 88(48.9) | 94(52.2) | 1.00(Reference) | |
+1046 TA | 63(35.0) | 61(33.9) | 1.10(0.70,1.74) | 0.67 |
+1046 AA | 29(16.1) | 25(13.9) | 1.24(0.67,2.28) | 0.49 |
+1046 T allele frequency | 239(66.4) | 249(69.2) | 1.00(Reference) | |
+1046 A allele frequency | 121(33.6) | 111(30.8) | 1.14(0.83,1.55) | 0.43 |
+1995 AA | 76(42.2) | 81(45.0) | 1.00(Reference) | |
+1995 AC | 65(36.1) | 63(35.0) | 1.10(0.69,1.75) | 0.69 |
+1995 CC | 39(21.7) | 36(20.0) | 1.16(0.67,2.00) | 0.61 |
+1995 A allele frequency | 217(60.3) | 225(62.5) | 1.00(Reference) | |
+1995 C allele frequency | 143(39.7) | 135(37.5) | 1.10(0.81,1.48) | 0.54 |
Cases (n = 180) | CC | CT | TT | |||||||
---|---|---|---|---|---|---|---|---|---|---|
n (%) | OR (95% CI) |
P
| n (%) | OR (95% CI) |
P
| n (%) | OR (95% CI) |
P
| ||
Clinical type | 180 | 57(31.7) | 1(Reference) | 70(38.9) | 1(Reference) | 53(29.4) | 1(Reference) | |||
One episode | 16 | 5(31.2) | 0.99(0.35,2.81) | 0.98 | 7(43.8) | 1.13(0.44,2.85) | 0.80 | 4(25.0) | 0.85(0.27,2.65) | 0.78 |
Relapsing | 70 | 24(34.3) | 1.08(0.62,1.88) | 0.78 | 26(37.1) | 0.96(0.56,1.62) | 0.87 | 20(28.6) | 0.97(0.54,1.74) | 0.92 |
Continuous | 94 | 28(29.8) | 0.94(0.56,1.58) | 0.82 | 37(39.4) | 1.01(0.63,1.62) | 0.96 | 29(30.8) | 1.05(0.63,1.76) | 0.86 |
Location | 180 | 57(31.7) | 1(Reference) | 70(38.9) | 1(Reference) | 53(29.4) | 1(Reference) | |||
Proctitis (E1) | 73 | 24(32.9) | 1.04(0.60,1.80) | 0.89 | 27(37.0) | 0.95(0.57,1.60) | 0.85 | 22(30.1) | 1.02(0.58,1.80) | 0.94 |
Left side (E2) | 64 | 20(31.3) | 0.99(0.55,1.77) | 0.97 | 26(40.6) | 1.05(0.61,1.78) | 0.87 | 18(28.1) | 0.96(0.52,1.75) | 0.88 |
Extensive (E3) | 43 | 13(30.2) | 0.96(0.48,1.90) | 0.89 | 17(39.6) | 1.02(0.54,1.90) | 0.96 | 13(30.2) | 1.03(0.51,2.05) | 0.94 |
Disease severity | 180 | 57(31.7) | 1(Reference) | 70(38.9) | 1(Reference) | 53(29.4) | 1(Reference) | |||
Mild | 76 | 25(32.9) | 1.04(0.61,1.79) | 0.89 | 28(36.8) | 0.95(0.57,1.58) | 0.84 | 23(30.3) | 1.03(0.59,1.80) | 0.92 |
Moderate | 95 | 29(30.5) | 0.96(0.58,1.61) | 0.89 | 38(40.0) | 1.03(0.65,1.64) | 0.91 | 28(29.5) | 1.00(0.59,1.68) | 0.99 |
Severe | 9 | 3(33.3) | 1.05(0.28,4.02) | 0.94 | 4(44.5) | 1.14(0.34,3.83) | 0.83 | 2(22.2) | 0.76(0.16,3.60) | 0.72 |
IL-22 +1046 T/A polymorphisms and UC
Cases (n = 180) | TT | TA | AA | |||||||
---|---|---|---|---|---|---|---|---|---|---|
n (%) | OR (95% CI) |
P
| n (%) | OR (95% CI) |
P
| n (%) | OR (95% CI) |
P
| ||
Clinical type | 180 | 88(48.9) | 1(Reference) | 63(35.0) | 1(Reference) | 29(16.1) | 1(Reference) | |||
One episode | 16 | 7(43.7) | 0.89(0.35,2.55) | 0.81 | 6(37.6) | 1.07(0.40,2.86) | 0.89 | 3(18.7) | 1.16(0.32,4.25) | 0.82 |
Relapsing | 70 | 33(47.1) | 0.96(0.59,1.57) | 0.88 | 26(37.2) | 1.06(0.62,1.81) | 0.83 | 11(15.7) | 0.98(0.46,2.06) | 0.95 |
Continuous | 94 | 48(51.1) | 1.04(0.68,1.61) | 0.84 | 31(33.0) | 0.94(0.57,1.55) | 0.82 | 15(15.9) | 0.99(0.51,1.94) | 0.98 |
Location | 180 | 88(48.9) | 1(Reference) | 63(35.0) | 1(Reference) | 29(16.1) | 1(Reference) | |||
Proctitis (E1) | 73 | 37(50.7) | 1.04(0.65,1.66) | 0.88 | 25(34.2) | 0.98(0.57,1.67) | 0.94 | 11(15.1) | 0.94(0.44,1.97) | 0.86 |
Left side (E2) | 64 | 33(51.6) | 1.06(0.65,1.72) | 0.83 | 21(32.8) | 0.94(0.53,1.66) | 0.82 | 10(15.6) | 0.97(0.45,2.10) | 0.94 |
Extensive (E3) | 43 | 18(41.9) | 0.86(0.47,1.57) | 0.62 | 17(39.5) | 1.13(0.60,2.12) | 0.70 | 8(18.6) | 1.16(0.49,2.70) | 0.74 |
Disease severity | 180 | 88(48.9) | 1(Reference) | 63(35.0) | 1(Reference) | 29(16.1) | 1(Reference) | |||
Mild | 76 | 35(46.1) | 0.94(0.59,1.51) | 0.81 | 28(36.8) | 1.05(0.63,1.77) | 0.85 | 13(17.1) | 1.06(0.52,2.15) | 0.87 |
Moderate | 95 | 48(50.5) | 1.03(0.67,1.59) | 0.88 | 32(33.7) | 0.96(0.59,1.58) | 0.88 | 15(15.8) | 0.98(0.50,1.92) | 0.95 |
Severe | 9 | 5(55.6) | 1.14(0.37,3.49) | 0.82 | 3(33.3) | 0.95(0.25,3.63) | 0.94 | 1(11.1) | 0.69(0.08,5.65) | 0.73 |
IL-22 +1995 A/C polymorphisms and UC
Cases (n = 180) | AA | AC | CC | |||||||
---|---|---|---|---|---|---|---|---|---|---|
n (%) | OR (95% CI) |
P
| n (%) | OR (95% CI) |
P
| n (%) | OR (95% CI) |
P
| ||
Clinical type | 180 | 76(42.2) | 1(Reference) | 65(36.1) | 1(Reference) | 39(21.7) | 1(Reference) | |||
One episode | 16 | 7(43.8) | 1.04(0.41,2.62) | 0.94 | 6(37.5) | 1.04(0.39,2.77) | 0.94 | 3(18.7) | 0.87(0.24,3.12) | 0.83 |
Relapsing | 70 | 29(41.4) | 0.98(0.59,1.63) | 0.94 | 25(35.7) | 0.99(0.58,1.69) | 0.97 | 16(22.9) | 1.06(0.55,2.01) | 0.87 |
Continuous | 94 | 40(42.6) | 1.01(0.64,1.59) | 0.97 | 34(36.2) | 1.00(0.62,1.63) | 0.99 | 20(21.2) | 0.98(0.54,1.78) | 0.95 |
Location | 180 | 76(42.2) | 1(Reference) | 65(36.1) | 1(Reference) | 39(21.7) | 1(Reference) | |||
Proctitis (E1) | 73 | 31(42.5) | 1.01(0.61,1.66) | 0.98 | 26(35.6) | 0.99(0.58,1.68) | 0.96 | 16(21.9) | 1.01(0.53,1.92) | 0.97 |
Left side (E2) | 64 | 26(40.6) | 0.96(0.57,1.63) | 0.89 | 24(37.5) | 1.04(0.60,1.80) | 0.89 | 14(21.9) | 1.01(0.52,1.98) | 0.98 |
Extensive (E3) | 43 | 19(44.2) | 1.05(0.57,1.91) | 0.88 | 15(34.9) | 0.97(0.50,1.86) | 0.92 | 9(20.9) | 0.97(0.44,2.15) | 0.93 |
Disease severity | 180 | 76(42.2) | 1(Reference) | 65(36.1) | 1(Reference) | 39(21.7) | 1(Reference) | |||
Mild | 76 | 33(43.4) | 1.03(0.63,1.68) | 0.91 | 27(35.5) | 0.98(0.58,1.66) | 0.95 | 16(21.1) | 0.97(0.51,1.84) | 0.93 |
Moderate | 95 | 39(41.1) | 0.97(0.61,1.54) | 0.91 | 35(36.8) | 1.02(0.63,1.65) | 0.94 | 21(22.1) | 1.02(0.57,1.83) | 0.95 |
Severe | 9 | 4(44.5) | 1.05(0.32,3.52) | 0.93 | 3(33.3) | 0.92(0.24,3.52) | 0.91 | 2(22.2) | 1.03(0.21,4.93) | 0.98 |