Table 4.
Distribution of Positive and Negative SPT Reactivity Based on the Various Established Dietary Indices among 11,494 Young Chinese Adults in the SMCGES Cohort
| SPT Reactivity to Common Mite Allergens | Positive SPT Response (n = 7,936) | Negative SPT Response (n = 3,489) | Chi-Square P-Value |
|---|---|---|---|
| DQDPS | |||
| Low total protein score | 1777 (22.4%) | 991 (28.4%) | 4.650 × 10−14 |
| Moderate total protein score | 2879 (36.3%) | 1279 (36.7%) | |
| High total protein score | 3280 (41.3 %) | 1219 (34.9%) | |
| APS | |||
| Low APS | 2341 (29.5%) | 1223 (35.1%) | 1.224 × 10−12 |
| Moderate APS | 2944 (37.1%) | 1064 (30.5%) | |
| High APS | 2651 (41.3%) | 1202 (34.5%) | |
| PPS | |||
| Low PPS | 2513 (31.7%) | 1013 (29.0%) | 1.703 × 10−2 |
| Moderate PPS | 2642 (33.3%) | 1222 (35.0%) | |
| High PPS | 2781 (35.0%) | 1254 (35.9%) | |
| Combined APS/PPS | |||
| High APS and low PPS | 429 (5.40%) | 135 (3.90%) | 3.023 × 10−16 |
| High APS and moderate APS | 924 (11.6%) | 302 (8.70%) | |
| High APS and high PPS | 1591 (20.0%) | 627 (18.0%) | |
| Moderate APS and low PPS | 904 (11.4%) | 352 (10.1%) | |
| Moderate APS and moderate PPS | 964 (12.1%) | 482 (13.8%) | |
| Moderate APS and high PPS | 783 (9.90%) | 368 (10.5%) | |
| Low APS and low PPS | 1180 (14.9%) | 526 (15.1%) | |
| Low APS and moderate PPS | 754 (9.50%) | 438 (12.6%) | |
| Low APS and high PPS | 407 (5.10%) | 259 (7.40%) | |
| Combined dietary scores (DPS and DFS) | |||
| High PPS and low-fat score | 1129 (14.2%) | 605 (17.3%) | 1.110 × 10−14 |
| High PPS and moderate-fat score | 940 (11.8%) | 384 (11.0%) | |
| High PPS and high-fat score | 712 (9.00%) | 265 (7.60%) | |
| Moderate PPS and low-fat score | 770 (9.70%) | 458 (13.1%) | |
| Moderate PPS and moderate-fat score | 994 (12.5%) | 468 (13.4%) | |
| Moderate PPS and high-fat score | 878 (11.1%) | 296 (8.50%) | |
| Low PPS and low-fat score | 301 (3.80%) | 161 (4.60%) | |
| Low PPS and moderate-fat score | 806 (10.2%) | 337 (9.70%) | |
| Low PPS and high-fat score | 1406 (17.7%) | 515 (14.8%) | |
| Combined dietary scores (DPS and QDGIS) | |||
| High PPS and good QDGIS class | 1446 (18.2%) | 682 (19.5%) | 4.569 × 10−4 |
| High PPS and moderate QDGIS class | 996 (12.6%) | 437 (12.5%) | |
| High PPS and poor QDGIS class | 339 (4.30%) | 135 (3.90%) | |
| Moderate PPS and good QDGIS class | 943 (11.9%) | 507 (14.5%) | |
| Moderate PPS and moderate QDGIS class | 1049 (13.2%) | 470 (13.5%) | |
| Moderate PPS and poor QDGIS class | 650 (8.20%) | 245 (7.00%) | |
| Low PPS and good QDGIS class | 453 (5.70%) | 182 (5.20%) | |
| Low PPS and moderate QDGIS class | 931 (11.7%) | 398 (11.4%) | |
| Low PPS and poor QDGIS class | 1129 (14.2%) | 433 (12.4%) | |
Abbreviations: APS, animal protein score; DPS, dietary protein score; DQDPS, diet quality based on dietary protein score; PPS, plant protein score; QDGIS, quality of diet based on glycaemic index score; SMCGES, Singapore/Malaysia Cross-sectional Genetic Epidemiology Study; SPT, skin prick test.
A chi-square P-value < 0.001 (as adjusted by Bonferroni’s correction for multiple comparisons) is considered statistically significant and is written in bold.