Introduction
Methods
Study population and data collection
Dietary assessments and dietary lipophilic index and load calculation
Measurement of anthropometric variables and physical activity
Psychological health assessment
Statistical analysis
Results
Participant’s characteristics
Characteristics | (N = 2982) | LI tertiles | P-value* | ||
---|---|---|---|---|---|
1st tertile (N = 992) | 2nd tertile (N = 994) | 3rd tertile (N = 996) | |||
Dietary LI(ºC)a | 27.7(2.9) | 25.2(2.11)A | 27.7(0.94)B | 29.6(1.53)C | < 0.001 |
Dietary LL(ºC*g)a | 1842.3(1079.2) | 1817.3(1115.5)A | 1759.1(944.0)B | 1944.5(1144.1)C | < 0.001 |
Demographic variables, n (%) | |||||
Sex | |||||
Male | 1587(53.5) | 525(17.7) | 518(17.5) | 544(18.4) | 0.540 |
Female | 1377(46.5) | 464(15.7) | 467(15.8) | 446(15.0) | |
Age (years) | |||||
20–29 | 631(21.3) | 217(7.3) | 207(7.0) | 207(7.0) | 0.549 |
30–39 | 618(20.9) | 196(6.6) | 211(7.1) | 211(7.1) | |
40–49 | 634(21.4) | 214(7.2) | 199(6.7) | 221(7.5) | |
50–59 | 539(18.2) | 167(5.6) | 197(6.6) | 175(5.9) | |
60–69 | 542(18.3) | 196(6.6) | 172(5.8) | 174(5.9) | |
Education level | |||||
Secondary school and lower | 1539(52.1) | 531(18.0) | 500(16.9) | 508(17.2) | 0.080 |
Diploma and Graduate diploma | 913(30.9) | 295(10.0) | 303(10.3) | 315(10.7) | |
Bachelor’s Masters and PhD | 501(17.0) | 157(5.3) | 181(6.1) | 163(5.5) | |
Smoking | |||||
Yes | 78(2.6) | 20(0.7) | 35(1.2) | 23(0.8) | 0.288 |
No | 2843(95.3) | 952(31.9) | 939(315) | 952(31.9) | |
Ex_smoking | 61(2.0) | 20(0.7) | 20(0.7) | 21(0.7) | |
Marital status | |||||
Married | 2487(84.3) | 828(28.1) | 824(27.9) | 835(28.3) | 0.874 |
Single | 372(12.6) | 121(4.1) | 128(4.3) | 123(4.2) | |
Widowed or Divorced | 91(31) | 33(1.1) | 32(1.1) | 26(0.9) | |
Occupation | |||||
Unemployed | 583(20.0) | 187(6.4) | 204(7.0) | 192(6.6) | 0.539 |
Government-employed | 1397(48.0) | 454(15.6) | 472(16.2) | 471(16.2) | |
Manual worker | 102(3.5) | 30(1.0) | 29(1.0) | 43(1.5) | |
Self-employed | 826(28.4) | 285(9.8) | 270(9.3) | 271(9.3) | |
Anthropometric variables | |||||
Weight (kg) | 72.63 (14.2) | 72.53(14.2) | 72.70(14.0) | 72.66(14.4) | 0.964 |
Height (cm) | 164.76 (10.0) | 164.44(10.1) | 164.78(9.8) | 165.06(10.2) | 0.401 |
BMI (kg/m2) | 26.78 (4.8) | 26.83(4.8) | 26.81(4.8) | 26.71(4.9) | 0.845 |
WC (cm) | 93.34 (12.9) | 93.61(12.7) | 93.04(12.9) | 93.37(13.1) | 0.616 |
HC (cm) | 101.36 (11.4) | 101.32(11.6) | 101.29(11.3) | 101.45(11.3) | 0.949 |
Body fat(%) | 31.33(10.8) | 31.44(10.8) | 31.51(10.6) | 31.04(11.0) | 0.586 |
Dietary factors | |||||
Carbohydrates (g) | 280.54(126.4) | 301.16(135.4)A | 278.33(113)B | 266.19(128.8)C | < 0.001 |
Protein (g) | 123.38(68.7) | 120.09(75.3) | 125.37(63.7) | 123.69(67.6) | 0.232 |
Fat (g) | 76.69(45.8) | 83.65(51.5)A | 72.58(38.7)BD | 73.81(44.2)CD | < 0.001 |
Total energy(kcal) | 2148.29(973.3) | 2275.98(1128.2)A | 2119.42(821.1)BD | 2029.67(992.6)CD | < 0.001 |
SFA(g) | 24.3(14.1) | 23.3(13.2)AB | 23.1(12.5)BC | 26.6(15.8)D | < 0.001 |
MUFA(g) | 27.2(17.9) | 30.9(21.5)A | 25.9(14.3)BC | 25.5(15.9)CD | < 0.001 |
PUFA(g) | 16.1(10.1) | 20.7(13.9)A | 15.3(8.7)B | 13.0(7.8)C | < 0.001 |
TFA(g) | 0.5(0.4) | 0.5(0.5)AB | 0.5(0.4)BC | 0.4(0.3)D | < 0.001 |
W3 PUFA(g) | 0.5(0.3) | 0.6(0.4)A | 0.5(0.2)B | 0.4(0.2)C | < 0.001 |
PA (MET-h/week)a | 657.00(971.0) | 619.00(929.0) | 670.37(974.5) | 719.87(1003.6) | 0.449 |
Psychological status, n (%) | |||||
Depression | |||||
Yes | 767(25.7) | 262(8.8) | 225(7.5) | 280(9.4) | 0.017 |
No | 2215(74.3) | 730(24.5) | 769(25.8) | 716(24.0) | |
Anxiety | |||||
Yes | 850(28.5) | 295(9.9) | 256(8.6) | 299(10.0) | 0.062 |
No | 2132(71.5) | 697(23.4) | 738(24.8) | 697(23.4) | |
stress | |||||
Yes | 915(30.7) | 315(10.6) | 298(10.0) | 302(10.1) | 0.661 |
No | 2067(69.3) | 677(22.7) | 696(23.3) | 694(23.3) |
Associations between LI or LL and psychological status
Tertile cutoffs | 1st tertile (N = 992) | 2nd tertile (N = 994) | 3rd tertile(N = 996) | P-trend* |
---|---|---|---|---|
lipophilic index | ||||
Depression | ||||
Crude model | Ref | 0.815(0.66–1.00) | 1.090(0.89–1.32) | 0.017 |
Adjusted model | Ref | 0.793(0.63–0.79) | 1.109(0.89–1.37) | 0.011 |
Anxiety | ||||
Crude model | Ref | 0.820(0.67–0.99) | 1.014(0.83–1.22) | 0.063 |
Adjusted modelb | Ref | 0.808(0.64–1.00) | 1.013(0.81–1.26) | 0.080 |
Stress | ||||
Crude model | Ref | 0.920(0.76–1.11) | 0.935(0.77–1.13) | 0.661 |
Adjusted modelc | Ref | 0.955(0.77–1.18) | 0.871(0.69–1.08) | 0.457 |
lipophilic load | ||||
Depression | ||||
Crude model | Ref | 0.822(0.67–1.00) | 0.845(0.69–1.03) | 0.112 |
Adjusted modela | Ref | 0.925(0.72–1.18) | 1.023(0.71–1.46) | 0.676 |
Anxiety | ||||
Crude model | Ref | 0.736(0.60–0.89) | 0.771(0.63–0.93) | 0.003 |
Adjusted modelb | Ref | 0.736(0.57–0.93) | 0.762(0.53–1.07) | 0.045 |
Stress | ||||
Crude model | Ref | 0.991(0.81–1.20) | 1.064(0.88–1.28) | 0.729 |
Adjusted modelc | Ref | 1.145(0.90–1.44) | 1.146(0.81–1.60) | 0.527 |