Skip to main content

Advertisement

Table 1 Characteristics of the participants.

From: The effects of air pollution on vitamin D status in healthy women: A cross sectional study

  Tehran High pollution area Ghazvin Low pollution area Total
Age (years)* 35 (29-42) 39 (31-44)*** 37(31-44)
BMI (kg/m 2)** 28 ± 5 26 ± 3*** 27 ± 4.6
Daily dietary Calcium intake (mg)** 964 ± 402 880 ± 343 925 ± 379
Daily dietary Phosphor intake (mg)** 1255 ± 491 1113 ± 430 1184 ± 424
Daily dietary vitamin D intake (ug)* 1.67 (0.8-2.8) 1.60 (0.6-2.7) 1.60(0.9-2.7)
Daily dietary protein intake (gr)** 67 ± 27 62 ± 35 64 ± 27
Housing status% ***    
Apartment 73(73) 47(47) 120(60)
Villa 27(27) 53(53) 80(40)
Time spent outdoor% ***    
>3 days in week 69(69) 85(85) 154(77)
<3 days in week 31(31) 15(15) 46(23)
Sun screen %    
Routine 33(33) 20(20) 53(26.5)
Never 41(41) 50(50) 91(45.5)
Occasion 26(26) 30(30) 56(28)
UVB (W/m 2)** 0.16 ± 0.03 0.31 ± 0.07 *** 0.27 ± 0.09
  1. * Median (IQ: 25-75). ** Mean ± SD. *** P-value < 0.05