Supplemental Table 1. Change in serum PTH according to frequency of sun protective behavior and racea

All / White / Hispanic / Black
STAY IN SHADE / N=5315 / N=2576 / N=1301 / N=1197
Rare / ref / ref / ref / ref
Moderate / 0.61 (-0.53, 1.74) / 0.62 (-0.74, 1.99) / -0.49 (-4.19, 3.21) / -0.93 (-4.82, 2.96)
Frequent / 3.88 (2.33, 5.44) / 4.19 (1.98, 6.41) / 3.42 (-0.43, 7.26) / -0.04 (-3.56, 3.47)
p-trend / <0.001 / 0.001 / 0.07 / 0.93
WEAR LONG SLEEVES
Rare / ref / ref / ref / ref
Moderate / 1.39 (-0.25, 3.02) / 1.64 (-0.72, 4.01) / 1.48 (-2.22, 5.17) / 2.32 (-1.05, 5.68)
Frequent / 3.96 (1.29, 6.62) / 4.98 (0.38, 9.58) / 0.95 (-1.89, 3.80) / 5.40 (-0.58, 11.4)
p-trend / 0.002 / 0.01 / 0.41 / 0.03
WEAR HAT
Rare / ref / ref / ref / ref
Moderate / -0.77 (-2.05, 0.52) / -0.64 (-2.81, 1.52) / -0.94 (-3.87, 1.98) / -3.25 (-6.59, 0.09)
Frequent / 0.76 (-0.79, 2.30) / 1.01 (-1.01, 3.04) / 0.76 (-2.96, 4.47) / -2.75 (-5.43, -0.08)
p-trend / 0.54 / 0.47 / 0.80 / 0.02
USE SUNSCREEN
Rare / ref / ref / ref / ref
Moderate / 0.04 (-1.21, 1.29) / 0.98 (-0.67, 2.63) / 0.16 (-3.24, 3.56) / -1.55 (-6.21, 3.11)
Frequent / -0.03 (-1.65, 1.59) / 0.95 (-1.08, 2.98) / -1.50 (-5.17, 2.17) / -1.27 (-7.68, 5.14)
p-trend / 0.98 / 0.32 / 0.46 / 0.52
OVERALL SUN PROTECTION
Rare / ref / ref / ref / ref
Moderate / 0.97 (-0.21, 2.15) / 1.10 (-0.18, 2.39) / -0.48 (-3.01, 2.04) / 0.34 (-2.17, 2.85)
Frequent / 4.29 (1.33, 7.25) / 5.61 (1.42, 9.80) / 2.38 (-3.80, 8.55) / -0.44 (-6.65, 5.78)
p-trend / 0.001 / 0.003 / 0.67 / 0.91

aMultivariate model adjusted for BMI (continuous), age (continuous), gender, season, multivitamin (yes/no), physical activity (relative to peers, less, equal or more), milk consumption (never, rarely, varied, sometimes, often), sun sensitivity (severe burn, mild burn, some tanning, no tanning after ½ hour in the sun), income, education, and race for the All category.

Table S2. Change in serum PTH according to frequency of sun protective behavior and race a
All / White / Hispanic / Black / Other
STAY IN SHADE / N=5315 / N=2576 / N=1301 / N=1197 / N=241
Low / - / - / - / - / -
Moderate / 0.61 (-0.53, 1.74) / 0.62 (-0.74, 1.99) / -0.49 (-4.19, 3.21) / -0.93 (-4.82, 2.96) / 0.80 (-6.49, 8.09)
High / 3.88 (2.33, 5.44) / 4.19 (1.98, 6.41) / 3.42 (-0.43, 7.26) / -0.04 (-3.56, 3.47) / 2.34 (-4.09, 8.76)
p-trend / <0.001 / 0.001 / 0.07 / 0.93 / 0.46
WEAR LONG SLEEVES
Low / - / - / - / - / -
Moderate / 1.39 (-0.25, 3.02) / 1.64 (-0.72, 4.01) / 1.48 (-2.22, 5.17) / 2.32 (-1.05, 5.68) / -6.42 (-11.7, -1.16)
High / 3.96 (1.29, 6.62) / 4.98 (0.38, 9.58) / 0.95 (-1.89, 3.80) / 5.40 (-0.58, 11.4) / -4.45 (-13.0, 4.12)
p-trend / 0.002 / 0.01 / 0.41 / 0.03 / 0.09
WEAR HAT
Low / - / - / - / - / -
Moderate / -0.77 (-2.05, 0.52) / -0.64 (-2.81, 1.52) / -0.94 (-3.87, 1.98) / -3.25 (-6.59, 0.09) / 0.44 (-10.1, 11.0)
High / 0.76 (-0.79, 2.30) / 1.01 (-1.01, 3.04) / 0.76 (-2.96, 4.47) / -2.75 (-5.43, -0.08) / 5.51 (-4.35, 15.4)
p-trend / 0.54 / 0.47 / 0.80 / 0.02 / 0.35
USE SUNSCREEN
Low / - / - / - / - / -
Moderate / 0.04 (-1.21, 1.29) / 0.98 (-0.67, 2.63) / 0.16 (-3.24, 3.56) / -1.55 (-6.21, 3.11) / -6.21 (-13.3, 0.87)
High / -0.03 (-1.65, 1.59) / 0.95 (-1.08, 2.98) / -1.50 (-5.17, 2.17) / -1.27 (-7.68, 5.14) / -6.18 (-12.7, 0.28)
p-trend / 0.98 / 0.32 / 0.46 / 0.52 / 0.05
SPF c / N=1079 / N=770 / N=200 / N=59 / N=50
Low / - / - / - / - / -
Moderate / 1.54 (-1.06, 4.14) / 2.22 (-0.84, 5.28) / 3.08 (-3.05, 9.20) / -2.52 (-13.5, 8.42) / -7.23 (-16.5, 2.06)
High / -1.44 (-6.89, 4.01) / -2.58 (-7.74, 2.57) / 4.85 (-11.2, 20.9) / 17.4 (-2.01, 36.7) / -1.80 (-6.07, 2.48)
p-trend / 0.42 / 0.37 / 0.20 / 0.64 / 0.12
OVERALL SUN PROTECTION
Low / - / - / - / - / -
Moderate / 0.97 (-0.21, 2.15) / 1.10 (-0.18, 2.39) / -0.48 (-3.01, 2.04) / 0.34 (-2.17, 2.85) / 2.04 (-4.99, 9.06)
High / 4.29 (1.33, 7.25) / 5.61 (1.42, 9.80) / 2.38 (-3.80, 8.55) / -0.44 (-6.65, 5.78) / -5.61 (-17.3, 6.09)
p-trend / 0.001 / 0.003 / 0.67 / 0.91 / 0.88