Table 1: Respondent demographic, survey year, and weather characteristics for those sunburned unintentionally and those not sunburned (aside from survey year these are pooled over survey years 1999/00 to 2005/06).

MeasureUnintentional sunburn
Yes ()No ()% within category yes
% ()% ()

Sex0.425
 Male54.9 (184)52.6 (1128)14.0
 Female45.1 (151)47.4 (1017)12.9
Age group0.616
 15–1910.2 (34)10.3 (221)13.3
 20–2915.2 (51)15.9 (340)13.0
 30–3923.3 (78)19.8 (424)15.5
 40–4922.1 (74)21.8 (467)13.7
 50–5920.3 (68)20.8 (447)13.2
 60–699.0 (30)11.5 (246)10.9
Skin type<0.001
 I28.5 (95)23.9 (509)15.7
 II62.2 (207)57.1 (1214)14.6
 III8.7 (29)17.8 (379)7.1
 IV0.6 (2)1.2 (26)7.1
Missing 217
City0.421
 Auckland20.9 (70)21.3 (457)13.3
 Hamilton21.5 (72)21.2 (454)13.7
 Wellington16.4 (55)19.7 (423)11.5
 Christchurch19.4 (65)19.8 (424)13.3
 Dunedin21.8 (73)18.0 (387)15.9
Priority ethnicity0.308
 European91.0 (303)86.9 (1853)14.1
 Maori4.2 (14)7.0 (149)9.0
 Pacific1.5 (5)2.0 (43)10.4
 Asian2.7 (9)3.4 (72)11.1
 All others0.6 (2)0.8 (16)11.1
Missing 212
Highest educational qualification0.563
 School cert. or less29.9 (100)26.3 (563)15.1
 Year 12-1320.3 (68)20.9 (449)13.2
 Certificate24.8 (83)25.5 (546)13.2
 Other3.9 (13)3.2 (69)15.9
 Degree21.2 (71)24.2 (518)12.1
Occupation0.173
 Sales or white collar29.3 (98)28.3 (606)13.9
 Semiskilled10.5 (35)10.4 (223)13.6
 Skilled18.5 (62)14.2 (305)16.9
 Other15.8 (53)15.9 (340)13.5
 Professional26.0 (87)31.3 (671)11.5
Survey month<0.001
 December28.1 (94)22.8 (489)16.1
 January27.5 (92)25.0 (536)14.6
 February39.7 (133)40.6 (870)13.3
 March4.8 (16)11.7 (250)6.0
Survey year0.222
 1999/200033.7 (113)31.9 (685)14.2
 2002/200328.4 (95)33.1 (710)11.8
 2005/200637.9 (127)35.0 (750)14.5
Weather information
 Mean temperature (°C)22.3 (2.9)21.7 (3.1)0.160
Missing 734
 Mean wind speed (Km/h)19.4 (8.9)19.8 (9.8)0.023
Missing 75
 Mean cloud cover (Octa)3.6 (1.5)3.7 (1.5)0.554
Missing 99480
 UVR (joules)738.2 (161.9)715.1 (182.3)0.006
Missing 117

Note. Fitzpatrick sun-sensitivity scale, modified. Percentages (may not be total 100% due to rounding). Other includes highest educational qualification unspecified and not knowing. Other includes occupations listed as student, unemployed, no main earner, other, and missing. % () reported except for mean (SD). Chi-square test for independence reported except for t-tests. Row percentages were calculated, representing the percentage of those unintentionally sunburned within each category of the measures.