Table 1.
Subject characteristics
| Variable | Group (n) |
p-value |
||||
|---|---|---|---|---|---|---|
| CP (n=1086) | RAP (n=508) | Control (n=1024) | CP vs. control | RAP vs. control | CP vs. RAP | |
| Mean age (±SD) | 50.8 (14.7) | 45.3 (15.5) | 49.1 (14.2) | 0.0072 | <0.0001 | <0.0001 |
| Median age of pancreatitis symptom onset (IQR) | 44.0 (32.0, 54.0) | 40.2 (27.0, 51.0) | N/A | N/A | N/A | <0.001 |
| Male sex | 598 (55.1) | 235 (46.3) | 393 (38.3) | <0.0001 | <0.0001 | <0.0001 |
| Racea | N/A | N/A | N/A | |||
| White | 819 (75.5) | 445 (87.6) | 714 (87.8) | |||
| Black | 234 (21.6) | 46 (9.1) | 264 (9.1) | |||
| Other | 32 (3.0) | 16 (3.2) | 45 (3.2) | |||
| Prior cholecystectomy | 480 (44.2) | 277 (54.5) | 129 (12.6) | <0.0001 | ||
| Alcohol use category | <0.0001 | 0.0282 | <0.0001 | |||
| Abstainer | 182 (17.2) | 124 (24.9) | 175 (21.3) | |||
| Light | 182 (17.2) | 140 (28.1) | 267 (32.5) | |||
| Moderate | 178 (16.8) | 114 (22.9) | 181 (22.1) | |||
| Heavy | 161 (15.2) | 60 (12.0) | 128 (15.6) | |||
| Very heavy | 356 (33.6) | 61 (12.2) | 70 (8.5) | |||
| Smoking status | <0.0001 | 0.041 | <0.0001 | |||
| Never smoker | 269 (24.8) | 225 (44.6) | 510 (50.0) | |||
| Past smoker | 282 (26.0) | 160 (31.8) | 263 (25.8) | |||
| Current smoker | 532 (49.1) | 119 (23.6) | 247 (24.2) | |||
| Maximum BMI | ||||||
| Current BMI | 24.7 (5.6) | 27.1 (6.5) | 28.5 (6.1) | <0.0001 | <0.0001 | <0.0001 |
| Past medical history | ||||||
| Diabetes mellitus | 347 (32.0) | 84 (16.5) | 101 (9.9) | <0.0001 | 0.0002 | <0.0001 |
| Renal disease or failure | 66 (6.1) | 24 (4.7) | 18 (1.8) | <0.0001 | 0.0008 | 0.2755 |
| Heart disease | 132 (12.2) | 33 (6.5) | 62 (6.1) | <0.0001 | 0.7324 | 0.0005 |
| Liver disease | 95 (8.8) | 19 (3.7) | 28 (2.7) | <0.0001 | 0.281 | 0.0003 |
Proportions account for missing data on some variables, and may not add up to 100.0 due to rounding CP chronic pancreatitis, RAP recurrent acute pancreatitis, BMI body-mass index, IQR interquartile range
aRace is not compared between groups since NAPS2-AA deliberately enrolled subjects from minority races